Radeon R9 M395X Mac Edition vs GeForce GT 620M
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 1024MB VRAM GeForce GT 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 M395X Mac Edition 's Advantages
Released 2 years and 9 months late
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 28.80GB/s)
1952 additional rendering cores
GeForce GT 620M 's Advantages
Lower TDP (15W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
+1371%
3723
GeForce GT 620M
253
Graphics Card
May 2015
Release Date
Aug 2012
Crystal System
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
1365 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
28.80GB/s
Render Config
32
Compute Units
-
-
SM Count
2
2048
Shading Units
96
128
TMUs
16
32
ROPs
4
16 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
Theoretical Performance
29.09 GPixel/s
Pixel Rate
2.640 GPixel/s
116.4 GTexel/s
Texture Rate
10.56 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
253.4 GFLOPS
232.7 GFLOPS
FP64 (double)
21.12 GFLOPS
Board Design
250W
TDP
15W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Amethyst
GPU Name
GF108
Amethyst XT
GPU Variant
N13P-GLP-A1
GCN 3.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5 billion
Transistors
0.585 billion
366 mm²
Die Size
116 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
6.3
Shader Model
5.1