AMD Radeon HD 6790 vs AMD Radeon HD 7770 GHz
AMD Radeon HD 6790
$149
AMD Radeon HD 7770 GHz
$160
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800 Shaders
1GB GDDR5
840MHz
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640 Shaders
1GB GDDR5
1000MHz
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Peak AI Performance
1.34 TFLOPS
FP32
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Peak AI Performance
1.28 TFLOPS
FP32
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FP32
1.34 TFLOPS
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FP32
1.28 TFLOPS
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-
-
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-
-
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Form Factor
PCIe Card
2.0-Slots
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Form Factor
PCIe Card
2.0-Slots
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TDP
150W
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TDP
80W
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Power Connectors
1x 6-Pin
-
-
-
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Power Connectors
1x 6-Pin
-
-
-
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GB6 OpenCL N/A
0%
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GB6 OpenCL N/A
0%
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GB6 Metal N/A
0%
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GB6 Metal N/A
0%
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GB6 Vulkan N/A
0%
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GB6 Vulkan N/A
0%
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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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Peak AI
Performance
1.34 TFLOPS
FP32
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Peak AI
Performance
1.28 TFLOPS
FP32
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FP32
1.34 TFLOPS
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-
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FP32
1.28 TFLOPS
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-
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-
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FP64
80 GFLOPS
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Pixel
Fillrate
13.44 GPixel/s
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Pixel
Fillrate
16 GPixel/s
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Texture
Fillrate
33.6 GTexel/s
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Texture
Fillrate
40 GTexel/s
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Manufacturer
AMD
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Manufacturer
AMD
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Chip Designer
AMD
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Chip Designer
AMD
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Architecture
TeraScale 2
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Architecture
GCN 1
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Family
Radeon HD 6000
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Family
Radeon HD 7000
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Codename
Barts
RV940
Variant
Barts LE
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Codename
Cape Verde
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Variant
Cape Verde XT
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Market Segment
Desktop
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Market Segment
Desktop
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Release Date
4/4/2011
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Release Date
2/1/2012
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Foundry
TSMC
-
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Foundry
TSMC
-
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Fabrication Node
40nm
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Fabrication Node
28nm
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Die Size
255 mm²
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Die Size
123 mm²
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Transistor Count
1.7 Billion
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Transistor Count
1.5 Billion
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Transistor Density
6.67M/mm²
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Transistor Density
12.20M/mm²
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Form
PCIe Card
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Form
PCIe Card
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Shading Units
800 Shaders
-
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Shading Units
640 Shaders
-
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Texture Mapping Units
40 TMUs
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Texture Mapping Units
40 TMUs
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Render Output Units
16 ROPs
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Render Output Units
16 ROPs
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Compute Units
10 CUs
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Compute Units
10 CUs
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840MHz
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1000MHz
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L1
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8KB/CU
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L1
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16KB/CU
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L2
512KB Shared
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L2
256KB Shared
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1GB
GDDR5
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1GB
GDDR5
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Bus Width
256Bit
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Bus Width
128Bit
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Clock
1050MHz
Transfer Rate
4.2GT/s
Bandwidth
134.4GB/s
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Clock
1125MHz
Transfer Rate
4.5GT/s
Bandwidth
72GB/s
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TDP
150W
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TDP
80W
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2x DVI-I Dual-Link
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1x DisplayPort 1.1
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1x HDMI 1.3
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1x DVI-I Dual-Link
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2x mini-DisplayPort 1.2
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1x HDMI 1.4
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Max Resolution
2560x1600
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Max Resolution
4096x2160
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Max Resolution Refresh Rate
60Hz
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Max Resolution Refresh Rate
60Hz
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Variable Refresh Rate
-
-
-
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Variable Refresh Rate
-
-
-
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Display Stream Compression (DSC)
Not Supported
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Display Stream Compression (DSC)
Not Supported
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Multi Monitor Support
2
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Multi Monitor Support
3
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-
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No Encoders
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Model
VCE 1.0
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Codec
-
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AVC (H.264)
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Model
UVD 3.0
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Model
UVD 4.0
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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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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
11
Direct 3D
11_0
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Direct X
12
Direct 3D
11_1
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OpenGL
4.5
OpenCL
1.2
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OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
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Shader Model
5.0
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GFX
4
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Shader Model
6.5
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GFX
6
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1x Fan
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1x Fan
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Power Connectors
-
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1x 6-Pin
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Power Connectors
-
-
1x 6-Pin
-
-
-
-
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Slots Required
2.0
PCIe Version
2.1
PCIe Lanes
16
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Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
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Multi GPU Support
Supported
Type
4-way CrossFireX
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Multi GPU Support
Supported
Type
2-way CrossFireX
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Height
111 mm (4.37 in)
Width
198 mm (7.8 in)
Depth
36 mm (1.42 in)
|
Height
111 mm (4.37 in)
Width
210 mm (8.27 in)
Depth
37 mm (1.46 in)
|
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