After every new graphics card is introduced, a flurry of clones from different manufacturers hits the market. The reason is simple: in order to be competitive, and to get products out at the same time as the other vendors, there is little room for customization. Regardless of the manufacturer, the first version of any new graphics card is almost always based closely on the reference design that either AMD or Nvidia provides. As vendors launch carbon copies of the PCB board and coolers, there is little reason to compare one manufacturer’s version against the others, unless you’re looking at warranty and bundle details.
But after a while, some companies get creative, providing a truly unique spin on the product. Sometimes a unique cooler is used, sometimes the buyer is given more control over things like voltages and overclocks, and sometimes the entire PCB is redesigned. Reviewing these non-reference solutions is usually a much more interesting proposition, which brings us to our comparison here.
By now, the mid-range battle between the Radeon HD 4850 and the GeForce GTS 250 is no secret, and it’s common knowledge that either of these cards offers competitive and compelling performance at very reasonable prices. But how do the unique implementations of these products compare?
Enter the Gigabyte GV-N250ZL-1GI and Asus EAH4850 MT. We put these two cards through their paces to really see if either of these unique offerings can break the stalemate between the garden-variety Radeon HD 4850 and the vanilla GeForce GTS 250.
Let’s start alphabetically with Asus' card.
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In the second picture of the 4850, the card can be seen bent due to the weight.Reply
The Gigabyte would be more effective with 2 fans.Reply
rags_20In the second picture of the 4850, the card can be seen bent due to the weight.Reply
Hi rags_20 -
Actually, the appearance of the card in that picture is caused by barrel or pincushion distortion of the lens used to take the photo. The card itself isn't bent.
demonhorde665... try not to triple post.Reply
looks bad... and eratic. and makes the forums/coments system
more clutered than need be.
ps. your not running the same bench markes as Toms so your not really comparable.
yes, same game and engine, but for example in crysis, the frame rates are completely different from the start, through to the snowey bit at the end.
pps. are you comparing your card to there card at the same resolution?
I've been looking for a comparison like this for several weeks. Thank you although it didn't help me too much in my decision. I also missed some comments regarding the Physix, Cuda, DirectX 10 or 10.1 and Havok discussion.
I would be very happy to read a review for the Gainward HD4850 Golden Sample "Goes Like Hell" with the faster GDDR5 memory. If it then CLEARLY takes the lead over the GTS 250 and gets even closer to the HD4870 then my decision will be easy. Less heat, less consumption and almost same performance than a stock 4870. Enough for me.
btw. Resolutions I'm most interested in: 1440x900 and 1650x1080 for 20" monitor.
Under the test setup section the cpu is listed as core 2 duo q6600, should it not be listed as a quad? Feel free to delete this comment if it is wrong or when you fix the erratum.Reply
Why a Q6600/750i setup? That is certainly less than ideal. A Q9550/P45 or 920/X58 would have been a better choice in my opinion (and may have exhibited a greater difference between the cards).Reply
zipzoomflyhighand no the Q6600 is classified as a C2D. Its two E6600's crammed on one die.Reply
No, its classified as a C2Q. E6600 is classified as C2D.
Directly from the article on page 11:
Game Benchmarks: Left 4 DeadClearly this is not an ideal setup to eliminate the processor from affecting benchmark results of the two cards. Most games are not multithreaded, so the 2.4Ghz clock of the Q6600 will undoubtedly hold back a lot of games since they will not be able to utilize all 4 cores.
Let’s move on to a game where we can crank up the eye candy, even at 1920x1200. At maximum detail, can we see any advantage to either card?
Nothing to see here, though given the results in our original GeForce GTS 250 review, this is likely a result of our Core 2 Quad processor holding back performance.
Stop triple posting!
The default clock speeds for the Gigabyte GV-N250ZL-1GI are 738 MHz on the GPU, 1,836 MHz on the shaders, and 2,200 MHz on the memory. Once again, these are exactly the same as the reference GeForce GTS 250 speeds.
Later in the article you write,
or the sake of argument, let’s say most cards can make it to 800 MHz, which is a 62 MHz overclock. So, for Gigabyte’s claim of a 10% overclocking increase, we’ll say that most GV-N250ZL-1GI cards should be able to get to at least 806.2 MHz on the GPU. Hey, let’s round it up to 807 MHz to keep things clean. Did the GV-N250ZL-1GI beat the spread? It sure did. With absolutely no modifications except to raw clock speeds, our sample GV-N250ZL-1GI made it to 815 MHz rock-solid stable. That’s a 20% increase over an "expected" overclock according to our unscientific calculation.
Your math is wrong. A claim of 20% over clock on the GV-N250ZL-1GI would equal 885.6 MHz. 10% of 738MHz = 73.8 MHz. So a 10% overclock would equal 811.8 MHz. 815 MHz is nowhere near 20%. In fact, according to your numbers, the GV-N250ZL-1GI barely lives up to its 10% minimal capability.