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
Final Words
NVIDIA is competitive at this new price point of $250 depending on what resolution you look at. We also see some improvement from NVIDIA's new 185 series driver and get a new feature to play with in the form of Ambient Occlusion. We did look at PhysX and CUDA again, and, while we may be interested in what is made possible by them, there is still a stark lack of compelling content that takes advantage of these technologies. We can't recommend prioritizing PhysX and CUDA over performance, and performance is where a GPU needs to compete. Luckily for NVIDIA, the GTX 275 does.
The fact that its worst-case performance is still better than the GTX 260 core 216 and in the best case, it can hit that of the GTX 280 was a plus for the GTX 275. It often posted performance more in line with its bigger brothers than a $50+ cheaper part. This is pretty sweet for a $250 card, especially as many games these days rely very heavily on shader performance. The GeForce GTX 275 is a good fit for this price point, and is a good option. But then there's the Radeon HD 4890.
The 4890, basically a tweaked and overclocked 4870, does improve performance over the 4870 1GB and puts up good competition for the GTX 275. On a pure performance level the 4890 and GTX 275 trade blows at different resolutions. The 4890 tends to look better at lower resolutions while the GTX 275 is more competitive at high resolutions. At 1680 x 1050 and 1920 x 1200 the 4890 is nearly undefeated. At 2560 x 1600, it seems to be pretty much a wash between the two cards.
At the same time, there are other questions, like that of availability. With these parts performing so similarly, and price being pretty well equal, the fact that AMD parts can be bought starting today and we have to wait for the NVIDIA parts is an advantage for AMD. However, we have to factor in the fact that AMD driver support doesn't have the best track record as of late for new game titles. Add in the fact that NVIDIA's developer relations seem more effective than AMD's could mean more titles that run better on NVIDIA hardware in the future. So what to go with? Really it depends on what resolutions you're targeting and what the prices end up being. If you've got a 30" display then either card will work, it's just up to your preference and the items we talked about earlier. If you've got a 24" or smaller display (1920x1200 or below), then the Radeon HD 4890 is the card for you.
AMD tells us that most retailers will feature mail in rebates of $20, a program which was apparently underwritten by AMD. Could AMD have worried they weren't coming in at high enough performance late in the game and decided to try and throw an extra incentive in there? Either way, not everyone likes a mail in rebate. I much prefer the instant variety and mail-in-rebate offers do not make decisions for me. We still compare products based on their MSRP (which is likely the price they'll be back at once the rebate goes away). This is true for both AMD and NVIDIA parts.
There will also be overclocked variants of the GTX 275 to compete with the overclocked variants from AMD. The overclock on the AMD hardware is fairly modest, but does make a difference and the same holds true for the GTX 275 products in early testing. We'll have to take a look at how such parts compare in the future along with SLI and CrossFire. In the meantime, we have another interesting battle at the $250 price point.
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evilsopure - Thursday, April 2, 2009 - link
Update: I guess Anand was making his updates while I was making my post, so the "marginal leader at this new price point of $250" line is gone and the Final Words actually now reflect my own personal conclusion above.Anand Lal Shimpi - Thursday, April 2, 2009 - link
I've updated the conclusion, we agree :)-A
SiliconDoc - Monday, April 6, 2009 - link
You agree now that NVidia has moved their driver to the 2650 rez to win, since for months on end, you WHINED about NVidia not winning at the highest rez, even though it took everyting lower.So of COURSE, now is the time to claim 2650 doesn't matter much, and suddenly ROOT for RED at lower resolutions.
It Nvidia screws you out of cards again, I certainly won't be surprised, because you definitely deserve it.
Thanks anyway for changing Derek's 6 month plus long mindset where only the highest resolution mattered, as he had been ranting and red raving how wonderful they were.
That is EXACTLY WHY his brain FARTED, and he declared NVidia the top dog - it's how he's been doing it for MONTHS.
So good job there, you BONEHEAD - you finally caught the bias, just when the red rooster cards FAILED at that resolution.
Look in the mirror - DUMMY - maybe you can figure it out.
7Enigma - Thursday, April 2, 2009 - link
Check the article again. Anand edited it and it is now very clear and concise.7Enigma - Thursday, April 2, 2009 - link
Bah, internet lag. Ya got there first.... :)sublifer - Thursday, April 2, 2009 - link
As I predicted elsewhere, they probably should have named this new card the GTX 281. In almost every single benchmark and resolution it beats the 280. In one case it even beat the 285 somehow./Gripe
That said, Go AMD! I wanna check other sites and see if they benched with the card highly over-clocked. One site got 950 core and 1150 memory easily but they didn't include it on the graphs :(
Anand Lal Shimpi - Thursday, April 2, 2009 - link
Hey guys, I just wanted to chime in with a few fixes:1) I believe Derek used the beta Catalyst driver that ATI gave us with the 4890, not the 8.12 hotfix. I updated the table to reflect this.
2) Power consumption data is now in the article as well, 2nd to last page.
3) I've also updated the conclusion to better reflect the data. What Derek was trying to say is that the GTX 275 vs. 4890 is more of a wash at 2560 x 1600, which it is. At lower than 2560 x 1600 resolutions, the 4890 is the clear winner, losing only a single test.
Thank you for all the responses :)
Take care,
Anand
7Enigma - Thursday, April 2, 2009 - link
Thank you Anand for the update and the article changes. I think that will quell most of the comments so far (mine included).Could you possibly comment on the temps posted earlier in the comments section? My question is whether there are significant changes with the fan/heatsink between the stock 4870 and the 4890. The idle and load temps of the 4890 are much lower, especially when the higher frequency is taken into consideration.
Also a request to describe the differences between the 4890 and the 4870 (several comments allude to a respin that would account for the higher clocks, lower temp, different die size).
Thank you again for all of your hard work (both of you).
Warren21 - Thursday, April 2, 2009 - link
Yeah, I would also second a closer comparison between RV790 and RV770, or at least mention it. It's got new power phases, different VRM (7-phase vs 5-phase respectively), slightly redesigned core (AT did mention this) and features a revised HS/F.VooDooAddict - Thursday, April 2, 2009 - link
I was very happy to see the PhysX details. I'd started worrying I might be missing out with my 4870. It's clear now that I'm not missing out on PhysX, but might be missing out on some great encoding performance wiht CUDA.I'll be looking forward to your SLI / Crossfire followup. Hoping to see some details about peformance with ultra high Anti-Aliasing that's only available with SLI/Crossfire. I used to run Two 4850s and enjoyed the high-end Edge Antialiasing. Unfortunetly the pair of 4850's were a too much heat in a tiny shuttle case so I had to switch out to a 4870.
Your review reinforced something that I'd been feeling about the 4800s. There isn't much to complain about when running 1920x1200 or lower with modest AA. They seem well positioned for most gamers out there. For those out there with 30" screens (or lusting after them, like myself)... while the GTX280/285 has a solid edge, one really needs SLI/Crossfire to drive 30" well.