Friday, September 11th 2009

AMD Cypress ''Radeon HD 5870'' Stripped

Here are the first pictures of the obverse side of Cypress' PCB, and the first pictures of the centre of attraction: the AMD Cypress GPU. CzechGamer dissembled two Cypress "Radeon HD 5870" cards for a quick blurrycam photo-session. The PCB shot reveals quite a bit about Cypress, particularly about the GPU.

To begin with, the GPU is AMD's overhaul on transistor counts, and a bold work of engineering on the 40 nm manufacturing process, given the kind of problems foundry partners had initially. Apparently they seem to have recovered with most of them, as AMD's AIB partners are coming up with new products based on the 40 nm RV740 GPU on a weekly basis. The package holds a "diamond-shaped" die that is angled in a way similar to RV740, RV730, or more historically, the R600. The seemingly huge die measures 338 mm² (area), and for 40 nm, it translates to "huge", and is vindicated by the transistor count of ~2.1 billion. In contrast, AMD's older flagship GPU, the RV790 holds 959 million, and NVIDIA's GT200 holds 1.4 billion.
The PCB has three distinct areas: the connectivity, processing, and VRM. To fuel the GPU is a high-grade 4 phase digital PWM power circuit, while the PCB has placeholders for an additional vGPU phase. The 8 (or 16 on the 2 GB model) memory chips, is powered by a 2 phase circuit. Power is drawn from two 6-pin PCI-Express power connectors, but there seems to be a placeholder for two more pins, i.e., to replace one of those 6-pin connectors with an 8-pin one. Bordering the GPU on two sides are the 8 GDDR5 memory chips, which AMD calls says is generation ahead of present GDDR5, and supports reference frequencies as high as 1300 MHz (2600 MHz DDR, 5.20 GHz effective). In the 2 GB variant, 8 more chips seat on the other side of the PCB. This is what perhaps, the backplate is intended to cool. On the connectivity portion of it, are the two CrossFire connectors, DisplayPort, HDMI and a cluster of two DVI-D connectors. There has been a raging debate about how adversely the small air vent would affect the card, but AMD is promising some energy efficiency breakthroughs, plus given how roomy the card is, the vent seems sufficient.

Finally, information from ArabHardware.net suggests a pricing model on three of the first SKUs based on Cypress: HD 5870 2 GB, HD 5870 1 GB, and HD 5850 1 GB. All three use the same GPU and memory standard (GDDR5), but differ in clock speeds and GPU configurations. While HD 5870 sports 1600 stream processors, 80 TMUs, and 32 ROPs, HD 5850 has 1440 stream processors, 72 TMUs, and 32 ROPs. Although 32 ROPs puzzles us for a 256-bit wide memory interface, we suspect low-level design changes that make "32 ROPs" more of an effective count than an absolute count. While HD 5870 features over 800 MHz core clock and 5.20 GHz memory, its little sibling has over 700 MHz core clock and 4.40 GHz memory. Price points expected are US $449 for Radeon HD 5870 2 GB, $399 for HD 5870 1 GB, and $299 for HD 5850. AMD is expected to announce all three models on the coming 23rd. You'll be able to find them at your favourite computer store a little later, availability is a certainty by the time you're ready to buy Windows 7. AMD's newest products will be more than ready to squat under X-mas trees all over.
Sources: Czech Gamer, Arab Hardware
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163 Comments on AMD Cypress ''Radeon HD 5870'' Stripped

#152
jessicafae
erockerI just want to be able to hook up three monitors without DisplayPort inputs on them.
Eyefinity is no longer under NDA, so we should be able to get a clear answer on this now. W1zzard?
It does look like it requires at least one DisplayPort monitor though to get 3 displays from the ATi fine print.
jessicafaeIf we look at the fine print on the bottom of the official Eyefinity page, ATi says
1) Driver version 8.66 (Catalyst 9.10) or above is required to support ATI Eyefinity technology and to enable a third display you require one panel with a DisplayPort connector.
Posted on Reply
#153
Bo_Fox
SteevoI just came
And you didn't thank me for it?!?
Posted on Reply
#154
Hayder_Master
wolfI hear that, their first 32 ROP card, it should be a beast :D

Majorly want to get my mits on a 2gb Eyefinity 5870
+1 for that i think about it from now too , or i wait to see the biggest beast 5870x2 with 4GB it will be awesome
Posted on Reply
#155
FordGT90Concept
"I go fast!1!11!1!"
erockerI just want to be able to hook up three monitors without DisplayPort inputs on them.
A lot of workstation cards (Fire/Quadro) support 4 x DVI through wiggy headers and breakout cables. XD


As far as 5870 goes, I was expecting the price to be lower. That means I'll probably be waiting until NVIDIA launches a competitive card to drive AMD's prices down. I still would like to see Larabee before upgrading though.
Posted on Reply
#156
wolf
Performance Enthusiast
SteevoI just came
phanbuey:roll: ditto.
I've been on perma-spooj since I realsied a few facts.

32 ROPS - 1600 sp's - 2GB - 6 monitors

and I JIZZ IN MY PANTS :laugh:
Posted on Reply
#157
a_ump
FordGT90ConceptA lot of workstation cards (Fire/Quadro) support 4 x DVI through wiggy headers and breakout cables. XD


As far as 5870 goes, I was expecting the price to be lower. That means I'll probably be waiting until NVIDIA launches a competitive card to drive AMD's prices down. I still would like to see Larabee before upgrading though.
no insult or anything i'm just very surprised in how much faith or w/e people have in larrabee. I mean it's taken years and years for nvidia and ATI to develope their GPU's to the performance they can manufacture, i really don't see Intel doing it their first time. I see maybe HD 4850 performance but then that's another subject for a different thread :p
Posted on Reply
#158
HossHuge
I'm assuming that the Eyefinity thingy would work with three digital projectors as well? Cause you could have 3 60+" screens. I think I would get dizzy.
Posted on Reply
#159
pantherx12
Yeah it does, I've seen a video of Left 4 Dead running on 3 projections :D

was about 10 foot by 12 foot of zombie goodness X
Posted on Reply
#160
HossHuge
pantherx12Yeah it does, I've seen a video of Left 4 Dead running on 3 projections :D

was about 10 foot by 12 foot of zombie goodness X
I would have replied earlier but I had to go and change my shorts....;)

I see this in my future...:toast:
Posted on Reply
#162
TheMailMan78
Big Member
a_umpno insult or anything i'm just very surprised in how much faith or w/e people have in larrabee. I mean it's taken years and years for nvidia and ATI to develope their GPU's to the performance they can manufacture, i really don't see Intel doing it their first time. I see maybe HD 4850 performance but then that's another subject for a different thread :p
Three words.

Intels massive budget.
Posted on Reply
#163
jessicafae
a_umpno insult or anything i'm just very surprised in how much faith or w/e people have in larrabee. I mean it's taken years and years for nvidia and ATI to develope their GPU's to the performance they can manufacture, i really don't see Intel doing it their first time. I see maybe HD 4850 performance but then that's another subject for a different thread :p
TheMailMan78Three words.

Intels massive budget.
one word .... Itanium

some ideas just don't work no matter how much money you throw at it.
"The Itanium approach … was supposed to be so terrific—until it turned out that the wished-for compilers were basically impossible to write."
—computer scientist Donald Knuth[7]

Let's hope Larabee turns out to be brilliant and changes the world for the better, but it is not a guaranteed win.
Posted on Reply
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