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 580M
CORE STATE
GF114
VRAM
2 GB
CLOCK SPEED
—
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
GTX 580M
Core Specs
Shading Units
960
384
-60.0%
Shaders
960
384
-60.0%
TMUs
48
64
+33.3%
ROPs
32
32
0.0%
Compute Units
12
—
SM Count
—
8
Clocks
GPU Clock
800 MHz
620 MHz
Shader Clock
—
1240 MHz
Memory Clock
1050 MHz
4.2 Gbps effective
750 MHz
3 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
Bandwidth
134.4 GB/s
96.00 GB/s
Cache
L1 Cache
8 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
25.60 GPixel/s
9.920 GPixel/s
Texture Rate
38.40 GTexel/s
39.68 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
952.3 GFLOPS
FP64 (TFLOPS)
—
79.36 GFLOPS (1:12)
Power
TDP
254 W
100 W
TDP (W)
254
100
-60.6%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
Fermi 2.0
GPU Name
Barts
GF114
Generation
Northern Islands
(HD 6800)
GeForce 500M
Process Size
40 nm
40 nm
Transistors
1,700 million
1,950 million
Die Size
255 mm²
332 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
5.9M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
OpenCL
1.2
1.1
CUDA
—
2.1
Shader Model
5.0
5.1
Physical
Slot Width
Dual-slot
MXM Module
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
MXM-B (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 400M
Successor
Southern Islands
GeForce 600M