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 R6 M255DX
CORE STATE
Jet
VRAM
System Shared
CLOCK SPEED
855 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
R6 M255DX
Core Specs
Shading Units
1,408
320
-77.3%
Shaders
1,408
320
-77.3%
TMUs
88
20
-77.3%
ROPs
32
8
-75.0%
Compute Units
22
5
-77.3%
Clocks
Base Clock
—
780 MHz
Boost Clock
—
855 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
System Shared
Memory
Memory Size
2 GB
System Shared
VRAM (MB)
2,048
—
Memory Type
GDDR5
System Shared
Memory Bus
256 bit
System Shared
Bandwidth
160.0 GB/s
System Dependent
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
128 KB
Performance
Pixel Rate
25.60 GPixel/s
6.840 GPixel/s
Texture Rate
70.40 GTexel/s
17.10 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
547.2 GFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
34.20 GFLOPS (1:16)
Power
TDP
200 W
—
TDP (W)
200
—
Suggested PSU
550 W
—
Power Connectors
2x 6-pin
—
Architecture
Architecture
TeraScale 3
GCN 1.0
GPU Name
Cayman
Jet
Generation
Northern Islands
(HD 6900)
Gem System Hybrid
(Rx M200)
Process Size
40 nm
28 nm
Transistors
2,640 million
690 million
Die Size
389 mm²
56 mm²
Foundry
TSMC
TSMC
Density
6.8M / mm²
12.3M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_1)
OpenGL
4.4
4.6
Vulkan
—
1.2.170
OpenCL
1.2
2.1 (1.2)
Shader Model
5.0
6.5 (5.1)
Physical
Slot Width
Dual-slot
IGP
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
IGP
Other
Launch Price
299 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—