Home NVIDIA GeForce GT 640 Rev. 2

NVIDIA GeForce GT 640 Rev. 2

This is a GPU manufactured with TSMC 28nm process, based on Nvidia Kepler 2.0 architecture and released on May 2013. It features 1.02 billion transistors, 384 CUDA cores and 1024MB GDDR5 memory, with 512KB L2 cache, theoretical performance of 803.3GFLOPS, with total power consumption of 49W.

Graphics Card

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Release Date
May 2013
Generation
GeForce 600
Type
Desktop
Bus Interface
PCIe 2.0 x8

Clock Speeds

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Memory Clock
1252 MHz

Memory

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Memory Size
1024MB
Memory Type
GDDR5
Memory Bus
64bit
Bandwidth
40.06GB/s

Render Config

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Shading Units
384
TMUs
32
ROPs
8
L1 Cache
16 KB (per SMX)
L2 Cache
512 KB

Theoretical Performance

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Pixel Rate
8.368 GPixel/s
Texture Rate
33.47 GTexel/s
FP32 (float)
803.3 GFLOPS
FP64 (double)
33.47 GFLOPS

Graphics Processor

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GPU Name
GK208
GPU Variant
GK208-400-A1
Architecture
Kepler 2.0
Foundry
TSMC
Process Size
28 nm
Transistors
1.02 billion
Die Size
87 mm²

Board Design

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TDP
49W
Suggested PSU
200 W
Outputs
1x DVI
1x HDMI 1.4a
1x VGA
Power Connectors
None

Graphics Features

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DirectX
12 (11_0)
OpenGL
4.6
OpenCL
3.0
Vulkan
1.1
CUDA
3.5
Shader Model
5.1

Rankings

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FP32 (float)
NVIDIA GeForce GTX 670M 1536 MB GDDR5
0.804 TFLOPS
ATI Mobility Radeon HD 4850 1024 MB GDDR3
0.804 TFLOPS
ATI Mobility Radeon HD 4850 Mac Edition 512 MB GDDR3
0.804 TFLOPS
NVIDIA GeForce GT 640 Rev. 2 1024 MB GDDR5
0.803 TFLOPS
NVIDIA Quadro M520 Mobile 2 GB GDDR5
0.8 TFLOPS
AMD Radeon E8860 2 GB GDDR5
0.8 TFLOPS
AMD Radeon R9 M265X 2 GB GDDR5
0.8 TFLOPS

Related Comparisons

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NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce RTX 3060 Ti GDDR6X
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NVIDIA GeForce RTX 4050 vs NVIDIA GeForce GT 640 Rev. 2
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NVIDIA GeForce RTX 4090D vs NVIDIA GeForce GT 640 Rev. 2
6
NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon HD 7450 OEM
7
Intel Arc Pro A50 vs NVIDIA GeForce GT 640 Rev. 2
8
NVIDIA GeForce GT 640 Rev. 2 vs ATI Radeon HD 4670 AGP
9
NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon RX 5300
10
NVIDIA GeForce GT 640 Rev. 2 vs 3dfx Voodoo4-2 4200 PCI 32 MB

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