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NVIDIA GeForce GT 640 OEM 1 GB

NVIDIA GeForce GT 640 OEM 1 GB Image NVIDIA GK107 Image

Graphics Processor

GPU Name: GK107
GPU Variant: GK107-300-A2
Process Size: 28 nm
Transistors: 1,270 million
Die Size: 118 mm²

Graphics Card

Released: Apr 24th, 2012
Production Status: Active
Bus Interface: PCIe 3.0 x16

Clock Speeds

GPU Clock: 797 MHz
954 MHz (+20%)
Memory Clock: 891 MHz
1250 MHz (+40%)
1782 MHz effective
5000 MHz effective

Memory

Memory Size: 2048 MB
1024 MB
Memory Type: DDR3
GDDR5
Memory Bus: 128 bit
Bandwidth: 28.5 GB/s
80.0 GB/s

Render Config

Shading Units: 384
TMUs: 32
ROPs: 16
SMX Count: 2
Pixel Rate: 6.38 GPixel/s
7.63 GPixel/s
Texture Rate: 25.5 GTexel/s
30.5 GTexel/s
Floating-point performance: 612.1 GFLOPS
732.7 GFLOPS

Board Design

Slot Width: Single-slot
Length: 5.7 inches
145 mm
TDP: 50 W
Outputs: 1x DVI
1x HDMI
1x DisplayPort
Power Connectors: None

Graphics Features

DirectX: 11.0
OpenGL: 4.5
OpenCL: 1.1
Shader Model: 5.0

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Card Notes

OEM
DPUs: 128
SFUs: 64

Variant Memory: 4096MB DDR3
Variant Memory: 1024MB GDDR5

GK107 GPU Notes

Compute Capability: CUDA 3.0

Other retail boards based on this design

Name GPU Clock Memory Clock Other Changes
NVIDIA GeForce GT 640 OEM 1 GB 954 MHz 1250 MHz 1024 MB, GDDR5
NVIDIA GeForce GT 640 OEM 2 GB 797 MHz 891 MHz 2048 MB