GeForce GT 640M Mac Edition vs GeForce GT 120M Mac Edition
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 256MB VRAM GeForce GT 120M 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 4 years and 2 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (40.00GB/s vs 25.34GB/s)
352 additional rendering cores
GeForce GT 120M Mac Edition 's Advantages
Lower TDP (14W vs 32W)
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
+615%
572
GeForce GT 120M Mac Edition
80
Graphics Card
Feb 2013
Release Date
Dec 2008
GeForce 600M
Generation
GeForce 100M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1250 MHz
Memory Clock
792 MHz
Memory
512MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
128bit
40.00GB/s
Bandwidth
25.34GB/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
4.000 GPixel/s
23.84 GTexel/s
Texture Rate
8.000 GTexel/s
572.2 GFLOPS
FP32 (float)
80.00 GFLOPS
23.84 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
14W
No outputs
Outputs
No outputs
Graphics Processor
GK107
GPU Name
G96C
N13P-GS
GPU Variant
-
Kepler
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
1.27 billion
Transistors
0.314 billion
118 mm²
Die Size
121 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
