Radeon R9 M395X Mac Edition vs Mobility Radeon HD 4870 X2
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 1024MB VRAM Mobility Radeon HD 4870 X2 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 6 years and 4 months late
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 89.60GB/s)
1248 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
+323%
3723
Mobility Radeon HD 4870 X2
880
Graphics Card
May 2015
Release Date
Jan 2009
Crystal System
Generation
M9x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
1365 MHz
Memory Clock
700 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
174.7GB/s
Bandwidth
89.60GB/s
Render Config
32
Compute Units
10
2048
Shading Units
800
128
TMUs
40
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
8.800 GPixel/s
116.4 GTexel/s
Texture Rate
22.00 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
880.0 GFLOPS
232.7 GFLOPS
FP64 (double)
176.0 GFLOPS
Board Design
250W
TDP
Unknown
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
None
Graphics Processor
Amethyst
GPU Name
M98
Amethyst XT
GPU Variant
M98 XT L2
(216-0732023)
GCN 3.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
5 billion
Transistors
0.956 billion
366 mm²
Die Size
256 mm²
Graphics Features
12 (12_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.0
OpenCL
1.1
1.2
Vulkan
N/A
6.3
Shader Model
4.1
