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
RADEON
Radeon Pro Duo
CORE STATE
Capsaicin
VRAM
4 GB
CLOCK SPEED
—
TDP
350 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
Pro Duo
Core Specs
Shading Units
1,408
4,096
+190.9%
Shaders
1,408
4,096
+190.9%
TMUs
88
256
+190.9%
ROPs
32
64
+100.0%
Compute Units
22
64
+190.9%
Clocks
GPU Clock
800 MHz
1000 MHz
Memory Clock
1250 MHz
5 Gbps effective
500 MHz
1000 Mbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
HBM
Memory Bus
256 bit
4096 bit
Bandwidth
160.0 GB/s
512.0 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
25.60 GPixel/s
64.00 GPixel/s
Texture Rate
70.40 GTexel/s
256.0 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
8.192 TFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
512.0 GFLOPS (1:16)
FP16 (TFLOPS)
—
8.192 TFLOPS (1:1)
Power
TDP
200 W
350 W
TDP (W)
200
350
+75.0%
Suggested PSU
550 W
750 W
Power Connectors
2x 6-pin
3x 8-pin
Architecture
Architecture
TeraScale 3
GCN 3.0
GPU Name
Cayman
Capsaicin
Generation
Northern Islands
(HD 6900)
Radeon Pro GCN
Process Size
40 nm
28 nm
Transistors
2,640 million
8,900 million
Die Size
389 mm²
596 mm²
Foundry
TSMC
TSMC
Density
6.8M / mm²
14.9M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
Vulkan
—
1.2.170
OpenCL
1.2
2.1
Shader Model
5.0
6.5
Physical
Slot Width
Dual-slot
Dual-slot
Length
286 mm
11.3 inches
277 mm
10.9 inches
Height
126 mm
5 inches
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 1.4a3x DisplayPort 1.2
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
299 USD
1,499 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
FirePro GCN
Successor
Southern Islands
Radeon Pro Polaris