NVIDIA GeForce GT 640M Mac Edition vs NVIDIA GeForce GT 720M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 2GB VRAM GeForce GT 720M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640M Mac Edition 's Advantages
Larger VRAM bandwidth (40.00GB/s vs 12.80GB/s)
192 additional rendering cores
Lower TDP (32W vs 33W)
NVIDIA GeForce GT 720M 's Advantages
Released 10 months late
Boost Clock758MHz
More VRAM (2GB vs 512GB)
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
+96%
0.572 TFLOPS
GeForce GT 720M
0.291 TFLOPS
Graphics Card
Feb 2013
Release Date
Dec 2013
GeForce 600M
Generation
GeForce 700M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x8
Clock Speeds
-
Base Clock
719 MHz
-
Boost Clock
758 MHz
1250 MHz
Memory Clock
800 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
64bit
Memory Bus
64bit
40.00GB/s
Bandwidth
12.80GB/s
Render Config
-
-
-
-
-
-
384
Shading Units
192
32
TMUs
16
8
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
5.960 GPixel/s
Pixel Rate
3.032 GPixel/s
23.84 GTexel/s
Texture Rate
12.13 GTexel/s
-
-
-
572.2 GFLOPS
FP32 (float)
291.1 GFLOPS
23.84 GFLOPS
FP64 (double)
12.13 GFLOPS
Board Design
32W
TDP
33W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK107
GPU Name
GK208
N13P-GS
GPU Variant
GT 720M
Kepler
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
1.02 billion
118 mm²
Die Size
87 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.1
3.0
CUDA
3.5
5.1
Shader Model
5.1
