NVIDIA GeForce GTX 645 Specs
NVIDIA GeForce GTX 645
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576 Shaders
1GB GDDR5
889MHz
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Peak AI Performance
1.02 TOPS
INT32
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FP32
1.02 TFLOPS
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Form Factor
PCIe Card
1.0-Slots
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TDP
64W
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Manufacturer
NVIDIA
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Chip Designer
NVIDIA
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Architecture
Kepler
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Family
GeForce 600
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Codename
NVE6
GK106
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Market Segment
Desktop
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Release Date
4/22/2013
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Foundry
TSMC
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Fabrication Node
28nm
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Die Size
221 mm²
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Transistor Count
2.5 Billion
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Transistor Density
11.49M/mm²
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Form
PCIe Card
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Shading Units
576 Shaders
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Texture Mapping Units
48 TMUs
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Render Output Units
16 ROPs
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Streaming Multiprocessors
3 SMs
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824MHz Base
889MHz
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Peak AI Performance
1.02 TOPS
INT32
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FP32
1.02 TFLOPS
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FP64
40 GFLOPS
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INT32
1.02 TOPS
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Pixel Fillrate
14.216 GPixel/s
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Texture Fillrate
42.648 GTexel/s
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L1
48KB/SM Tex
16KB/SM
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L2
512KB Shared
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1GB
GDDR5
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Bus Width
128Bit
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Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
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TDP
64W
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1x DVI-I Dual-Link
1x DisplayPort 1.2
1x HDMI 1.4
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Max Resolution
4096x2304
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Max Resolution Refresh Rate
30Hz
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Variable Refresh Rate
G-Sync
FreeSync
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Display Stream Compression (DSC)
Not Supported
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Multi Monitor Support
2
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Model
NVENC 1
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Codec
AVC (H.264)
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Model
NVDEC 1
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Codec
MPEG-1
MPEG-2
MPEG-4
VC-1
AVC (H.264)
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Direct X
12
Direct 3D
11_0
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OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
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Shader Model
6.5
CUDA
3.0
PureVideo HD
VP5
VDPAU
Feature Set D
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1x Fan
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Slots Required
1.0
PCIe Version
3.0
PCIe Lanes
16
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Height
111 mm (4.37 in)
Width
168 mm (6.61 in)
Depth
20 mm (0.79 in)
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