Radeon HD 6770 vs Radeon HD 7770 GHz

Radeon HD 6770
Radeon HD 7770 GHz
800 Shaders
1GB GDDR5
850MHz
640 Shaders
1GB GDDR5
1000MHz
FP32
1.36 TFLOPS
FP32
1.28 TFLOPS
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-
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
108W
TDP
80W
Power Connectors
1x 6-Pin
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-
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Power Connectors
1x 6-Pin
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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
TeraScale 2
Architecture
GCN 1
Family
Radeon HD 6000
Family
Radeon HD 7000
Codename
Juniper
RV840
Variant
Juniper XT
Codename
Cape Verde
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Variant
Cape Verde XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
4/19/2011
Release Date
2/1/2012
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
166 mm²
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Die Size
123 mm²
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Transistor Count
1 Billion
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Transistor Count
1.5 Billion
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Transistor Density
6.27M/mm²
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Transistor Density
12.20M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
800 Shaders
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Shading Units
640 Shaders
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Texture Mapping Units
40 TMUs
Texture Mapping Units
40 TMUs
Render Output Units
16 ROPs
Render Output Units
16 ROPs
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Compute Units
10 CUs
Compute Units
10 CUs
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850MHz
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1000MHz
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FP32
1.36 TFLOPS
FP32
1.28 TFLOPS
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FP64
0.08 TFLOPS
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Pixel Fillrate
13.6 GPixel/s
Pixel Fillrate
16 GPixel/s
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Texture Fillrate
34 GTexel/s
Texture Fillrate
40 GTexel/s
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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
256KB Shared
L2
256KB Shared
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1GB
GDDR5
-
1GB
GDDR5
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Bus Width
128Bit
Bus Width
128Bit
Clock
1200MHz
Transfer Rate
4.8GT/s
Bandwidth
76.8GB/s
Clock
1125MHz
Transfer Rate
4.5GT/s
Bandwidth
72GB/s
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TDP
108W
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
Max Resolution
4096x2160
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
-
-
Variable Refresh Rate
-
-
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
3
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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 2.2
Model
UVD 4.0
Codec
-
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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
Direct X
12
Direct 3D
11_1
OpenGL
4.5
OpenCL
1.2
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OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
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
Power Connectors
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1x 6-Pin
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Power Connectors
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1x 6-Pin
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Slots Required
2.0
PCIe Version
2.1
PCIe Lanes
16
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
4-way CrossFireX
Multi GPU Support
Supported
Type
2-way CrossFireX
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)
Change Results