AMD's Radeon HD 5870: Bringing About the Next Generation Of GPUsby Ryan Smith on September 23, 2009 9:00 AM EST
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Sometimes a surprise is nice. Other times it’s nice for things to go as planned for once.
Compared to the HD 4800 series launch, AMD’s launch of the HD 5800 series today is going to fall into the latter category. There are no last-minute announcements or pricing games, or NDAs that get rolled back unexpectedly. Today’s launch is about as normal as a new GPU launch can get.
However with the lack of last-minute surprises, it becomes harder to keep things under wraps. When details of a product launch are announced well ahead of time, inevitably someone on the inside can’t help but leak the details of what’s going on. The result is that what we have to discuss today isn’t going to come as a great surprise for some of you.
As early as a week ago the top thread on our video forums had the complete and correct specifications for the HD 5800 series. So if you’ve been peaking at what’s coming down the pipe (naughty naughty) then much of this is going to be a confirmation of what you already know.
3 months ago AMD announced the Evergreen family of GPUs, AMD’s new line of DirectX11 based GPUs. 2 weeks ago we got our first briefing on the members of the Evergreen family, and AMD publically announced their Eyefinity technology running on the then-unnamed Radeon HD 5870. Today finally marks the start of the Evergreen launch, with cards based on the first chip, codename Cypress, being released. Out of Cypress comes two cards: The Radeon HD 5870, and the Radeon HD 5850.
|ATI Radeon HD 5870||ATI Radeon HD 5850||ATI Radeon HD 4890||ATI Radeon HD 4870|
|Memory Clock||1.2GHz (4.8GHz data rate) GDDR5||1GHz (4GHz data rate) GDDR5||975MHz (3900MHz data rate) GDDR5||900MHz (3600MHz data rate) GDDR5|
|Memory Bus Width||256-bit||256-bit||256-bit||256-bit|
|Manufacturing Process||TSMC 40nm||TSMC 40nm||TSMC 55nm||TSMC 55nm|
So what’s Cypress in a nutshell? It’s a RV790 (Radeon HD 4890) with virtually everything doubled, given the additional hardware needed to meet the DirectX 11 specifications, with new features such as Eyefinity and angle independent anisotropic filtering packed in, lower idle power usage, and fabricated on TSMC’s 40nm process. Beyond that Cypress is a direct evolution/refinement of the RV7xx, and closely resembles its ancestor in design and internal workings.
The leader of the Evergreen family is the Radeon HD 5870, which will be AMD’s new powerhouse card. The 5870 features 1600 stream processors divided among 20 SIMDs, 80 texture units, and 32 ROPs, with 1GB of GDDR5 on-board connected to a 256bit memory bus. The 5870 is clocked at 850MHz for the core clock, and 1.2GHz (4.8GHz effective) for the memory, giving it a maximum compute performance of 2.72 teraflops. Load power is 188W, and idle power is a tiny 27W. It is launching at a MSRP of $379.
Below that we have the 5850 (which we will not be reviewing today), which is a slightly cut-down version of the 5870. Here we have 1440 stream processors divided among 18 SIMDs, 72 texture units, and the same 32 ROPs, with the same 256bit memory bus. The 5850 is clocked at 725Mhz for the core, and 1Ghz for the memory, giving it a maximum compute performance of 2.09 TFLOPS. With the disabled units, load power is slightly reduced to 170W, and it has the same 27W idle power. AMD expects the 5850 to perform at approximately 80% the performance level of the 5870, and is pricing it at $259.
Availability is going to be an issue, so we may as well get the subject out of the way. While today is a hard launch, it’s not quite as hard of a launch as we would like to see. AMD is launching the 5800 series with Dell, so it shouldn't come as a surprise if Dell has cards when e-tailers don't.
The situation with general availability is murky at best. The first thing we heard was that there may be a week of lag, but as of today AMD is telling us that they expect e-tailers to have 5870 cards on the 23rd, and 5850 cards next week. In any case whatever cards do make it in the channel are going to be in short supply, which matches the overall vibe we’re getting from AMD that supplies are going to be tight initially compared to the demand. So even after the first few days it may be hard to get a card. Given a tight supply we’ll be surprised if prices stick to the MSRP, and we’re likely to see e-tailers charge a price premium in the first days. Depending on just how high the demand is, this may mean it’ll take a while for prices to fall down to their MSRPs and for AMD to completely clear the backlog of demand for these cards.
Update: As of 5am EDT, we have seen the availability of 5870s come and go. Newegg had some in stock, but they have since sold out. So indeed AMD did make the hard launch (which we're always glad to see), but it looks like our concerns about a limited supply are proving to be true.
Finally, we asked AMD about the current TSMC 40nm situation, and they have told us that they are happy with it. Our concern was that problems at TSMC (specifically: yield) would be a holdup in getting more cards out there, but this does not look to be the case. However given the low supply of the cards compared to where AMD expects the supply to be, TSMC’s total 40nm capacity may not be to AMD’s liking.
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Scali - Thursday, October 1, 2009 - linkHere's a screenshot of my 8800GTS320 getting almost 49 fps when I overclock it:
So you see why I think 47 fps for a GTX285 is weird. It should easily beat the 72 fps of the HD5870. Even an 8800Ultra might get close to that number.
mapesdhs - Tuesday, September 29, 2009 - link
I sincerely nope not as we need the competition. See:
Johnwo - Monday, September 28, 2009 - linkso wait, can this card play Crysis?
vsl2020 - Sunday, September 27, 2009 - linkAMD only introducing new things which merely would make yur frap fps go 1000 and thats it.....no new good or interesting features such as what nvidia did with physx/3d Stereoscopic or similar that would convince me thats the way to the future...
why should I need to buy a new dx11gpu only can do 1000fps...I would still luv my 260+ and 60fps in batman arkhum or other games which supported phsyx or similar...AMD just bring us back to the stone age race ..who has the higher fps race......
Jamahl - Tuesday, September 29, 2009 - linkdid you even read the review? what about eyefinity, you know a good way to use up those 1000fps by adding more screens?
you can be stuck with your 260, you aren't really gaming unless you are gaming on eyefinity.
Zool - Monday, September 28, 2009 - linkActualy the delaying of nvidia dx11 card will make introducing new things harder. DX11 and OpenCL means enough that u can forget nvidias physx. At least with open platform dewelopers could finaly merge gpu and cpu code and make some more usefull things than improwed water splashing,unrealistic glass shatering and curtains which just run on top of the code and act as some kind of postprocessing + efects just to maintain compatibility.(miles away from the nvidia demos)
And also dx11 compute shader can make these things.
RNViper - Sunday, September 27, 2009 - linkHey Guys
Need Eyefinity a Nativ DisplayPort TFT?
pawaniitr - Sunday, September 27, 2009 - linkmaybe a 2 GiB memory will help this card at highest resolutions
waiting for that version
Troll Trolling - Saturday, September 26, 2009 - linkI think you guys from anandtech could do an article explaining why the new Radeons don't don't double performance, even with doubled specs.
It happened too with the HD 4870, it had more than doubled everything (except bandwidht, that was 80% higher) and was not close from double performance.
SiliconDoc - Saturday, September 26, 2009 - linkPS - The bandwidth is not doubled.
124GB/sec to 153GB/sec, nowhere near an 80% increasse, let alone, virtually double.