Radeon HD 6750 vs GeForce GT 640 GDDR5

Radeon HD 6750
GeForce GT 640 GDDR5
720 Shaders
1GB GDDR5
700MHz
384 Shaders
1GB GDDR5
950MHz
FP32
1.01 TFLOPS
FP32
0.73 TFLOPS
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-
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
1.5-Slots
TDP
86W
TDP
75W
Power Connectors
1x 6-Pin
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-
-
-
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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
NVIDIA
Chip Designer
AMD
Chip Designer
NVIDIA
Architecture
TeraScale 2
Architecture
Kepler
Family
Radeon HD 6000
Family
GeForce 600
Codename
Juniper
RV840
Variant
Juniper Pro
Codename
NVE7
GK107
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-
Market Segment
Desktop
Market Segment
Desktop
Release Date
1/21/2011
Release Date
4/24/2012
Foundry
TSMC
-
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
118 mm²
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Transistor Count
1 Billion
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Transistor Count
1.3 Billion
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Transistor Density
6.27M/mm²
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Transistor Density
10.76M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
720 Shaders
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Shading Units
384 Shaders
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Texture Mapping Units
36 TMUs
Texture Mapping Units
32 TMUs
Render Output Units
16 ROPs
Render Output Units
16 ROPs
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Streaming Multiprocessors
2 SMs
Compute Units
9 CUs
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700MHz
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950MHz
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FP32
1.01 TFLOPS
FP32
0.73 TFLOPS
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FP64
0.03 TFLOPS
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Pixel Fillrate
11.2 GPixel/s
Pixel Fillrate
15.2 GPixel/s
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Texture Fillrate
25.2 GTexel/s
Texture Fillrate
30.4 GTexel/s
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L1
-
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8KB/CU
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L1
48KB/SM Tex
16KB/SM
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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
1150MHz
Transfer Rate
4.6GT/s
Bandwidth
73.6GB/s
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
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TDP
86W
TDP
75W
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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 VGA
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1x DVI-I Dual-Link
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1x HDMI 1.4
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Max Resolution
2560x1600
Max Resolution
4096x2304
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
30Hz
Variable Refresh Rate
-
-
-
Variable Refresh Rate
G-Sync
FreeSync
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
2
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No Encoders
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Model
NVENC 1
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Codec
-
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AVC (H.264)
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Model
UVD 2.2
Model
NVDEC 1
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_0
OpenGL
4.5
OpenCL
1.2
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-
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
Shader Model
5.0
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-
GFX
4
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-
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Shader Model
6.5
CUDA
3.0
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PureVideo HD
VP5
VDPAU
Feature Set D
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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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Slots Required
2.0
PCIe Version
2.1
PCIe Lanes
16
Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
4-way CrossFireX
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Height
111 mm (4.37 in)
Width
170 mm (6.69 in)
Depth
40 mm (1.57 in)
Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
Change Results