Radeon HD 6750 vs GeForce GT 645

Radeon HD 6750
GeForce GT 645
720 Shaders
1GB GDDR5
700MHz
288 Shaders
1GB GDDR5
776MHz
FP32
1.01 TFLOPS
FP32
0.89 TFLOPS
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
86W
TDP
140W
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
NVIDIA
Chip Designer
AMD
Chip Designer
NVIDIA
Architecture
TeraScale 2
Architecture
Fermi
Family
Radeon HD 6000
Family
GeForce 600
Codename
Juniper
RV840
Variant
Juniper Pro
Codename
NVCE
GF114
Variant
GF114-400-A1
Market Segment
Desktop
Market Segment
Desktop
Release Date
1/21/2011
Release Date
4/24/2012
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
40nm
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Fabrication Node
40nm
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Die Size
166 mm²
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Die Size
332 mm²
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Transistor Count
1 Billion
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Transistor Count
2 Billion
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Transistor Density
6.27M/mm²
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Transistor Density
5.87M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
720 Shaders
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Shading Units
288 Shaders
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Texture Mapping Units
36 TMUs
Texture Mapping Units
48 TMUs
Render Output Units
16 ROPs
Render Output Units
24 ROPs
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Streaming Multiprocessors
6 SMs
Compute Units
9 CUs
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700MHz
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1552MHz Shader
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776MHz
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FP32
1.01 TFLOPS
FP32
0.89 TFLOPS
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FP64
0.07 TFLOPS
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Pixel Fillrate
11.2 GPixel/s
Pixel Fillrate
18.624 GPixel/s
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Texture Fillrate
25.2 GTexel/s
Texture Fillrate
37.248 GTexel/s
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L1
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8KB/CU
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L1
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64KB/SM
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L2
256KB Shared
L2
512KB Shared
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1GB
GDDR5
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1GB
GDDR5
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Bus Width
128Bit
Bus Width
192Bit
Clock
1150MHz
Transfer Rate
4.6GT/s
Bandwidth
73.6GB/s
Clock
957MHz
Transfer Rate
3.8GT/s
Bandwidth
91.9GB/s
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TDP
86W
TDP
140W
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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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2x DVI-I Dual-Link
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1x mini-HDMI 1.3
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Max Resolution
2560x1600
Max Resolution
2560x1600
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
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Variable Refresh Rate
-
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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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No Encoders
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Model
UVD 2.2
No Decoders
Codec
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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
1.1
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Shader Model
5.0
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GFX
4
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Shader Model
5.1
CUDA
2.1
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PureVideo HD
VP4
VDPAU
Feature Set C
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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
2.0
PCIe Version
2.0
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
210 mm (8.27 in)
Depth
38 mm (1.5 in)
Change Results