AMD Radeon R9 M395X Mac Edition vs AMD Radeon E8870
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 4GB VRAM Radeon E8870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M395X Mac Edition 's Advantages
Larger VRAM bandwidth (174.7GB/s vs 96.00GB/s)
1280 additional rendering cores
AMD Radeon E8870 's Advantages
Lower TDP (75W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
+142%
3.723 TFLOPS
Radeon E8870
1.536 TFLOPS
Graphics Card
May 2015
Release Date
Sep 2015
Crystal System
Generation
Embedded
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-B (3.0)
Clock Speeds
-
-
-
-
-
-
1365 MHz
Memory Clock
1500 MHz
Memory
4GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
96.00GB/s
Render Config
32
Compute Units
12
-
-
-
2048
Shading Units
768
128
TMUs
48
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
29.09 GPixel/s
Pixel Rate
16.00 GPixel/s
116.4 GTexel/s
Texture Rate
48.00 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
1.536 TFLOPS
232.7 GFLOPS
FP64 (double)
96.00 GFLOPS
Board Design
250W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
Amethyst
GPU Name
Saturn
Amethyst XT
GPU Variant
Saturn PRO
GCN 3.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
2.08 billion
366 mm²
Die Size
160 mm²
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.0
1.2
Vulkan
1.2
-
-
-
6.3
Shader Model
6.3
