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.

New Drivers From NVIDIA Change The Landscape
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  • tamalero - Thursday, April 9, 2009 - link

    the 270 is a 285 nerf, so what?

    your point is?
  • SiliconDoc - Thursday, April 23, 2009 - link

    The other point is, when you've been whining about nvidia having a giant brute force core that costs too much to make, and how that gives ati a huge price and profit advantage ( even though ati has been losing a billion a year) , that when ati make a larger core and moer expensive breadboard and cooler setup standard for their rebrand, you point out the greater expense, in order to at least appear fair, and not be a red raging rooster rooter.
    Got it there bub ?
    Sure hope so.
    Next time I'll have to start charging you for tutoring and reading comprehension lessens.
  • SiliconDoc - Thursday, April 23, 2009 - link

    Uh, for you, the mentally handicapped, the point is since ati made a rebrand, call it a rebrand, especially when you've been screeching like a 2 year old about nvidia rebrands, otherwise you're a lying sack of red rooster crap, which you apparently are.
    Welcome to the club, dumb dumb.
    I hope that helps with your mental problem, your absolute inability to comprehend the simplest of points. I would like to give you credit and just claim you're being a smart aleck, but it appears you are serious and haven't got clue one. I do feel sorry for you. Must be tough being that stupid.
  • Griswold - Thursday, April 2, 2009 - link

    Just that one "rebadge" comes with 3 million extra transistors; deal with it.
  • SiliconDoc - Monday, April 6, 2009 - link

    " Because they’re so similar, the Radeon 4870 and 4890 can be combined together for mix-and-match CrossFire, just like the 4850 and 4870."

    Yep, that non rebadge. LOL
  • jtleon - Thursday, April 2, 2009 - link

    Visit:

    http://chhosting.org/index.php?topic=24.0">http://chhosting.org/index.php?topic=24.0

    To see AO applied to FEAR. Boris Vorontsov developed the directx mod long ago!
  • SiliconDoc - Monday, April 6, 2009 - link

    Oh sorry, forgot forced SLI profiles, and I don't want to fail to mention something like EVGA's early release NVidia game drivers for games on DAY ONE. lol
    Aww, red rover red rover send the crying red rooster right over.
    Did I mention ati lost a billion bucks two years in a row for amd ?
    No ?
    I guess Dewreck and anand forgot to mention the larger die, and more expensive components on the 790 ati boards will knock down "the profits" for ati. LOL Yeah, awww... we just won't mention cost when ati's goes up - another red rooster sin by omission.
    I ought to face it, there are so many, I can't even keep up anymore.
    They should get ready for NVidia stiffing them again, they certainly deserve it - although it is funny watching anand wince in text as he got addicted to Mirror's Edge - then declared "meh" for nvidia.
    lol - it's so PATHETIC.
  • tamalero - Thursday, April 9, 2009 - link

    what the hell are you talking about?
  • SiliconDoc - Thursday, April 23, 2009 - link

    You proved you can't read and comprehend properly on the former page, where I had to correct you in your attempt to whine at me - so forget it - since you can't read properly ok nummy ?
  • SiliconDoc - Monday, April 6, 2009 - link

    Ahh, thank you very much. lol
    NVIDIA wins again !
    rofl
    I'm sure the ati card buyers will just hate it...but of course they are so happy with their pathetic "only does framerates, formerly in 2560 for wins, now in lesser resolutions for the win"
    It just never ends - Cuda, PhySx, Ambient Occlusion, bababoom, the vReveal, the game presets INCLUDED in the driver, the ability to use your old 8 or 9 Nvidia card for PhysX or Cuda in a xfire board with another NVidia card for main gaming ...
    I know, NONE OF IT MATTERS !
    The red rooster fanbois hate all of that ! They prefer a few extra frames at way above playable framerates in certain resolutions depending on their fanboy perspective of the card release (formerly 2560 now just lower resolutions)- LOL that they cannot even notice unless they are gawking at the yellow fraps number while they get buzzed down in cold blood in the game.
    Ahhh, the sweet taste of victory at every turn.

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