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 R9 M395X
CORE STATE
Amethyst
VRAM
8 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
R9 M395X
Core Specs
Shading Units
1,408
2,048
+45.5%
Shaders
1,408
2,048
+45.5%
TMUs
88
128
+45.5%
ROPs
32
32
0.0%
Compute Units
22
32
+45.5%
Clocks
GPU Clock
800 MHz
723 MHz
Memory Clock
1250 MHz
5 Gbps effective
1250 MHz
5 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
160.0 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
25.60 GPixel/s
23.14 GPixel/s
Texture Rate
70.40 GTexel/s
92.54 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
2.961 TFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
185.1 GFLOPS (1:16)
FP16 (TFLOPS)
—
2.961 TFLOPS (1:1)
Power
TDP
200 W
75 W
TDP (W)
200
75
-62.5%
Suggested PSU
550 W
—
Power Connectors
2x 6-pin
None
Architecture
Architecture
TeraScale 3
GCN 3.0
GPU Name
Cayman
Amethyst
Generation
Northern Islands
(HD 6900)
Gem System
(R9 M300)
Process Size
40 nm
28 nm
Transistors
2,640 million
5,000 million
Die Size
389 mm²
366 mm²
Foundry
TSMC
TSMC
Density
6.8M / mm²
13.7M / 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
MXM Module
Length
286 mm
11.3 inches
—
Height
126 mm
5 inches
—
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
299 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
Solar System
Successor
Southern Islands
Polaris Mobile