GeForce GTX 750 vs GeForce GTX 645

GeForce GTX 750
GeForce GTX 645
512 Shaders
1GB GDDR5
1163MHz
576 Shaders
1GB GDDR5
889MHz
FP32
1.19 TFLOPS
FP32
1.02 TFLOPS
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Form Factor
PCIe Card
1.5-Slots
Form Factor
PCIe Card
1.0-Slots
TDP
55W
TDP
64W
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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
NVIDIA
Manufacturer
NVIDIA
Chip Designer
NVIDIA
Chip Designer
NVIDIA
Architecture
Maxwell
Architecture
Kepler
Family
GeForce 700
Family
GeForce 600
Codename
NV117
GM107
Variant
GM107-300-A2
Codename
NVE6
GK106
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Market Segment
Desktop
Market Segment
Desktop
Release Date
2/18/2014
Release Date
4/22/2013
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
28nm
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Fabrication Node
28nm
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Die Size
148 mm²
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Die Size
221 mm²
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Transistor Count
1.9 Billion
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Transistor Count
2.5 Billion
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Transistor Density
12.64M/mm²
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Transistor Density
11.49M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
512 Shaders
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Shading Units
576 Shaders
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Texture Mapping Units
32 TMUs
Texture Mapping Units
48 TMUs
Render Output Units
16 ROPs
Render Output Units
16 ROPs
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Streaming Multiprocessors
4 SMs
Streaming Multiprocessors
3 SMs
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1020MHz Base
1163MHz
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824MHz Base
889MHz
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FP32
1.19 TFLOPS
FP32
1.02 TFLOPS
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FP64
0.04 TFLOPS
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FP64
0.04 TFLOPS
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Pixel Fillrate
18.608 GPixel/s
Pixel Fillrate
14.216 GPixel/s
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Texture Fillrate
37.216 GTexel/s
Texture Fillrate
42.648 GTexel/s
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L1
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64KB/SM
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L1
48KB/SM Tex
16KB/SM
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L2
2MB 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
128Bit
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
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TDP
55W
TDP
64W
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1x DVI-I Dual-Link
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1x DVI-D Dual-Link
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1x mini-HDMI 1.4
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1x DVI-I Dual-Link
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1x DisplayPort 1.2
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1x HDMI 1.4
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Max Resolution
4096x2304
Max Resolution
4096x2304
Max Resolution Refresh Rate
30Hz
Max Resolution Refresh Rate
30Hz
Variable Refresh Rate
G-Sync
FreeSync
-
Variable Refresh Rate
G-Sync
FreeSync
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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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Model
NVENC 2
Model
NVENC 1
Codec
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AVC (H.264)
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Codec
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AVC (H.264)
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Model
NVDEC 1
Model
NVDEC 1
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
12
Direct 3D
11_0
Direct X
12
Direct 3D
11_0
OpenGL
4.6
OpenCL
3.0
Vulkan
1.3
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
Shader Model
6.7
CUDA
5.0
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PureVideo HD
VP6
VDPAU
Feature Set E
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
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Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
Slots Required
1.0
PCIe Version
3.0
PCIe Lanes
16
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Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
Height
111 mm (4.37 in)
Width
168 mm (6.61 in)
Depth
20 mm (0.79 in)
Change Results