NVIDIA GeForce GT 640M vs NVIDIA GeForce 8800M GTS
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M and 512MB VRAM GeForce 8800M GTS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640M 's Advantages
Released 4 years and 4 months late
More VRAM (2GB vs 512GB)
320 additional rendering cores
Lower TDP (32W vs 50W)
NVIDIA GeForce 8800M GTS 's Advantages
Larger VRAM bandwidth (51.20GB/s vs 28.80GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 640M
+200%
0.48 TFLOPS
GeForce 8800M GTS
0.16 TFLOPS
Graphics Card
Mar 2012
Release Date
Nov 2007
GeForce 600M
Generation
GeForce 8M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-HE
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
512MB
DDR3
Memory Type
GDDR3
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
51.20GB/s
Render Config
-
-
-
-
SM Count
8
384
Shading Units
64
32
TMUs
32
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
-
256 KB
L2 Cache
64 KB
-
-
-
Theoretical Performance
5.000 GPixel/s
Pixel Rate
8.000 GPixel/s
20.00 GTexel/s
Texture Rate
16.00 GTexel/s
-
-
-
480.0 GFLOPS
FP32 (float)
160.0 GFLOPS
20.00 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
50W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK107
GPU Name
G92
N13P-GS
GPU Variant
NB8E-GT-A2
Kepler
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
1.27 billion
Transistors
0.754 billion
118 mm²
Die Size
324 mm²
Graphics Features
12 (11_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
1.1
5.1
Shader Model
4.0
