Thursday, October 8th 2009

Radeon HD 5700 Series Specs Surface

The beans are spilled on the final specifications of AMD's "Juniper" mid-range GPU architecture, and the two SKUs based on it, namely the ATI Radeon HD 5770 and Radeon HD 5750. Leaked alleged company slides on XtremeSystems Forums, reveal exactly how Juniper is a 50% downsizing of Cypress' machinery, in having half of nearly all its vital-statistics, if you may. Juniper features 10 SIMD engines physically, amounting to 800 stream processors. It holds 40 texture memory units (TMUs), and 16 raster operation units (ROPs). With a 128-bit memory interface churning out up to 76.8 GB/s of memory bandwidth by utilizing 4.8 GT/s GDDR5 memory chips, the fact that Juniper is half of what Cypress stands for specs-wise, becomes clear.

In the next two slides are pictured and detailed the two SKUs based on the GPU. The ATI Radeon HD 5770 is the top-end implementation, which makes use of all the components present on the GPU. With a core clock-speed of 850 MHz, and memory speed of 1200 MHz, the GPU churns out a shader compute power of 1.36 TFLOPs. The idle and max board powers are rated by AMD at 18W and 108W, respectively. It becomes clear that AMD is eying the US $150 price point with this part. The Radeon HD 5750 on the other hand, has one SIMD engine disabled, and eds up with 720 available stream processors. It comes with 1 GB or 512 MB of GDDR5 memory, and clock speeds of 700 MHz core, and 1150 MHz memory (4.6 GT/s). With these, the Radeon HD 5750 manages a shader compute power figure of 1.008 TFLOPs. The rated board power consumption figures have also come down on this one, with 16W idle, and 86W max. This one targets the $109 (512 MB) and $129 (1 GB) price points. Both accelerators are DirectX 11 compliant, and support ATI Eyefinity technology supporting up to three 2560 x 1600 pixel display heads. According to the slides, they should be unveiled this Tuesday the 13th.
Source: XtremeSystems Forums
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33 Comments on Radeon HD 5700 Series Specs Surface

#26
inferKNOX
DaCYeah.... well... actually if the pull something like HD 4550 power consumption... wow... it will be nasty! :laugh:
Which is 6W idle and 19w max.
Lol, next the cards will end up supplying the system w/ power instead of taking from it!:laugh:
Posted on Reply
#27
Polarman
The idle and max board powers are rated by AMD at 18W and 108W
Very nice indeed, actually lower than a 4850 with more memory bandwidth. 2 of these in crossfire would probably eat less power than my single 4890.
Posted on Reply
#28
I see SPY!
Those power consumption numbers are awesome! Anyone knows how much the 5850 and 5870 downclock when not in games?
Maybe by using Rivatuner/ATT we'll be able to shave off a few more watts from the idle consumption... :D
Posted on Reply
#29
Ghiltanas
Imsochoboit certanly wont do the performance of a 4890, but they outperform a 4850 by far !

And the price seems fair too :)
why not? it has similar specs 5770 and 4890
Posted on Reply
#30
KainXS
Ghiltanaswhy not? it has similar specs 5770 and 4890
the memory bandwidth limits it
Posted on Reply
#31
Ghiltanas
KainXSthe memory bandwidth limits it
i thought about it..probably at high resolution the 5770's bw limits too much, but with normal resolutions (1680*1050 or less) this shouldn't happen,or i'mwrong?
Posted on Reply
#32
aj28
DaCYeah.... well... actually if the pull something like HD 4550 power consumption... wow... it will be nasty! :laugh:
Which is 6W idle and 19w max.
Remember, 4550 only has 80SP... The low-end will definitely be a good HTPC buy once it comes around, what with all the new connectivity options and undoubtably improved performance.
Posted on Reply
#33
jessicafae
retail prices seem a little high, but that is probably to make sure they can clear out remaining 4770, 4850, 4870 stock before the 5750/5770 go into discount mode. Looks like great replacement models, but I will be happy with my 4890 for quite some time.
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