NVIDIA GeForce 8600M GT vs NVIDIA GeForce GT 640

Table of Contents

Graphics Processor

GPU model G84 GK107
GPU variant NB8P-GS GK107-300-A2
Architecture Tesla Kepler
Foundry TSMC TSMC
Manufacturing process 80 nm 28 nm
Number of transistors 289 million 1,270 million
Die size 169 mm² 118 mm²

Mobile graphics

Release date May 1st, 2007
Generation GeForce 8M (8000M)
Production End-of-life
Interface MXM-II
Predecessor GeForce Go 7
Successor GeForce 9M

Clocks

GPU clock 475 MHz 902 MHz
Shader clock 950 MHz
Memory clock 700 MHz 1400 Mbps effective 891 MHz 1782 Mbps effective

Memory Configuration

Memory size 512 MB 2 GB
Memory type GDDR3 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 22.40 GB/s 28.51 GB/s

Render Configuration

Shading units 32 384
TMUs 16 32
ROPs 8 16
SM count 4
Cache L2 32 KB 256 KB
SMX count 2
Cache L1 16 KB (per SMX)

Performance

Pixel rate 3.800 GPixel/s 7.216 GPixel/s
Texture rate 7.600 GTexel/s 28.86 GTexel/s
FP32 (float) performance 60.80 GFLOPS 692.7 GFLOPS
FP64 (double) performance 28.86 GFLOPS (1:24)

Dimensions & Outputs

Slot width MXM Module Single-slot
TDP 20 W 65 W
Outputs No outputs 1x DVI1x HDMI1x DisplayPort
Length 145 mm 5.7 inches
Suggested PSU 250 W
Power connectors None
Board number P2011

API Support & Features

DirectX 11.1 (10_0) 12 (11_0)
OpenGL 3.3 4.6
OpenCL 1.1 3.0
Vulkan 1.1
CUDA 1.1 3.0
Shader model 4.0 5.1

Other Features

Graphics Card

Release date Jun 5th, 2012
Generation GeForce 600
Production End-of-life
Launch price 99 USD
Interface PCIe 3.0 x16
Predecessor GeForce 500
Successor GeForce 700

Compare

Sysrqmts browser extension icon
Stop overpaying for PC games!
See cheapest prices in Steam store with our browser extension.