GPU Comparison
RADEON
AMD Radeon HD 6950
CORE STATE
Cayman
VRAM
2 GB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 3
PROCESS
40 nm
LAUNCH DATE
2010
VS
GEFORCE
Quadro P400
CORE STATE
GP107
VRAM
2 GB
CLOCK SPEED
1252 MHz
TDP
30 W
BUS WIDTH
64 bit
ARCHITECTURE
Pascal
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
Quadro P400
Core Specs
Shading Units
1,408
256
-81.8%
Shaders
1,408
256
-81.8%
TMUs
88
16
-81.8%
ROPs
32
16
-50.0%
Compute Units
22
—
SM Count
—
2
Clocks
Base Clock
—
1228 MHz
Boost Clock
—
1252 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
1002 MHz
4 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
64 bit
Bandwidth
160.0 GB/s
32.06 GB/s
Cache
L1 Cache
8 KB (per CU)
48 KB (per SM)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
25.60 GPixel/s
20.03 GPixel/s
Texture Rate
70.40 GTexel/s
20.03 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
641.0 GFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
20.03 GFLOPS (1:32)
FP16 (TFLOPS)
—
10.02 GFLOPS (1:64)
Power
TDP
200 W
30 W
TDP (W)
200
30
-85.0%
Suggested PSU
550 W
200 W
Power Connectors
2x 6-pin
None
Architecture
Architecture
TeraScale 3
Pascal
GPU Name
Cayman
GP107
Generation
Northern Islands
(HD 6900)
Quadro Pascal
(Px000)
Process Size
40 nm
14 nm
Transistors
2,640 million
3,300 million
Die Size
389 mm²
132 mm²
Foundry
TSMC
Samsung
Density
6.8M / mm²
25.0M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
CUDA
—
6.1
Shader Model
5.0
6.8
Physical
Slot Width
Dual-slot
Single-slot
Length
286 mm
11.3 inches
150 mm
5.9 inches
Height
126 mm
5 inches
69 mm
2.7 inches
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
3x mini-DisplayPort 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
299 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
Quadro Maxwell
Successor
Southern Islands
Quadro Volta