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ZOTAC GT 640 Guild Wars

Graphics Processor
GK208
Cores
384
TMUs
32
ROPs
8
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
64 bit
GPU Chip
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
Dual-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: No Support
NVDEC: 1st Gen
PureVideo HD: VP5
VDPAU: Feature Set D

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

Other retail boards based on this design (16)

Name GPU Clock Memory Clock Other Changes
1046 MHz 1252 MHz
1046 MHz 1252 MHz
1046 MHz 1252 MHz
1046 MHz 1252 MHz 159 mm/6.3 inches
1097 MHz 1252 MHz
1046 MHz 1252 MHz 157 mm/6.2 inches
1046 MHz 1252 MHz 2 GB, 177 mm/7 inches
1046 MHz 1252 MHz
1064 MHz 1252 MHz
1046 MHz 1252 MHz 146 mm/5.7 inches
1046 MHz 1252 MHz
1046 MHz 1252 MHz 2 GB, 1x DVI 1x mini-HDMI 1x VGA
1046 MHz 1252 MHz 146 mm/5.7 inches
1046 MHz 1252 MHz
1046 MHz 1252 MHz 2 GB
ZOTAC GT 640 Guild Wars
1046 MHz 1252 MHz Dual-slot
Apr 16th, 2024 01:17 EDT change timezone

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