Radeon HD 7970M X2 vs Radeon HD 7950M

Radeon HD 7970M X2
Radeon HD 7950M
2x 1280 Shaders
2x 2GB GDDR5
850MHz
1280 Shaders
2GB GDDR5
700MHz
FP32
4.35 TFLOPS
FP32
1.79 TFLOPS
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Form Factor
MXM-B
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Form Factor
MXM-B
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TDP
75W
TDP
75W
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GB5 OpenCL - N/A
0%
GB5 OpenCL - N/A
0%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal - N/A
0%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal - N/A
0%
Manufacturer
AMD
Manufacturer
AMD
Chip Designer
AMD
Chip Designer
AMD
Architecture
GCN 1
Architecture
GCN 1
Family
Radeon HD 7000
Family
Radeon HD 7000
Codename
Pitcairn
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Variant
Wimbledon XT
Codename
Pitcairn
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Variant
Wimbledon XT
Market Segment
Laptop
Market Segment
Laptop
Release Date
4/24/2012
Release Date
4/24/2012
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
28nm
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Fabrication Node
28nm
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Die Size
2x 212 mm²
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Die Size
212 mm²
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Transistor Count
2x 2.8 Billion
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Transistor Count
2.8 Billion
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Transistor Density
13.21M/mm²
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Transistor Density
13.21M/mm²
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Form
MXM-B
Form
MXM-B
Shading Units
2x 1280 Shaders
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Shading Units
1280 Shaders
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Texture Mapping Units
2x 80 TMUs
Texture Mapping Units
80 TMUs
Render Output Units
2x 32 ROPs
Render Output Units
32 ROPs
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Compute Units
2x 20 CUs
Compute Units
20 CUs
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850MHz
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700MHz
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FP32
4.35 TFLOPS
FP32
1.79 TFLOPS
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FP64
0.27 TFLOPS
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FP64
0.11 TFLOPS
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Pixel Fillrate
27.2 GPixel/s
Pixel Fillrate
22.4 GPixel/s
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Texture Fillrate
68 GTexel/s
Texture Fillrate
56 GTexel/s
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L1
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16KB/CU
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L1
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16KB/CU
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L2
512KB Shared
L2
512KB Shared
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2x 2GB
GDDR5
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2GB
GDDR5
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Bus Width
256Bit
Bus Width
256Bit
Clock
1200MHz
Transfer Rate
4.8GT/s
Bandwidth
153.6GB/s
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
128GB/s
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TDP
75W
TDP
75W
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No Ports
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No Ports
Max Resolution
4096x2160
Max Resolution
4096x2160
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
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Variable Refresh Rate
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Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
3
Multi Monitor Support
3
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Model
VCE 1.0
Model
VCE 1.0
Codec
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AVC (H.264)
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Codec
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AVC (H.264)
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Model
UVD 4.0
Model
UVD 4.0
Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Direct X
12
Direct 3D
11_1
Direct X
12
Direct 3D
11_1
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
Shader Model
6.5
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GFX
6
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Shader Model
6.5
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GFX
6
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Not a Card
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Not a Card
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PCIe Version
3.0
PCIe Lanes
16
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PCIe Version
3.0
PCIe Lanes
16
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Change Results