Radeon R9 M395X Mac Edition vs GeForce 8400M GS
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 256MB VRAM GeForce 8400M GS 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 8 years late
More VRAM (4GB vs 256GB)
Larger VRAM bandwidth (174.7GB/s vs 6.400GB/s)
2032 additional rendering cores
GeForce 8400M GS 's Advantages
Lower TDP (11W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
+14219%
3723
GeForce 8400M GS
26
Graphics Card
May 2015
Release Date
May 2007
Crystal System
Generation
GeForce 8M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-I
Clock Speeds
1365 MHz
Memory Clock
400 MHz
Memory
4GB
Memory Size
256MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
174.7GB/s
Bandwidth
6.400GB/s
Render Config
32
Compute Units
-
-
SM Count
2
2048
Shading Units
16
128
TMUs
8
32
ROPs
4
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
16 KB
Theoretical Performance
29.09 GPixel/s
Pixel Rate
1.600 GPixel/s
116.4 GTexel/s
Texture Rate
3.200 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
25.60 GFLOPS
232.7 GFLOPS
FP64 (double)
-
Board Design
250W
TDP
11W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Amethyst
GPU Name
G86
Amethyst XT
GPU Variant
NB8M-GS
GCN 3.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
5 billion
Transistors
0.21 billion
366 mm²
Die Size
127 mm²
Graphics Features
12 (12_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
6.3
Shader Model
4.0