AMD's Pitcairn GPU detailed (78xx series)(update)
As per posted on fud:
AMD's upcoming Pitcairn GPU detailed
"AMD is planning to launch its mid-range HD 7800 series cards based on the Pitcairn GPU sometime in March, or according to our sources, the first week of March. There will surely be a card or two at this year's Cebit show that kicks off on March 6. Expreview managed to score some details regarding the Pitcairn cards and it appears that we are looking at three different SKUs, the Radeon HD 7870, and two Radeon HD 7850 cards with either 1 or 2GB of memory.
The specifications of the fully enabled Pitcain based HD 7870 include 22 Graphics CoreNext compute units, or simply 1408 stream processors, 88 TMUs and 24 ROPs. The Radeon HD 7870 will ship with 2GB of GDDR5 memory paired up with a 256-bit memory interface. The HD 7870, at least the reference ones, should be set to work at 950MHz for the GPU and 1375MHz (5.5GHz effective) for memory.
The Radeon HD 7850 on the other hand has two GCN CUs less, for a total of 1280 stream processors, 80 TMUs and 24 ROPs. This one will be available with either 1 or 2GB of GDDR5 memory paired up with the same 256-bit memory interface. The HD 7850 should end up clocked at 900MHz for the GPU and 1250MHz (5.0GHz effective) for the memory."
According to the new leaked info from here:
AMD Radeon HD7800 "Pitcairn XT/Pro" Specifications Leaked
" The Pitcairn XT which features 1408 stream processors, 88 texture units and 24 ROPís, A 2GB GDDR5 memory (256-bit). The Core clock is maintained at 950Mhz and 5500Mhz for the memory. The HD7870 would retail for $299.
AMD Radeon HD 7870
AMD Radeon HD 7850
AMD Radeon HD 7890
at least the pricing seems better for the 78xx series. i just have to wait a few months for the 7870 to hit the price of the 6870 when i bought mine last march for 180.
dear lordy....AMD is going to release their entire stack again before nvidia puts something out?
Hopefully the 78xx will have better bang for buck at release then the 7770 (though I am sure pricing on the 7770 will find its place with some time). Its seems that AMD may actually get this whole lineup out before Nvidia releases any.
I wonder how the 7850 1GB will compare with the 6950... I mean, the winner is obvious, but percentage wise.
Remember, the "winner" was supposed to be obvious when the HD 7770 was launched too....
Looking like another step back, or at the least at side step. My GTX 480 is looking like it will beat all of these cards so I will be waiting for Nvidia's new high end cards to be released.
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