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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SiliconDoc - Monday, April 6, 2009 - link
Yes, exactly why added value of CUDA, PhysX, badaboom, vReveal, the game profiles ready in nv panel, the forced SLI, the ambient occlusion games and their MODS ( se back a page or two in comments) - all MATTER to a lot gamers.Let's not forget card size for htpc'ers - heat, dissipation, H.264 etc.
Just the frames matter here just for ati - formerly at 2560x when ati had that crown, now of course, just for lower resolutions - the most important suddenly to the same reviewers, when ati is stuck down there.
Yeah, PATHETIC describes the dismissal of added values.
Flunk - Thursday, April 2, 2009 - link
I have a CUDA-supporting GPU (8800GTS) and I have rarely used it. Other than to run the CUDA version of folding at home (there is also an Ati Stream version) or to look at the preitty effects in a few games. I don't really think these effects are particularly worthwhile and unless the industry comes together and supports a standard like OpenCL I don't see GPU-based processing becoming important to most uses.SiliconDoc - Monday, April 6, 2009 - link
Here's a clue as to why you're already WRONG.Most "gpu users" use NVidia. DUH.
So while you're whistling in the dark, it's already past that time when your line of crap has any basis in reality.
It takes a gigantic red fanboy brain fart to state otherwise.
Oh well, since when did facts matter when the red plague is rampant?
Hrel - Thursday, April 2, 2009 - link
You can get an Nvidia GPU that runs CUDA and Badaboom for $50; the 9600GT. End of page 13.Hrel - Thursday, April 2, 2009 - link
You can get an Nvidia GPU that runs CUDA and Badaboom for $50; the 9600GT.punjabiplaya - Thursday, April 2, 2009 - link
Just need to some stable OC vs OC results!SiliconDoc - Monday, April 6, 2009 - link
anand doesn't do the overclocked part comparison of the videocard wars - BUT DON 'T worry - a red rooster exception with charts and babbling is no doubt coming down the pike.Keep begging, then they can "respond to customer demands". lol
Oh man, this is going to be fun.
I suggest they start with the gainward gtx260 overclock goes like hell, that whips every single 4870 1g XXX ever made. Sound good ?
Griswold - Thursday, April 2, 2009 - link
What I'm really curious about because neither of the cards is what I'm interested in buying, but I like to follow both companies business strategies:Does nvidia really lose money or is looking at a fat zero on the bottom line with this card?
SiliconDoc - Monday, April 6, 2009 - link
Uhh ati is losing a billion a year.If you want card specifics, that's probably difficult to calculate - and loss leaders are nothing new in business - in fact that's what successful businesses use as a sales tool. Seems ATI has taken it a bit too far and made every card they sell a loss leader, hence their billions in the hole.
Now as far as the NVidia card in question, even if Obama takes over the mean greedy green machine - he and his cabal "won't release the information because it's just not fair and may cause those not really needing help at the money window to be expsoed".
So no, you won't be finding out.
The problem is anyway, if a certain card is a loss leader, they calculate how much other business it brings in, and that makes it a WINNER - and that's the idea.
flashbacck - Thursday, April 2, 2009 - link
The physx/cuda section was interesting, although it sounded a bit... whiny.I would LOVE it if someone would write an article about all the PR and marketing shenanigans that go on with reviewers behind the scenes. It'll never happen because it would kill any relationship the author has with the companies, but I bet it would be an eye opening read.