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NVIDIA GeForce GT 640

NVIDIA GeForce GT 640 Image NVIDIA GK107 Image
The GeForce GT 640 is a mid-range graphics card by NVIDIA, launched in June 2012. Built on the 28 nm process, and based on the GK107 graphics processor, in its GK107-300-A2 variant, the card supports DirectX 11.0. The GK107 graphics processor is an average sized chip with a die area of 118 mm² and 1,270 million transistors. It features 384 shading units, 32 texture mapping units and 16 ROPs. NVIDIA has placed 2,048 MB DDR3 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 902 MHz, memory is running at 891 MHz.
We recommend the NVIDIA GeForce GT 640 for gaming with highest details at resolutions up to, and including, 1280x720.
Being a single-slot card, the NVIDIA GeForce GT 640 does not require any additional power connector, its power draw is rated at 65 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x DisplayPort. GeForce GT 640 is connected to the rest of the system using a PCIe 3.0 x16 interface. The card measures 145 mm in length, and features a single-slot cooling solution. Its price at launch was 99 US Dollars.

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: Jun 5th, 2012
Production Status: Active
Launch Price: 99 USD
Bus Interface: PCIe 3.0 x16

Clock Speeds

GPU Clock: 902 MHz
Memory Clock: 891 MHz
1782 MHz effective

Memory

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

Render Config

Shading Units: 384
TMUs: 32
ROPs: 16
SMX Count: 2
Pixel Rate: 7.22 GPixel/s
Texture Rate: 28.9 GTexel/s
Floating-point performance: 692.7 GFLOPS

Board Design

Slot Width: Single-slot
Length: 5.7 inches
145 mm
TDP: 65 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

VGA BIOS

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GPU-Z Validation

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Card Notes

DPUs: 128
SFUs: 64

GK107 GPU Notes

Compute Capability: CUDA 3.0

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
AFOX GT 640 V1 902 MHz 891 MHz 1x DVI 1x VGA 1x HDMI
AFOX GT 640 V2 902 MHz 891 MHz 1x DVI 1x VGA 1x HDMI
AFOX GT 640 V3 902 MHz 875 MHz 1x DVI 1x VGA 1x HDMI
AFOX GT 640 V4 902 MHz 800 MHz 1x DVI 1x VGA 1x HDMI
ASUS GT 640 Formula II 902 MHz 891 MHz 8.27 inches, 2x DVI 1x VGA 1x HDMI
ASUS GT 640 Low Profile 1 GB 902 MHz 901 MHz 1024 MB, 6.75 inches, 1x DVI 1x VGA 1x HDMI
BIOSTAR GT 640 1 GB 902 MHz 891 MHz 1024 MB, Dual-slot, 1x DVI 1x VGA 1x HDMI
BIOSTAR GT 640 2 GB 902 MHz 891 MHz Dual-slot, 1x DVI 1x VGA 1x HDMI
Colorful GT 640 PRO X4 902 MHz 891 MHz 6.6 inches, 2x DVI
EVGA GT 640 902 MHz 901 MHz 6.7 inches, Dual-slot, 2x DVI 1x mini-HDMI
EVGA GT 640 902 MHz 901 MHz 6.7 inches, 2x DVI 1x mini-HDMI
EVGA GT 640 4 GB 902 MHz 901 MHz 4096 MB, 6.7 inches, Dual-slot, 2x DVI 1x mini-HDMI
EVGA GT 640 4 GB 902 MHz 667 MHz 4096 MB, 6.7 inches, 2x DVI 1x mini-HDMI
EVGA GT 640 Superclocked 928 MHz 915 MHz 6.7 inches, Dual-slot, 2x DVI 1x mini-HDMI
Gainward GT 640 1 GB 902 MHz 891 MHz 1024 MB, 5.9 inches, Dual-slot, 1x DVI 1x VGA 1x HDMI
Gainward GT 640 2 GB 902 MHz 891 MHz 5.9 inches, Dual-slot, 1x DVI 1x VGA 1x HDMI
Galaxy GT 640 GC 950 MHz 891 MHz Dual-slot, 1x DVI 1x VGA 1x HDMI
GIGABYTE GT 640 OC 1046 MHz 900 MHz 7.48 inches, Dual-slot, 2x DVI 1x VGA 1x HDMI
GIGABYTE GT 640 OC Rev. 2 941 MHz 900 MHz 7.48 inches, Dual-slot, 2x DVI 1x VGA 1x HDMI
Inno3D GT 640 Raptor 1 GB 902 MHz 900 MHz 1024 MB, 1x DVI 1x VGA 1x HDMI
Inno3D GT 640 Raptor 2 GB 902 MHz 900 MHz Dual-slot, 1x DVI 1x VGA 1x HDMI
Leadtek WinFast GT 640 ATX 1 GB 902 MHz 900 MHz 1024 MB, Dual-slot, 1x DVI 1x VGA 1x HDMI 1x DisplayPort
Leadtek WinFast GT 640 ATX 2 GB 902 MHz 800 MHz Dual-slot, 1x DVI 1x VGA 1x HDMI 1x DisplayPort
Leadtek WinFast GT 640 Low Profile 1 GB 902 MHz 900 MHz 1024 MB, 1x DVI 1x VGA 1x HDMI
Leadtek WinFast GT 640 Low Profile 2 GB 902 MHz 800 MHz 1x DVI 1x VGA 1x HDMI
MSI GT 640 4 GB 902 MHz 891 MHz 4096 MB, 6.06 inches, Dual-slot, 1x DVI 1x VGA 1x HDMI
MSI GT 640 OC 1 GB 941 MHz 667 MHz 1024 MB, 6.73 inches, Dual-slot, 1x DVI 1x VGA 1x HDMI
MSI GT 640 OC 2 GB 941 MHz 891 MHz 6.73 inches, Dual-slot, 1x DVI 1x VGA 1x HDMI
MSI GT 640 V1 902 MHz 810 MHz 6.06 inches, Dual-slot, 1x DVI 1x VGA 1x HDMI
Point of View GT 640 902 MHz 800 MHz 1x DVI 1x VGA 1x HDMI
SPARKLE GT 640 Low Profile OC 928 MHz 891 MHz 6 inches, 1x DVI 1x VGA 1x HDMI
SPARKLE GT 640 Low Profile OC 928 MHz 891 MHz 6 inches, 1x DVI 1x VGA 1x HDMI
SPARKLE GT 640 OC 1 GB 954 MHz 891 MHz 1024 MB, 6.7 inches, Dual-slot, 3x DVI 1x mini-HDMI
SPARKLE GT 640 OC Dragon Cyclone 954 MHz 891 MHz Dual-slot, 3x DVI 1x mini-HDMI
XFX Double D GT 640 902 MHz 891 MHz 6.18 inches, 1x DVI 1x VGA 1x HDMI
ZOTAC GT 640 ZONE Edition 902 MHz 800 MHz GDDR3, 5.69 inches, Dual-slot, 2x DVI 1x mini-HDMI