GeForce GT 640M Mac Edition vs GeForce 8600M GT Mac Edition
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 512MB VRAM GeForce 8600M GT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GT 640M Mac Edition 's Advantages
Released 5 years and 4 months late
Larger VRAM bandwidth (40.00GB/s vs 20.32GB/s)
352 additional rendering cores
GeForce 8600M GT Mac Edition 's Advantages
Lower TDP (20W vs 32W)
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
+853%
572
GeForce 8600M GT Mac Edition
60
Graphics Card
Feb 2013
Release Date
Oct 2007
GeForce 600M
Generation
GeForce 8M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-II
Clock Speeds
1250 MHz
Memory Clock
635 MHz
Memory
512MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
128bit
40.00GB/s
Bandwidth
20.32GB/s
Render Config
-
SM Count
4
384
Shading Units
32
32
TMUs
16
8
ROPs
8
16 KB (per SMX)
L1 Cache
-
128 KB
L2 Cache
32 KB
Theoretical Performance
5.960 GPixel/s
Pixel Rate
3.760 GPixel/s
23.84 GTexel/s
Texture Rate
7.520 GTexel/s
572.2 GFLOPS
FP32 (float)
60.16 GFLOPS
23.84 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
20W
No outputs
Outputs
No outputs
Graphics Processor
GK107
GPU Name
G84
N13P-GS
GPU Variant
NB8P-GS
Kepler
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
1.27 billion
Transistors
0.289 billion
118 mm²
Die Size
169 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
