Palit GT 640 1 GB

NE5T6400HD06-2081F

Graphics Processor

GK208

Cores

384

TMUs

ROPs

Memory Size

1024 MB

Memory Type

GDDR5

Bus Width

64 bit

GPU

Graphics Processor

GPU Name: GK208

GPU Variant: GK208-400-A1

Architecture: Kepler 2.0

Foundry: TSMC

Process Size: 28 nm

Transistors: 1,020 million

Density: 11.7M / mm²

Die Size: 87 mm²

Chip Package: FCBGA-595

Graphics Card

Release Date: May 29th, 2013

Generation: GeForce 600

Predecessor: GeForce 500

Successor: GeForce 700

Production: End-of-life

Bus Interface: PCIe 2.0 x8

Clock Speeds

GPU Clock: 1046 MHz

Memory Clock: 1252 MHz
5 Gbps effective

Memory

Memory Size: 1024 MB

Memory Type: GDDR5

Memory Bus: 64 bit

Bandwidth: 40.06 GB/s

Render Config

Shading Units: 384

TMUs: 32

ROPs: 8

SMX Count: 2

L1 Cache: 16 KB (per SMX)

L2 Cache: 512 KB

Theoretical Performance

Pixel Rate: 8.368 GPixel/s

Texture Rate: 33.47 GTexel/s

FP32 (float): 803.3 GFLOPS

FP64 (double): 33.47 GFLOPS (1:24)

Board Design

Slot Width: Single-slot

TDP: 49 W

Suggested PSU: 200 W

Outputs: 1x DVI
1x HDMI 1.4a
1x VGA

Power Connectors: None

Board Number: P2131 SKU 0

Graphics Features

DirectX: 12 (11_0)

OpenGL: 4.6

OpenCL: 3.0

Vulkan: 1.2.175

CUDA: 3.5

Shader Model: 6.5 (5.1)

GK208 GPU Notes

NVENC:
NVDEC: 1st Gen
PureVideo HD: VP5
VDPAU: Feature Set D

L1 Cache is configurable from 16 KB up to 48 KB per SMX

Latest Drivers:
Windows XP / Server 2003 x64:
GeForce Release 368.81
Quadro Release R319 U2 (321.01)

Windows Vista:
GeForce Release 365.19
Quadro Release R346 U7 (348.40) / R352 BETA (352.86)

Windows 7 / 8 / 8.1 / 10 / 11 (x32 / x64):
GeForce Release 391.35 / 474.89
Quadro Release R390 U9 (392.37) / R470 U16 (474.82)
Quadro Mobile Release R390 U9 (392.37) / R418 U9 (426.78)

Other retail boards based on this design (16)

Name	GPU Clock	Memory Clock	Other Changes
ASUS GT 640	1046 MHz	1252 MHz
ASUS GT 640 Formula II	1046 MHz	1252 MHz
Gainward GT 640	1046 MHz	1252 MHz
Galaxy GT 640	1046 MHz	1252 MHz	159 mm/6.3 inches
Galaxy GT 640 Black	1097 MHz	1252 MHz
GIGABYTE GT 640	1046 MHz	1252 MHz	157 mm/6.2 inches
GIGABYTE GT 640 2 GB	1046 MHz	1252 MHz	2 GB, 177 mm/7 inches
Inno3D GT 640	1046 MHz	1252 MHz
Leadtek WinFast GT 640	1064 MHz	1252 MHz
MSI GT 640 Low Profile	1046 MHz	1252 MHz	146 mm/5.7 inches
Palit GT 640 1 GB	1046 MHz	1252 MHz
Palit GT 640 2 GB	1046 MHz	1252 MHz	2 GB, 1x DVI 1x mini-HDMI 1x VGA
XENON GT 640 LP	1046 MHz	1252 MHz	146 mm/5.7 inches
ZOTAC GT 640 1 GB	1046 MHz	1252 MHz
ZOTAC GT 640 2 GB	1046 MHz	1252 MHz	2 GB
ZOTAC GT 640 Guild Wars	1046 MHz	1252 MHz	Dual-slot