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 GT 545
CORE STATE
GF116
VRAM
1536 MB
CLOCK SPEED
—
TDP
70 W
BUS WIDTH
192 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
GT 545
Core Specs
Shading Units
960
144
-85.0%
Shaders
960
144
-85.0%
TMUs
48
24
-50.0%
ROPs
32
16
-50.0%
Compute Units
12
—
SM Count
—
3
Clocks
GPU Clock
800 MHz
720 MHz
Shader Clock
—
1440 MHz
Memory Clock
1050 MHz
4.2 Gbps effective
800 MHz
1600 Mbps effective
Memory
Memory Size
2 GB
1536 MB
VRAM (MB)
2,048
1,536
-25.0%
Memory Type
GDDR5
DDR3
Memory Bus
256 bit
192 bit
Bandwidth
134.4 GB/s
38.40 GB/s
Cache
L1 Cache
8 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
384 KB
Performance
Pixel Rate
25.60 GPixel/s
4.320 GPixel/s
Texture Rate
38.40 GTexel/s
17.28 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
414.7 GFLOPS
FP64 (TFLOPS)
—
34.56 GFLOPS (1:12)
Power
TDP
254 W
70 W
TDP (W)
254
70
-72.4%
Suggested PSU
600 W
250 W
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
Fermi 2.0
GPU Name
Barts
GF116
Generation
Northern Islands
(HD 6800)
GeForce 500
Process Size
40 nm
40 nm
Transistors
1,700 million
1,170 million
Die Size
255 mm²
238 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
4.9M / 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
Single-slot
Length
—
145 mm
5.7 inches
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
1x DVI1x HDMI 1.3a1x VGA
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Other
Launch Price
—
149 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 400
Successor
Southern Islands
GeForce 600