GPU Comparison
RADEON
AMD Radeon HD 6850 X2
CORE STATE
Barts
VRAM
2 GB
CLOCK SPEED
—
TDP
254 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
GEFORCE
GeForce GTX 570
CORE STATE
GF110
VRAM
1280 MB
CLOCK SPEED
—
TDP
219 W
BUS WIDTH
320 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
GTX 570
Core Specs
Shading Units
960
480
-50.0%
Shaders
960
480
-50.0%
TMUs
48
60
+25.0%
ROPs
32
40
+25.0%
Compute Units
12
—
SM Count
—
15
Clocks
GPU Clock
800 MHz
732 MHz
Shader Clock
—
1464 MHz
Memory Clock
1050 MHz
4.2 Gbps effective
950 MHz
3.8 Gbps effective
Memory
Memory Size
2 GB
1280 MB
VRAM (MB)
2,048
1,280
-37.5%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
320 bit
Bandwidth
134.4 GB/s
152.0 GB/s
Cache
L1 Cache
8 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
640 KB
Performance
Pixel Rate
25.60 GPixel/s
21.96 GPixel/s
Texture Rate
38.40 GTexel/s
43.92 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
1,405.4 GFLOPS
FP64 (TFLOPS)
—
175.7 GFLOPS (1:8)
Power
TDP
254 W
219 W
TDP (W)
254
219
-13.8%
Suggested PSU
600 W
550 W
Power Connectors
2x 8-pin
2x 6-pin
Architecture
Architecture
TeraScale 2
Fermi 2.0
GPU Name
Barts
GF110
Generation
Northern Islands
(HD 6800)
GeForce 500
Process Size
40 nm
40 nm
Transistors
1,700 million
3,000 million
Die Size
255 mm²
520 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
5.8M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
OpenCL
1.2
1.1
CUDA
—
2.0
Shader Model
5.0
5.1
Physical
Slot Width
Dual-slot
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
2x DVI1x mini-HDMI 1.3a
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Other
Launch Price
—
349 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 400
Successor
Southern Islands
GeForce 600