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The Radeon HD 3000 and HD 4000 series
My first good Ati cards were a 2nd hand Sapphire HD3870 (PCIe) and a third hand Sapphire HD3850 (AGP). As they are made using a 55 nm process they are comparable to the nVidia Geforce GT200 series, as can my son's HD 4870 -a lucky dustbin find. My HD 4770 is even made on a 40 nm process, like the Fermi generation. Unfortunately the support for these fine cards in the latest OS-es is lacking, amongst others due to the lack of proper OpenCL support. We will miss the fine DP performance they offered.
Model/Type |
GPU |
Fab in nm |
Shaders |
TMA |
ROP |
GFLOP SP |
GFLOP DP |
TDP |
Gflop(SP)
/Watt |
Gflop(DP)
/Watt |
Radeon HD 3000 Series |
|
|
|
|
|
|
1/5 of SP |
|
|
|
Radeon HD 3850 |
RV670 PRO |
55 |
320 |
16 |
16 |
428 |
86 |
75 |
5.71 |
1.14 |
Radeon HD 3870 |
RV670 XT |
55 |
320 |
16 |
16 |
497 |
99 |
106 |
4.69 |
0.94 |
Radeon HD 4000 Series |
|
|
|
|
|
|
1/5 of SP |
|
|
|
Radeon HD 4770 |
RV740 |
40 |
640 |
32 |
16 |
960 |
192 |
80 |
12.00 |
2.40 |
Radeon HD 4870 |
RV770 XT |
55 |
800 |
40 |
16 |
1200 |
240 |
160 |
7.50 |
1.50 |
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I hope the 6000 series support does not drop off too soon as well. These ATI cards are steady work horses despite no longer being up to much graphically in comparison to newer models.
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