NVIDIA GeForce GT 640M LE vs NVIDIA GeForce Go 6800
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M LE and 256MB VRAM GeForce Go 6800 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640M LE 's Advantages
Released 7 years and 6 months late
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (50.24GB/s vs 35.20GB/s)
96 additional rendering cores
Lower TDP (32W vs 45W)
Score
Graphics Card
May 2012
Release Date
Nov 2004
GeForce 600M
Generation
GeForce Go 6
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
MXM-III
Clock Speeds
-
-
-
-
-
-
785 MHz
Memory Clock
550 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
128bit
Memory Bus
256bit
50.24GB/s
Bandwidth
35.20GB/s
Render Config
-
-
-
2
SM Count
-
96
Shading Units
-
16
TMUs
12
4
ROPs
8
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
256 KB
L2 Cache
-
-
-
-
Theoretical Performance
3.012 GPixel/s
Pixel Rate
2.400 GPixel/s
12.05 GTexel/s
Texture Rate
3.600 GTexel/s
-
-
-
289.0 GFLOPS
FP32 (float)
-
24.08 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
45W
-
-
-
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
None
Graphics Processor
GF108
GPU Name
NV41
-
-
-
Fermi
Architecture
Curie
TSMC
Foundry
TSMC
40 nm
Process Size
130 nm
0.585 billion
Transistors
0.19 billion
116 mm²
Die Size
225 mm²
Graphics Features
12 (11_0)
DirectX
9.0c (9_3)
4.6
OpenGL
2.0 (full)
2.1 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.1
CUDA
-
5.1
Shader Model
3.0
