Home GPU Comparison AMD Radeon R9 M395X Mac Edition vs AMD Radeon R7 M260

AMD Radeon R9 M395X Mac Edition vs AMD Radeon R7 M260

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 2GB VRAM Radeon R7 M260 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
Released 11 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)
1664 additional rendering cores
AMD Radeon R7 M260 's Advantages
Boost Clock980MHz

Score

Benchmark

FP32 (float)
Radeon R9 M395X Mac Edition +395%
3.723 TFLOPS
Radeon R7 M260
0.752 TFLOPS
VS

Graphics Card

May 2015
Release Date
Jun 2014
Crystal System
Generation
Gem System
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8

Clock Speeds

-
Base Clock
940 MHz
-
Boost Clock
980 MHz
1365 MHz
Memory Clock
900 MHz

Memory

4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
174.7GB/s
Bandwidth
14.40GB/s

Render Config

32
Compute Units
6
-
-
-
2048
Shading Units
384
128
TMUs
24
32
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

29.09 GPixel/s
Pixel Rate
7.840 GPixel/s
116.4 GTexel/s
Texture Rate
23.52 GTexel/s
3.723 TFLOPS
FP16 (half)
752.6 GFLOPS
3.723 TFLOPS
FP32 (float)
752.6 GFLOPS
232.7 GFLOPS
FP64 (double)
47.04 GFLOPS

Board Design

250W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-

Graphics Processor

Amethyst
GPU Name
Topaz
Amethyst XT
GPU Variant
Topaz XT (216-0858020)
GCN 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.55 billion
366 mm²
Die Size
125 mm²

Graphics Features

12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.2.170
-
-
-
6.3
Shader Model
6.5

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