NVIDIA GeForce GT 640M Mac Edition vs NVIDIA GeForce MX250
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 2GB VRAM GeForce MX250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce MX250 's Advantages
Boost Clock1038MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (48.06GB/s vs 40.00GB/s)
Lower TDP (10W vs 32W)
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
0.572 TFLOPS
GeForce MX250
+39%
0.797 TFLOPS
Graphics Card
Feb 2013
Release Date
Unknown
GeForce 600M
Generation
GeForce MX
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x4
Clock Speeds
-
Base Clock
937 MHz
-
Boost Clock
1038 MHz
1250 MHz
Memory Clock
1502 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
64bit
40.00GB/s
Bandwidth
48.06GB/s
Render Config
-
-
-
-
SM Count
3
384
Shading Units
384
32
TMUs
24
8
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
48 KB (per SM)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
5.960 GPixel/s
Pixel Rate
16.61 GPixel/s
23.84 GTexel/s
Texture Rate
24.91 GTexel/s
-
FP16 (half)
12.46 GFLOPS
572.2 GFLOPS
FP32 (float)
797.2 GFLOPS
23.84 GFLOPS
FP64 (double)
24.91 GFLOPS
Board Design
32W
TDP
10W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GK107
GPU Name
GP108B
N13P-GS
GPU Variant
-
Kepler
Architecture
Pascal
TSMC
Foundry
Samsung
28 nm
Process Size
14 nm
1.27 billion
Transistors
1.8 billion
118 mm²
Die Size
74 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_1)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
6.1
5.1
Shader Model
6.4
