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NVIDIA GeForce GT 640M LE 2 GB

Graphics Processor
GK107
Cores
384
TMUs
32
ROPs
16
Memory Size
2 GB
Memory Type
DDR3
Bus Width
128 bit
Front GPU Chip
GPU Chip
GPU

Graphics Processor

GPU Name
GK107
GPU Variant
N13P-LP
Architecture
Kepler
Foundry
TSMC
Process Size
28 nm
Transistors
1,270 million
Density
10.8M / mm²
Die Size
118 mm²
Chip Package
BGA-908

Mobile Graphics

Release Date
Mar 22nd, 2012
Generation
GeForce 600M
Predecessor
GeForce 500M
Successor
GeForce 700M
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Clock Speeds

Base Clock
500 MHz
Boost Clock
570 MHz
Memory Clock
900 MHz
1800 Mbps effective

Memory

Memory Size
1024 MB
2 GB
Memory Type
DDR3
Memory Bus
128 bit
Bandwidth
28.80 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
4.560 GPixel/s
Texture Rate
18.24 GTexel/s
FP32 (float)
437.8 GFLOPS
FP64 (double)
18.24 GFLOPS (1:24)

Board Design

Slot Width
IGP
TDP
20 W
Outputs
Portable Device Dependent
Power Connectors
None

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

Memory Variant: 2048MB DDR3
Memory Variant: 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 (3)

Name GPU Clock Boost Clock Memory Clock Other Changes
Dell GT 640M LE 2 GB
624 MHz 709 MHz 900 MHz 2 GB
NVIDIA GeForce GT 640M LE
500 MHz 570 MHz 1000 MHz GDDR5
NVIDIA GeForce GT 640M LE 2 GB
500 MHz 570 MHz 900 MHz 2 GB
May 5th, 2024 06:09 EDT change timezone

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