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 Vega 20
CORE STATE
Vega 12
VRAM
4 GB
CLOCK SPEED
1283 MHz
TDP
100 W
BUS WIDTH
1024 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
Pro Vega 20
Core Specs
Shading Units
1,408
1,280
-9.1%
Shaders
1,408
1,280
-9.1%
TMUs
88
80
-9.1%
ROPs
32
32
0.0%
Compute Units
22
20
-9.1%
Clocks
Base Clock
—
815 MHz
Boost Clock
—
1283 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
740 MHz
1480 Mbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
HBM2
Memory Bus
256 bit
1024 bit
Bandwidth
160.0 GB/s
189.4 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Performance
Pixel Rate
25.60 GPixel/s
41.06 GPixel/s
Texture Rate
70.40 GTexel/s
102.6 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
3.284 TFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
205.3 GFLOPS (1:16)
FP16 (TFLOPS)
—
6.569 TFLOPS (2:1)
Power
TDP
200 W
100 W
TDP (W)
200
100
-50.0%
Suggested PSU
550 W
—
Power Connectors
2x 6-pin
—
Architecture
Architecture
TeraScale 3
GCN 5.0
GPU Name
Cayman
Vega 12
Generation
Northern Islands
(HD 6900)
Radeon Pro Mac
(Vega Series)
Process Size
40 nm
14 nm
Transistors
2,640 million
—
Die Size
389 mm²
—
Foundry
TSMC
GlobalFoundries
Density
6.8M / mm²
—
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.3
OpenCL
1.2
2.1
Shader Model
5.0
6.0
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
PCIe 3.0 x16
Other
Launch Price
299 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—