NVIDIA GeForce GT 640M Mac Edition vs AMD Radeon R9 M295X Mac Edition
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 4GB VRAM Radeon R9 M295X Mac Edition 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
Lower TDP (32W vs 250W)
AMD Radeon R9 M295X Mac Edition 's Advantages
Released 1 years and 9 months late
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (174.3GB/s vs 40.00GB/s)
1664 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
0.572 TFLOPS
Radeon R9 M295X Mac Edition
+508%
3.482 TFLOPS
Graphics Card
Feb 2013
Release Date
Nov 2014
GeForce 600M
Generation
Crystal System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-B (3.0)
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
1362 MHz
Memory
512MB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
40.00GB/s
Bandwidth
174.3GB/s
Render Config
-
Compute Units
32
-
-
-
384
Shading Units
2048
32
TMUs
128
8
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
5.960 GPixel/s
Pixel Rate
27.20 GPixel/s
23.84 GTexel/s
Texture Rate
108.8 GTexel/s
-
FP16 (half)
3.482 TFLOPS
572.2 GFLOPS
FP32 (float)
3.482 TFLOPS
23.84 GFLOPS
FP64 (double)
217.6 GFLOPS
Board Design
32W
TDP
250W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK107
GPU Name
Amethyst
N13P-GS
GPU Variant
Amethyst XT
Kepler
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
5 billion
118 mm²
Die Size
366 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.0
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
6.3
