Radeon HD 6670 vs Radeon HD 4750
Radeon HD 6670
Radeon HD 4750
|
480 Shaders
2GB GDDR5
800MHz
|
640 Shaders
512MB GDDR5
730MHz
|
|
FP32
0.77 TFLOPS
|
FP32
0.93 TFLOPS
|
|
-
-
|
-
-
|
|
Form Factor
PCIe Card
1.0-Slots
|
Form Factor
PCIe Card
1.0-Slots
|
|
TDP
66W
|
TDP
80W
|
|
-
-
-
-
-
|
Power Connectors
1x 6-Pin
-
-
-
|
|
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
ATI
|
|
Chip Designer
AMD
|
Chip Designer
ATI
|
|
Architecture
TeraScale 2
|
Architecture
TeraScale 1
|
|
Family
Radeon HD 6000
|
Family
Radeon HD 4000
|
|
Codename
Turks
RV930
Variant
Turks XT
|
Codename
Walden
RV740
Variant
RV740
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
4/19/2011
|
Release Date
9/9/2009
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
40nm
-
|
Fabrication Node
40nm
-
|
|
Die Size
118 mm²
-
|
Die Size
137 mm²
-
|
|
Transistor Count
716 Million
-
|
Transistor Count
826 Million
-
|
|
Transistor Density
6.07M/mm²
-
|
Transistor Density
6.03M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
480 Shaders
-
|
Shading Units
640 Shaders
-
|
|
Texture Mapping Units
24 TMUs
|
Texture Mapping Units
32 TMUs
|
|
Render Output Units
8 ROPs
|
Render Output Units
16 ROPs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Compute Units
6 CUs
|
Compute Units
8 CUs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
-
800MHz
|
-
-
-
730MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
FP32
0.77 TFLOPS
|
FP32
0.93 TFLOPS
|
|
-
-
|
-
-
|
|
-
-
-
|
FP64
0.19 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
Pixel Fillrate
6.4 GPixel/s
|
Pixel Fillrate
11.68 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
19.2 GTexel/s
|
Texture Fillrate
23.36 GTexel/s
|
|
-
-
|
-
-
|
|
L1
-
-
8KB/CU
-
|
L1
-
-
16KB/CU
-
|
|
L2
256KB Shared
|
L2
128KB Shared
|
|
-
-
-
|
-
-
-
|
|
2GB
GDDR5
-
|
512MB
GDDR5
-
|
|
Bus Width
128Bit
|
Bus Width
128Bit
|
|
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
|
Clock
800MHz
Transfer Rate
3.2GT/s
Bandwidth
51.2GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
66W
|
TDP
80W
|
|
-
-
|
-
-
|
|
1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.3
-
-
-
-
-
|
-
1x S-Video
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
Max Resolution
2560x1600
|
Max Resolution
2560x1600
|
|
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
2
|
|
-
-
|
-
-
|
|
No Encoders
-
|
No Encoders
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
Model
UVD 3.0
|
Model
UVD 2.2
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
Codec
-
-
-
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
|
Direct X
11
Direct 3D
11_0
|
Direct X
10
Direct 3D
10_1
|
|
OpenGL
4.5
OpenCL
1.2
-
-
|
OpenGL
3.3
OpenCL
1.1
-
-
|
|
Shader Model
5.0
-
-
GFX
4
-
-
-
-
|
Shader Model
4.1
-
-
GFX
3
-
-
-
-
|
|
-
-
-
1x Fan
|
-
-
-
1x Fan
|
|
-
-
-
-
-
-
-
-
|
Power Connectors
-
-
1x 6-Pin
-
-
-
-
|
|
Slots Required
1.0
PCIe Version
2.1
PCIe Lanes
16
|
Slots Required
1.0
PCIe Version
2.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
4-way CrossFireX
|
Multi GPU Support
Supported
Type
2-way CrossFireX
|
|
-
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-
-
-
|
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