Radeon HD 6990M vs Radeon HD 6970M Mac+
Radeon HD 6990M
Radeon HD 6970M Mac+
|
1120 Shaders
2GB GDDR5
715MHz
|
960 Shaders
2GB GDDR5
680MHz
|
|
FP32
1.6 TFLOPS
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FP32
1.31 TFLOPS
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-
-
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-
-
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Form Factor
MXM-B
-
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Form Factor
MXM-B
-
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TDP
75W
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TDP
75W
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-
-
-
-
-
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-
-
-
-
-
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GB5 OpenCL - N/A
0%
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GB5 OpenCL - N/A
0%
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GB5 CUDA - N/A
0%
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GB5 CUDA - N/A
0%
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GB5 Metal - N/A
0%
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GB5 Metal - N/A
0%
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GB5 Vulkan - N/A
0%
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GB5 Vulkan - N/A
0%
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OCT 2020.1 - N/A
0%
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OCT 2020.1 - N/A
0%
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OCT Metal - N/A
0%
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OCT Metal - N/A
0%
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Manufacturer
AMD
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Manufacturer
AMD
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Chip Designer
AMD
|
Chip Designer
AMD
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Architecture
TeraScale 2
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Architecture
TeraScale 2
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Family
Radeon HD 6000
|
Family
Radeon HD 6000
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Codename
Barts
RV940
Variant
Blackcomb XTX
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Codename
Barts
RV940
Variant
Blackcomb XT
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Market Segment
Laptop
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Market Segment
Laptop
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Release Date
7/1/2011
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Release Date
1/4/2011
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Foundry
TSMC
-
|
Foundry
TSMC
-
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Fabrication Node
40nm
-
|
Fabrication Node
40nm
-
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Die Size
255 mm²
-
|
Die Size
255 mm²
-
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Transistor Count
1.7 Billion
-
|
Transistor Count
1.7 Billion
-
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Transistor Density
6.67M/mm²
-
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Transistor Density
6.67M/mm²
-
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Form
MXM-B
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Form
MXM-B
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Shading Units
1120 Shaders
-
|
Shading Units
960 Shaders
-
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Texture Mapping Units
56 TMUs
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Texture Mapping Units
48 TMUs
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|
Render Output Units
32 ROPs
|
Render Output Units
32 ROPs
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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Compute Units
14 CUs
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Compute Units
12 CUs
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-
-
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-
-
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-
-
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-
-
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-
-
-
715MHz
|
-
-
-
680MHz
|
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-
-
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-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
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FP32
1.6 TFLOPS
|
FP32
1.31 TFLOPS
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
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-
-
|
-
-
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-
-
-
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-
-
-
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Pixel Fillrate
22.88 GPixel/s
|
Pixel Fillrate
21.76 GPixel/s
|
|
-
-
|
-
-
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Texture Fillrate
40.04 GTexel/s
|
Texture Fillrate
32.64 GTexel/s
|
|
-
-
|
-
-
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L1
-
-
8KB/CU
-
|
L1
-
-
8KB/CU
-
|
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L2
512KB Shared
|
L2
512KB Shared
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-
-
-
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-
-
-
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2GB
GDDR5
-
|
2GB
GDDR5
-
|
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Bus Width
256Bit
|
Bus Width
256Bit
|
|
Clock
900MHz
Transfer Rate
3.6GT/s
Bandwidth
115.2GB/s
|
Clock
900MHz
Transfer Rate
3.6GT/s
Bandwidth
115.2GB/s
|
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-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
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TDP
75W
|
TDP
75W
|
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-
-
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-
-
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-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
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-
-
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-
-
-
-
-
-
-
-
-
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No Ports
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
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No Ports
|
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Max Resolution
2560x1600
|
Max Resolution
2560x1600
|
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Max Resolution Refresh Rate
60Hz
|
Max Resolution Refresh Rate
60Hz
|
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Variable Refresh Rate
-
-
-
|
Variable Refresh Rate
-
-
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
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Multi Monitor Support
2
|
Multi Monitor Support
2
|
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-
-
|
-
-
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No Encoders
-
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No Encoders
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
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Model
UVD 3.0
|
Model
UVD 3.0
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
|
Direct X
11
Direct 3D
11_0
|
Direct X
11
Direct 3D
11_0
|
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OpenGL
4.5
OpenCL
1.2
-
-
|
OpenGL
4.5
OpenCL
1.2
-
-
|
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Shader Model
5.0
-
-
GFX
4
-
-
-
-
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Shader Model
5.0
-
-
GFX
4
-
-
-
-
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Not a Card
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Not a Card
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-
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-
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PCIe Version
2.1
PCIe Lanes
16
|
-
-
PCIe Version
2.1
PCIe Lanes
16
|
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