Friday 15 November 2013

One of my Insights: Computer Brains?

Now I found this topic up on TomsHardware Forums that really is a great question worth Answering. A Hard Drive is the brains of the Computer? Which Component is it exactly, that acts as the brains of a Computer?

Now if you say the CPU or Processor, that's the right answer in General assumption. People generally say that the CPU will normally be the brains of the computer. Since it'll be the one that processes Data upon receiving an instruction Data. Now in my perspective, the brains of a Computer stems well beyond than just the CPU. It gets a lot more complicated than that.

Now picture a typical human brain. Now what does it do? The typical functions of a Human Brain are basically

1) Processing Instruction
2) Receives Instruction
3) Stores Data and Information

Sounds familiar and sounds like typical functions of computer components? Basically a Computer in a nutshell does that, in a electric format. And many of the components Work in tendem to make it function in a way that will match what a human brain does.

The Basic Components toward a Computer are:
CPU,
RAM,
Motherboard
and storage.


Now Let's start with the CPU:
Central Processing Unit - The rate of processing data and carries out its instructions. The Higher the clock speeds, the faster it'll go. And having More CPU Cores will allow multitasking to carry out more tasks at the same time.

The Memory: The Memory will receive Information and holding on to the data before you can quickly access or process it.

Storage: Storage can mean either your Hard Drive or Solid State, but each has the very same use; pure storing. Storage in a computer sense will Archive and preserve your information that you want. The Storage becomes your internal library for all the data to be retrieved just like mind acting to remember past good memories. If your storage Dies then in a way your PC will basically face Amnesia, because you don't have any data archived in the drive.

Motherboard: Basically everything that connects the components together like the Nervous system of the computer so all the other components can work together. If it dies, your PC is basically Dead till replacing of the Mobo. The motherboard however in General is the mother brain of the Computer that controls everything. If it dies, your Computer is basically brain dead.


So in all, the Computer itself is actually all-in-one combined brain. The rest of the parts are just bling stuff. So just a bit of my insights today!

Thursday 14 November 2013

ZOTAC nVidia GeForce GTX 780 AMP! Edition Video Card Review

A few more posts before this and I said that I was currently involved in a small mass order involving a bunch of nVidia GeForce GTX 780s. Now these are not your run-off-the-mill GTX 780 Video Cards, these are really beefed up GTX 780s with some serious muscle. Now few major Websites have ever reviewed the ZOTAC AMP! Edition GTX 780s and I'll do the honors this time.

STORY BEHIND THE PURCHASE

Well, when I first bought my Custom Build in 2011, it had undergone a tonne of graphics card switching. Initially I had a GTX 550 Ti but I noticed some tearing issues when it comes to more demanding games like Crysis 2 and Battlefield 3. Although it proved quiet and cooled well, it wasn't powerful enough to sustain games down the road, even at 1680 x 1050.

Then I bought 2 AMD Radeon 6970s in Crossfire. The first I bought was from Sapphire, Dual Fan one It was quiet but the open air shroud potentially could bring in too much hot heat from the inside of the computer chassis. The addition of the Gigabyte Reference one although pretty quiet, was still real hot. And 2 cards as you may expect, is a freaking power whore so It drew in a lot of power. Then I ditched those and reverted to a single card config in the form of a GTX 680. Performed well as a reference card though I took quite a performance hit compared to the 6970s. Although the GK104 is still a better chip, the memory bus is still the same.

October 2013: AMD released the Hawaii R9 290X. I thought it was good price at the time of release. But being hot and noisy put me off somewhat. But then fate intervened that nVidia Slashed the price of the GTX 780 and the 770 in view of that and the upcoming 780 Ti. So when a friend at VR-Zone started retailing Zotac GTX 780 and 770 Reference and AMP Edition Cards, I decided to just jump in. For one, it was at that time like nearly 80 SG bucks cheaper than the 290X, heavily overclocked to perform just as well, cooler and quieter. I mean seriously, what more would you want.

Now as I started using the card and started to overclocking it, it also became clear that it made no sense to go for the more expensive 780 Ti card, because I don't need it. When I overclock it, I can get performance gains of a stock 780 Ti, as you can see in the benchmarks I did. The 3GB GDDR5 384-bit interface performed a lot better than the 2GB 256-bit GTX 680 which suffered at higher resolutions due to memory bottlenecks. So I was able to get my performance of the 6970 in Crossfire back again, or maybe better, and I still have the juice required for running my games in 3 screens.

SPECS:

Now let's compare spec-wise.

REFERENCE GTX 780 / ZOTAC AMP! EDITION GTX 780
GPU CORE CLOCKS: 863 MHz / 1006 MHz - Difference of 143 MHz
CPU BOOST CLOCK: 900 MHz / 1059 MHz - Difference of 159 MHz
Boost Increase: 37 MHz / 53 MHz

MEMORY CLOCKS: 6008 MHz / 6208 MHz - Difference of 200 MHz GDDR5

COOLING: Reference Blower / 2 x 75mm and 1 x 85mm Fans.

SIMILARITIES:
Core: GK 110 Kepler
Memory Bit-rate: 384-bit
Memory: 3GB / 3072MB GDDR5

As you can probably tell, the speed differences between the 2 cards are impressive. And in a way, you could essentially dub the Zotac Card as a GTX 780 GHz Edition. And if the price of the GPU to is slashed to what is essentially less than even a Reference GTX 780 in the USA, could it be the card of choice? We'll find out.

IN THE BOX

You don't really get a lot but most of the things that are required are included in the box. You'll receive the following in the bundle:

- ZOTAC'S Very own GTX 780 AMP! GHz Edition Card.
- Installation Manual
- User Manual
- DVI to VGA Adapter - Nice to have but shouldn't be used with a card of this caliber
- Driver and Utilities Disc - Best to download the latest nVidia Drivers from GeForce.com and the Utilities from Zotac.
- Case Sticker - Pretty big one too
- Dual Molex to 6 Pin
- Dual 6 Pin to 8 Pin

Zotac GTX 780 AMP! Unboxed, along with the card that was
replaced, the GTX 680 from PNY.

The look of the Case Sticker, pasted on the front door of the Fractal Design Define R3. And yes, it's quite big.



Now we'll gonna compare between my last card the GTX 680 and see how much better it performs.

LOOKS AND DESIGN

 In terms of looks, just gaze at these babies. Although they don't really match many colour schemes because of the orange fans, they do strike out actually looking pretty awesome themselves.


















Something that most non-reference cooler doesn't have what the Reference card has, are the pulsing LEDs, The ZOTAC Logo replaces that. You can't really see it until you add some lights to the case. PCB is black which is good, and complements other colors pretty well if you're card is oriented typically horizontally. I'm not particular about color schemes though. For me I strongly believe that as long as its functional, design is not much of a concern, my case didn't have a side panel window to show the goods anyway.



INSTALLATION AND SETUP

Installation of the card is standard like most PCI-E Graphics Card. Just plug in the card to the slot, plug in the power cables, screw back the thumbscrews to the GPU Bracket and it's done. It's slightly longer than a reference GTX 680, but not by much. What I did find however that if you're using an old Motherboard like my ASUS P8P67M-Pro, I had to update the motherboard BIOS from 3602 to 3701 in order for the computer to boot the GPU properly. Otherwise when you install the card, the system will skip post and will have a blank screen for 2 minutes before starting up Windows because it can't pick up your GPU properly. OS will detect the card but the system posting won't. Strangely though, when I used my even older 1502 BIOS on the ATX version of this board on my 2nd rig, the GTX 780 booted right up on Post the way it should.


COOLING FEATURES AND TEMPERATURES:

Even though the Gigabyte Windforce edition is more efficient (Being able to perform cooler and even maintain a less than 2-slot profile; even the Gigabyte WF 780 Ti has that), its solution of 3 Cooling Fans (2 7.5cm and 1 8.5cm) is not to be underestimated. In fact all these non-reference coolers perform very close, Direct CU II, Gigabyte Windforce, Gainward, Even Zotac.

A much faster running card than the GTX 680, still cooler and quieter. And because of this beefy cooling, GPU Boost 2.0 can allow for more overclocking headroom than a reference card. Hexus reviewed and managed core boost clocks nearly 30% faster at stock than a Reference Card at stock speed and still has enough room for more. A Max overclock of 1.2 GHz can be achieved which is impressive. However because of an open shroud, it's best to have real good air flow to expel the heat out of the chassis. Temperatures even when heavily overclocked remained acceptable, at an impressive 76 with it overclocked despite I tweaking the Temperature threshold to 95 Degrees Celsius / Centigrade or whatever floats your boat. This is evident with the Furmark tests. Whacking a household fan blowing straight to the open side will turn down the temperatures even further.

With it idling, the card is cool to the touch at 36 degrees. Anything below 40 when idling is already pretty nice.

OVERCLOCKING:

The Zotac AMP!, already quite heavily overclocked still had a bit more to offer. With it tweaked an extra 150 MHz to the Core Clock and 100 MHz to the Memory Clock in 3D Mark, I discovered a noticeable boost in performance which helped a lot in Fire Strike. Even at these overclocks, typical gaming loads lie somewhere from 76 degrees and nowhere does it hit the 95 degree thermal threshold with GPU Boost 2.0. Now compared with the piss poor cooler of the R9 290X and the Cheaper 290, these hair dryers hardly have any headroom for overclocking. It has been proven though, that overclocking will be more stable with help from Water cooling or aftermarket cooling like Arctic's Accelero Extreme III and the Hybrid, but guess what, what AMD can, nVidia's Cards can do it too.

FYI, the ZOTAC GTX 780 AMP! Edition has an ASIC Value of 88.9% which is considered high. Your numbers may vary. Some may be a bit better, some may be a little bit worse. Now I'd did this initial setting via EVGA Precision X but MSI Afterburner which I did subsequently is a lot easier to monitor. But whichever floats your boat, works either way.



The following pictures show some of the performance numbers and some tweaks I made to the card. I think the results speak for themselves.

3D Mark: Fire Strike Extreme Score

5139: Zotac AMP! GTX 780 with a Coe i7 2600K at 4.5 GHz, compared to
5013 from Overclock3D: GTX 780 Ti on a i7 3960X at 4.6GHz, 

My Current Configuration is enough to do better than a GTX Titan as well as a Haswell based i7 4770K and the Extreme Score edges a bit in its favor when pitted against a GTX 780 Ti and an R9 290X. So if you're short on cash, you don't need to spend tonnes of money on the GTX 780 Ti. Just grab a non-reference 780 which is cheaper than either option and overclock to your hearts content and this combination can do better than OC3D's Machine. For gaming, the CPU doesn't matter all that much unless it's a old gen i5 upgrade to a new Gen i7.

OVERCLOCKING STABILISING:

I did ran Furmark and discovered that the 150 MHz Overclock was starting to produce a few artifacts even though I was nowhere near the threshold. So I dialled back to 120 MHz and no change to Memory Clocks. Yea it's only a 30 MHz difference which doesn't hit FPS anyhow. In fact for some odd reason, Fire Strike score increased ever so slightly by a mere 10 points, perhaps stable?

So yeah, this one is currently my overclock set on my GPU.

Now here's the Burn in results after 15 minutes:



COMPARISON WITH BASE ZOTAC AND STOCK GTX 780s.
(3D Mark 11, Company of Heroes 2 and Metro: Last Light)


Now what I have done is to use 3D Mark 11 and 2 of possibly the most GPU taxing games that are available: Metro: Last Light and Company of Heroes 2. Even just at standard HD, activating all the bells and whistles for these titles will still tax this GPU heavily, and a lot more so than Battlefield 4. Running BF4 on Ultra 1920 x 1080 and 2560 x 1440 is no problem on a stock so there isn't a reason for a need to bench it. Also, I set my GPU clocks to replicate the following:

i) Stock GTX 780 (OC)
Core Clock = 901 MHz
Boost 954 = MHz
Practical Max Boost = 980 MHz
Memory = 6008 MHz

Now it would be a better apples to apples comparison if I use a reference card but I don't have one available. So I tune my card to simulate this. However the ZOTAC AMP was already so high in Factory OC that downclocking to stock GTX 780 speeds couldn't be reached. So I underclocked my card as low as I can which is still 38 MHz OC on a stock GTX 780 at 863 MHz. This extra wouldn't mean much and this OC on a stock card is child's play anyway. Memory Clocks were cut to reference Speeds. So let's call this a Stock 780 OC.

ii) Base ZOTAC AMP
Core Clock = 1006 MHz
Boost = 1059 MHz
Practical Boost = 1097 MHz
Memory Clock = 6208 MHz

The speeds that came with the card. Already quite heavily Overclocked from the get go with 143 MHz more than reference.

iii) My Current OC
Core Clock = 1126 MHz
Boost = 1179 MHz
Practical Boost = 1215 MHz

Even with the card pushed like this, it could still maintain a 1.2 GHz on 3D Mark 11. And it shows that the card still have overclocking headroom. This is already 30% Core speed above the reference at 863 which is quite a lot.

3D Mark 2011:
Now let's compare scores here - Blue is the P-Score and Red is the Graphics Score that affected that.


The Base Zotac AMP already impressive, pounces a Stock 780 with 10% for Graphics and 7% for Combined P-Score. With that serious overclocking however, the gap widens further to 13% and graphics score by a .1% under 20% over a stock OC GTX 780. The difference is a lot more if we compare an actual stock card at stock speeds and boosts and an OC AMP! Card.

Metro: Last Light
This game has its own benchmark and I set it up like so:



This is basically as high as it can go, with Tessellation, SSAA and Advanced PhysX on


I'm not emphasizing the Minimum and Max Frame rate because fluctuations between them are typical in Metro: Last Light. So more to the Average which is well within margin of error. Having a stock GTX 780 with a bit of an overclock should have no problems turning everything up at 1920 x 1080 though you'll probably want to turn of SSAA since the visuals won't be noticeable. A base Zotac AMP! Edition will run about 8.6% better. But an OC Zotac AMP! Edition Card will have a good 18.3% lead over a stock card on Average. 41.27 FPS when OC-ed beats out OC 3D's OC GTX 780 Ti. I'm not sure whether it's a different benchmark or not.

Turning off SSAA will net these graphs:

Even without SSAA, the game's graphics didn't really change much. You'll get a lot smoother visuals, with frame rates boosted consistently by 49-50% across all 3 tests again. So if you want smoother playing experience but without sacrificing hardly any quality, just turn off SSAA. The difference in % of frame rate between the ZOTAC AMP OC and a Reference OC is still within expected 18~%.

Company of Heroes 2
Another extremely demanding title that will render High-End Notebook GPUs completely unplayable even at the Lowest Settings. And like Metro, COH 2 has its own Benchmark.


However, being the Enthusiast that I am, I crank up everything again. And even for an RTS game which rarely have titles that heavily puts high end systems to its knees, this game demands a lot more than even the most powerful notebook GPU available; the GTX 780M at max settings. Ideally you would like to have a Dual GPU setup if you want to play this game at higher resolutions. But I found that a single GTX 780 will still suffice at maximum settings on standard HD as you can see by the chart.
Sorry for the typo, the Zotac OC's Average is 44.29. The boost of about 9.4% for a Base AMP and a 16.9% when OCed over a stock card is expected. The difference is quite noticeable even 17% can matter a lot more than just the smoothness, but also the responsiveness that you'll want to possibly enjoy the most out of. Even though GeForce Experience recommends turning down Anti Aliasing down to medium, having just played the entire campaign with everything maxed out without a hitch tells that this card is ready to take on maximum details for all these super intensive games.


NOISE:

Another area where the AMP Edition really shines. Even at 80% Fan Speeds, with the fans spinning at 2700 rpm, the noise remains surprisingly low, it's a bit more noticeable at maximum fan speeds, but not annoying. In my case I always have those household fans where it just sits on the floor and its noise alone downright overpowers the sound of the 3 fans in the GPU. So if I feel like it, I can crank it to 100%. Compare that with the R9 290X. Pretty obvious isn't it? Now the Furmark Picture you see above you was set with Fans at maxed out. And if my sensitive ears can live with it, so can yours and that pretty much tells you about the noise. Very honestly speaking this is the very first card which I'm really happy to max fans out anytime. The last non-reference coolers were the GTX 550 Ti and the Sapphire 6970. Now The GTX 550 Ti was really cool running and pretty silent but wasn't exactly a high end card at the time, not by a long shot. And the Radeon 6970 was a heat nightmare when it first came out.


PRICE TO PERFORMANCE RATIO:

From a hefty pricing cut from 649 USD to 499 USD, cheaper than the R9 290X, nVidia has made the correct decision. However none of the shops are cutting prices yet till they sell off their old stock. In my case, the Zotac AMP! bought at a mass order was at 739 SGD, 80 bucks cheaper than the hot noisy Jet Engine of the R9 290X, and a whopping 340 cheaper than the 5-10% faster MSI Lightning GTX 780. It is still not so much for the meek of wallet but not as bad now. It does come with Splinter Cell Compilation rather than the newer official nVidia Bundle of games which is sadly region restricted to the USA. However, you still get a pretty good set. And better yet, the ZOTAC AMP is priced even less than half of the slightly slower Titans at 1599 a pop so pump 2 in SLI to make the Titans Seriously embarrassing.


THE BREAKDOWN:

What Zotac here has basically done is creating the fastest GTX 780 in the market while running cool and quiet. Its heavy factory overclock to 780 GHz Levels and decent headroom can edge itself on par with the GTX 780 Ti and outpaces the R9 290X and without the noise and heat output. And with further tweaking, the card's potential can soar up to 20% better in Frame Rate Performance than a stock GTX 780. Sure, may not be as par as the Gigabyte Windforce Coolers but more than decent enough. Other than that, the ZOTAC And in light of the recent price cuts, it could be a great time to snag GTX 780s off the shelves.

What's Good
- Overclocking Headroom
- Performance (Very close to a GTX 780 Ti, almost 20% boost over a stock 780)
- Cooling and Acoustics
- Though expensive, the Value for Money greatly increased with the price cuts.

What we'd like to see
- More things to include with the GPU like a Poster or something
- More substancial Game Bundles

What we don't like
- Lacks the pulsing LEDs that the reference 780 and 780 Tis have.
- Somewhat dull looks.


Overall: An Editors' Choice

Friday 1 November 2013

nVidia Shadowplay: First thoughts and Impressions.

Now this week, I've been bringing you my footage and gameplay / walkthrough of Battlefield 4. You might have noticed that my last couple of videos recorded in-game. Other than the compression to further save space with Camtasia Studio, my videos have been recorded Manually with nVidia Shadowplay.

NOW WHAT IS NVIDIA SHADOWPLAY?

It's basically a new recording utility / tool / software / whichever term that floats your boat that nVidia recently developed. Upon updating of GeForce Experience to 1.7, Shadowplay will automatically be installed as an add-on, free of charge. It's required to have current Kepler GPUs from the GTX 650 and better in order to work.

Now how I configured Shadowplay is that I make it feel like I'm using FRAPS so set it to Manual mode. Like FRAPS, recording is equally easy. Took a few tries to get used to it so Now I grasped it in Manual Mode no problems.

So if you want to check these 2 Battlefield 4 videos (Missions: Singapore and Kunlun Mountains), you can check it out.)



Personally, the quality difference is subjective but performance loss isn't as heavy as FRAPS which is nice. Also a big welcome sight compared to FRAPS is you're now able to control the quality either for maximum detail or save space, something that FRAPS can't do and records AVI Videos uncompressed. Even at max quality, 10 minutes of full HD footage in Shadowplay is way less than 5 minutes of FRAPS. 1.1GB of 10 minutes compared to 4 freaking Gigabytes of 5 minute videos. Although FRAPS has an option of recording Full Scale Videos but shrink it to half of the length and breadth Resolutions, the really bad jagged edges will be apparent.

This will surely kick FRAPS in the nuts if they found that.