ATI Radeon HD 4890 vs. NVIDIA GeForce GTX 275
by Anand Lal Shimpi & Derek Wilson on April 2, 2009 12:00 AM EST- Posted in
- GPUs
I'm not really sure why we have NDAs on these products anymore. Before we even got our Radeon HD 4890, before we were even briefed on it, NVIDIA contacted us and told us that if we were working on a review to wait. NVIDIA wanted to send us something special.
Then in the middle of our Radeon HD 4890 briefing what do we see but a reference to a GeForce GTX 275 in the slides. We hadn't even laid hands on the 275, but AMD knew what it was and where it was going to be priced.
If you asked NVIDIA what the Radeon HD 4890 was, you'd probably hear something like "an overclocked 4870". If you asked AMD what the GeForce GTX 275 was, you'd probably get "half of a GTX 295".
The truth of the matter is that neither one of these cards is particularly new, they are both a balance of processors, memory, and clock speeds at a new price point.
As the prices on the cards that already offered a very good value fell, higher end and dual GPU cards remained priced significantly higher. This created a gap in pricing between about $190 and $300. AMD and NVIDIA saw this as an opportunity to release cards that fell within this spectrum, and they are battling intensely over price. Both companies withheld final pricing information until the very last minute. In fact, when I started writing this intro (Wednesday morning) I still had no idea what the prices for these parts would actually be.
Now we know that both the Radeon HD 4890 and the GeForce GTX 275 will be priced at $250. This has historically been a pricing sweet spot, offering a very good balance of performance and cost before we start to see hugely diminishing returns on our investments. What we hope for here is a significant performance bump from the GTX 260 core 216 and Radeon HD 4870 1GB class of performance. We'll wait till we get to the benchmarks to reveal if that's what we actually get and whether we should just stick with what's good enough.
At a high level, here's what we're looking at:
| GTX 285 | GTX 275 | GTX 260 Core 216 | GTS 250 / 9800 GTX+ | |
| Stream Processors | 240 | 240 | 216 | 128 |
| Texture Address / Filtering | 80 / 80 | 80 / 80 | 72/72 | 64 / 64 |
| ROPs | 32 | 28 | 28 | 16 |
| Core Clock | 648MHz | 633MHz | 576MHz | 738MHz |
| Shader Clock | 1476MHz | 1404MHz | 1242MHz | 1836MHz |
| Memory Clock | 1242MHz | 1134MHz | 999MHz | 1100MHz |
| Memory Bus Width | 512-bit | 448-bit | 448-bit | 256-bit |
| Frame Buffer | 1GB | 896MB | 896MB | 512MB |
| Transistor Count | 1.4B | 1.4B | 1.4B | 754M |
| Manufacturing Process | TSMC 55nm | TSMC 55nm | TSMC 65nm | TSMC 55nm |
| Price Point | $360 | ~$250 | $205 | $140 |
| ATI Radeon HD 4890 | ATI Radeon HD 4870 | ATI Radeon HD 4850 | |
| Stream Processors | 800 | 800 | 800 |
| Texture Units | 40 | 40 | 40 |
| ROPs | 16 | 16 | 16 |
| Core Clock | 850MHz | 750MHz | 625MHz |
| Memory Clock | 975MHz (3900MHz data rate) GDDR5 | 900MHz (3600MHz data rate) GDDR5 | 993MHz (1986MHz data rate) GDDR3 |
| Memory Bus Width | 256-bit | 256-bit | 256-bit |
| Frame Buffer | 1GB | 1GB | 512MB |
| Transistor Count | 959M | 956M | 956M |
| Manufacturing Process | TSMC 55nm | TSMC 55nm | TSMC 55nm |
| Price Point | ~$250 | ~$200 | $150 |
We suspect that this will be quite an interesting battle and we might have some surprises on our hands. NVIDIA has been talking about their new drivers which will be released to the public early Thursday morning. These new drivers offer some performance improvements across the board as well as some cool new features. Because it's been a while since we talked about it, we will also explore PhysX and CUDA in a bit more depth than we usually do in GPU reviews.
We do want to bring up availability. This will be a hard launch for AMD but not for NVIDIA (though some European retailers should have the GTX 275 on sale this week). As for AMD, we've seen plenty of retail samples from AMD partners and we expect good availability starting today. If this ends up not being the case, we will certainly update the article to reflect that later. NVIDIA won't have availability until the middle of the month (we are hearing April 14th).
NVIDIA hasn't been hitting their launches as hard lately, and we've gotten on them about that in past reviews. This time, we're not going to be as hard on them for it. The fact of the matter is that they've got a competitive part coming out in a time frame that is very near the launch of an AMD part at the same price point. We are very interested in not getting back to the "old days" where we had paper launched parts that only ended up being seen in the pages of hardware review sites, but we certainly understand the need for companies to get their side of the story out there when launches are sufficiently close to one another. And we're certainly not going to fault anyone for that. Not being available for purchase is it's own problem.
From the summer of 2008 to today we've seen one of most heated and exciting battles in the history of the GPU. NVIDIA and AMD have been pushing back and forth with differing features, good baseline performance with strengths in different areas, and incredible pricing battles in the most popular market segments. While AMD and NVIDIA fight with all their strength to win customers, the real beneficiary has consistently been the end user. And we certainly feel this launch is no exception. If you've got $250 to spend on graphics and were wondering whether you should save up for the GTX 285 or save money and grab a sub-$200 part, your worries are over. There is now a card for you. And it is good.
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jeffrey - Thursday, April 2, 2009 - link
1) ATI driver - Was 8.12 really used? Why? 9.3 was released last month.2) Conclusion - The edge should have gone to the 4890 for being ahead of the 275 in most games at resolutions targeting the price point.
Gary Key - Thursday, April 2, 2009 - link
1. The 9.4 beta was used for the HD 4890 and the chart has been updated to reflect it. The 9.3 drivers are not any faster than the 8.12 HotFix for the other AMD cards in every test I have run but Crysis Warhead with a Core 2 Quad. A few improvements have been made for CF compatibility and video playback though.2. The conclusion has been updated to clarify our thoughts between the two cards.
can - Thursday, April 2, 2009 - link
An ATI gpu with and nvidia gpu doing physx? I'm curious to see results of this kind of arrangement. Not a dedicated PCI Physx card, but on a faster bus, with a more powerful processor, as a video card. I'm wondering about pitfalls and performance and the literal looks of the application.SiliconDoc - Monday, April 6, 2009 - link
Sorry bub, you're stuck with ati, and as far as curiosity for physx - uhh... don't worry, you're not missing much, anand only got addicted to it for a bit.If you want the driver hack for it, there's a thread at techpowerup.
Some genius figured something out on it- not sure which os.
Jamahl - Thursday, April 2, 2009 - link
The conclusion in this review is awful beyond anything I have read before.How can the reviewer say the 275 is winning this one when the benchmarks clearly show dominance for the 4890 at most resolutions?
Otherwise it was a good article but the conclusion leaves a sour taste in the mouth.
SiliconDoc - Monday, April 6, 2009 - link
He could say it because he said it for ati for 6 months when ati won the top resolution. So his brain is in a "fart mode" that lied for ati for so long, he said it this time for nvidia - either that or he realized if he didn't he would look like an exposed raging red rooster fanboy.Good thing the reds started screaming NOW, after loving it for 6 months when their card was on top using the false method - because anand came in and saved the day - and changed the conclusion - for ati.
LOL
When nvidia doesn't give them a card for review again, it will be "them towing the line of honesty" that causes, no doubt, right ?
BWAHAHAHAAAAAAA
( you all just tell yourselves that along with our dear leaders )
erikejw - Thursday, April 2, 2009 - link
"On the NVIDIA side, we received a reference version of the GTX 275."You wish.
"since there is no 275 ASIC, NV is telling OEMs that they can make it from either a 280 or 260 board. One costs much more, and one performs better, so guess what everyone is going to use?
That isn't necessarily bad, but how NV is seeding reviewers is. They are only going to be giving out a very special run of ONLY 280 based parts.
Quite special 280 based parts at that. Reviewers beware, what you are getting is not what you can buy."
http://www.theinquirer.net/inquirer/news/599/10515...">http://www.theinquirer.net/inquirer/new...ia-hoodw...
bill3 - Thursday, April 2, 2009 - link
A lot of people seem to be crying about lack of temp, power consumption, oc, and fan noise numbers..while I agree in a stand alone review these are glaring omissions, the fact is theres a dozen reviews around the web where you can get that info in triplicate. I would much rather have the insight on CUDA and PHysx!I mean, people act like the internet isnt free and we all arent a google search/mouse click away from that type of info! Geez.
That said, I suppose reviews must be treated as "stand alone", however artificial a construct it may be. However if theres anything thats easily forgivable to be left out it's simple data numbers that can be found at a thousand other places. Which is exactly what temp, oc, etc are. I already know those numbers from a ton of other reviews. These people whining in the comments act like Anand is the only hardware review site there is. I would think if anybody was truly interested in laying out 250 to purchase one of these theyd be looking at more than one review!
SkullOne - Thursday, April 2, 2009 - link
I second the question about why did you use Catalyst 8.12 Hotfix? Other sites are using what appears to be an Beta Catalyst 9.4 driver so is your listing of Catalyst 8.12 a misprint?Also why do you care if AMD sent you an overclocked version? The HD4890 is directly targeted at the overclocking enthusiasts which is a realm that AMD has ignored up until now while NV embraced it.
The HD4890 has already been taken to 1+GHz on it's GPU and up to 4.8GHz on it's memory on other sites. That by far makes it the better buy.
SkullOne - Thursday, April 2, 2009 - link
Forgot to mention that by having this extremely overclockable card AMD has opened up another entire SKU for themselves by selling "OC" cards with the 4890.