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GPU Comparison
NVIDIA GeForce GT 640M vs NVIDIA GeForce GT 640M LE
NVIDIA GeForce GT 640M vs NVIDIA GeForce GT 640M LE
VS
NVIDIA GeForce GT 640M
NVIDIA GeForce GT 640M LE
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640M 's Advantages
288 additional rendering cores
NVIDIA GeForce GT 640M LE 's Advantages
Larger VRAM bandwidth (50.24GB/s vs 28.80GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 640M
+66%
0.48 TFLOPS
GeForce GT 640M LE
0.289 TFLOPS
GeForce GT 640M
VS
GeForce GT 640M LE
Graphics Card
Mar 2012
Release Date
May 2012
GeForce 600M
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
785 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
28.80GB/s
Bandwidth
50.24GB/s
Render Config
-
SM Count
2
-
Compute Units
-
384
Shading Units
96
32
TMUs
16
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
Theoretical Performance
5.000 GPixel/s
Pixel Rate
3.012 GPixel/s
20.00 GTexel/s
Texture Rate
12.05 GTexel/s
-
FP16 (half)
-
480.0 GFLOPS
FP32 (float)
289.0 GFLOPS
20.00 GFLOPS
FP64 (double)
24.08 GFLOPS
Graphics Processor
GK107
GPU Name
GF108
N13P-GS
GPU Variant
-
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.27 billion
Transistors
0.585 billion
118 mm²
Die Size
116 mm²
Board Design
32W
TDP
32W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
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9
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10
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