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
Tesla P4
CORE STATE
GP104
VRAM
8 GB
CLOCK SPEED
1114 MHz
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
Pascal
PROCESS
16 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
Tesla P4
Core Specs
Shading Units
1,408
2,560
+81.8%
Shaders
1,408
2,560
+81.8%
TMUs
88
160
+81.8%
ROPs
32
64
+100.0%
Compute Units
22
—
SM Count
—
20
Clocks
Base Clock
—
886 MHz
Boost Clock
—
1114 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
Bandwidth
160.0 GB/s
192.3 GB/s
Cache
L1 Cache
8 KB (per CU)
48 KB (per SM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
25.60 GPixel/s
71.30 GPixel/s
Texture Rate
70.40 GTexel/s
178.2 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
5.704 TFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
178.2 GFLOPS (1:32)
FP16 (TFLOPS)
—
89.12 GFLOPS (1:64)
Power
TDP
200 W
75 W
TDP (W)
200
75
-62.5%
Suggested PSU
550 W
250 W
Power Connectors
2x 6-pin
None
Architecture
Architecture
TeraScale 3
Pascal
GPU Name
Cayman
GP104
Generation
Northern Islands
(HD 6900)
Tesla Pascal
(Pxx)
Process Size
40 nm
16 nm
Transistors
2,640 million
7,200 million
Die Size
389 mm²
314 mm²
Foundry
TSMC
TSMC
Density
6.8M / mm²
22.9M / 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
168 mm
6.6 inches
Height
126 mm
5 inches
—
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
299 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
Tesla Maxwell
Successor
Southern Islands
Tesla Volta