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NVIDIA GeForce GT 640 OEM 1 GB

Graphics Processor
GK107
Cores
384
TMUs
32
ROPs
16
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
128 bit
Front GPU Chip
GPU Chip
GPU
I/O
I/O
Bottom
Bottom

Graphics Processor

GPU Name
GK107
GPU Variant
GK107-320-A2
GK107-400-A2
Architecture
Kepler
Foundry
TSMC
Process Size
28 nm
Transistors
1,270 million
Density
10.8M / mm²
Die Size
118 mm²
Chip Package
BGA-908

Graphics Card

Release Date
Apr 24th, 2012
Generation
GeForce 600
Predecessor
GeForce 500
Successor
GeForce 700
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Clock Speeds

GPU Clock
797 MHz
954 MHz (+20%)
Memory Clock
891 MHz
1250 MHz (+40%)
1782 Mbps effective
5 Gbps effective

Memory

Memory Size
2 GB
1024 MB
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
Bandwidth
28.51 GB/s
80.00 GB/s

Render Config

Shading Units
384
TMUs
32
ROPs
16
SMX Count
2
L1 Cache
16 KB (per SMX)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
6.376 GPixel/s
7.632 GPixel/s
Texture Rate
25.50 GTexel/s
30.53 GTexel/s
FP32 (float)
612.1 GFLOPS
732.7 GFLOPS
FP64 (double)
25.50 GFLOPS
30.53 GFLOPS (1:24)

Board Design

Slot Width
Single-slot
TDP
50 W
Suggested PSU
250 W
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Power Connectors
None
Board Number
P2010 SKU 3,
P2010 SKU 6,
P2012 SKU 1,
P2012 SKU 3

Graphics Features

DirectX
12 (11_0)
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2.175
CUDA
3.0
Shader Model
6.5 (5.1)

Card Notes

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

GK107 GPU Notes

NVENC: 1st Gen
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 (4)

Name GPU Clock Memory Clock Other Changes
ASUS GT 640 4 GB
797 MHz 891 MHz 4 GB
HP GT 640 4 GB
797 MHz 891 MHz 4 GB
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
Apr 25th, 2024 23:17 EDT change timezone

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