AMD Radeon R9 M395X Mac Edition vs AMD Radeon R7 A265
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 2GB VRAM Radeon R7 A265 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 1 years and 4 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (174.7GB/s vs 28.80GB/s)
1664 additional rendering cores
AMD Radeon R7 A265 's Advantages
Boost Clock825MHz
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
+488%
3.723 TFLOPS
Radeon R7 A265
0.633 TFLOPS
Graphics Card
May 2015
Release Date
Jan 2014
Crystal System
Generation
All-In-One
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
725 MHz
-
Boost Clock
825 MHz
1365 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
28.80GB/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
256 KB
-
-
-
Theoretical Performance
29.09 GPixel/s
Pixel Rate
6.600 GPixel/s
116.4 GTexel/s
Texture Rate
19.80 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
633.6 GFLOPS
232.7 GFLOPS
FP64 (double)
39.60 GFLOPS
Board Design
250W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
Amethyst
GPU Name
Opal
Amethyst XT
GPU Variant
Opal XT
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
0.95 billion
366 mm²
Die Size
77 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
2.1 (1.2)
1.2
Vulkan
1.2.170
-
-
-
6.3
Shader Model
6.5 (5.1)
