bahareh1000
2012/09/21, 08:03
There’s a note about January 2013, I’m guessing that’s the release or paper-launch date. Furthermore, we might expect around 22% lower price in comparison to HD 7800 series.
Comparison
Radeon HD 7870
Radeon HD 8870
Diff
Radeon HD 7850
Radeon HD 8850
Diff
GPU
28nm Pitcairn XT
28nm Oland XT
-
28nm Pitcairn Pro
28nm Oland Pro
-
Transistors
2.8 billion
3.4 billion
+21%
2.8 billion
3.4 billion
+21%
Die Size
212mm2
~270mm2
+27%
212mm2
~270mm2
+27%
Base Clock
1000 MHz
1050 MHz
+5%
860 MHz
925 MHz
+7%
Boost Clock
-
1100 MHz
-
-
975 MHz
-
Primitive Rate
2prim/clk
2prim/clk
-
2prim/clk
2prim/clk
-
Computing Performance SP
2.25 TFLOPS
3.94 TFLOPS
+75%
1.76 TFLOPS
2.99 TFLOPS
+70%
Computing Performance DP
160 GFLOPS
246 GFLOPS
+60%
110 GFLOPS
187.2 GFLOPS
+70%
Texture Fillrate
80 GT/s
123.2 GT/s
+65%
55 GT/s
93.6 GT/s
+70%
Pixel Fillrate
32 GP/s
35.2 GP/s
+10%
27.5 GT/s
31.2 GP/s
+13%
Memory Bandwidth
153.6 GB/s
192 GB/s
+25%
153.6 GB/s
192 GB/s
+25%
TDP
175W
160W
-9%
130W
130W
0%
MSRP
$349
$279
-20%
$249
$199
-25%
Comparison
Radeon HD 7870
Radeon HD 8870
Diff
Radeon HD 7850
Radeon HD 8850
Diff
GPU
28nm Pitcairn XT
28nm Oland XT
-
28nm Pitcairn Pro
28nm Oland Pro
-
Transistors
2.8 billion
3.4 billion
+21%
2.8 billion
3.4 billion
+21%
Die Size
212mm2
~270mm2
+27%
212mm2
~270mm2
+27%
Base Clock
1000 MHz
1050 MHz
+5%
860 MHz
925 MHz
+7%
Boost Clock
-
1100 MHz
-
-
975 MHz
-
Primitive Rate
2prim/clk
2prim/clk
-
2prim/clk
2prim/clk
-
Computing Performance SP
2.25 TFLOPS
3.94 TFLOPS
+75%
1.76 TFLOPS
2.99 TFLOPS
+70%
Computing Performance DP
160 GFLOPS
246 GFLOPS
+60%
110 GFLOPS
187.2 GFLOPS
+70%
Texture Fillrate
80 GT/s
123.2 GT/s
+65%
55 GT/s
93.6 GT/s
+70%
Pixel Fillrate
32 GP/s
35.2 GP/s
+10%
27.5 GT/s
31.2 GP/s
+13%
Memory Bandwidth
153.6 GB/s
192 GB/s
+25%
153.6 GB/s
192 GB/s
+25%
TDP
175W
160W
-9%
130W
130W
0%
MSRP
$349
$279
-20%
$249
$199
-25%