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GPU Comparison
AMD Radeon R5 A255 vs AMD Radeon R9 M295X
AMD Radeon R5 A255 vs AMD Radeon R9 M295X
VS
AMD Radeon R5 A255
AMD Radeon R9 M295X
We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 4GB VRAM Radeon R9 M295X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R5 A255 's Advantages
Boost Clock940MHz
AMD Radeon R9 M295X 's Advantages
Released 10 months late
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)
1664 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R5 A255
0.721 TFLOPS
Radeon R9 M295X
+310%
2.961 TFLOPS
Radeon R5 A255
VS
Radeon R9 M295X
Graphics Card
Jan 2014
Release Date
Nov 2014
All-In-One
Generation
Crystal System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)
Clock Speeds
925 MHz
Base Clock
-
940 MHz
Boost Clock
-
1000 MHz
Memory Clock
1250 MHz
Memory
1024MB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
64.00GB/s
Bandwidth
160.0GB/s
Render Config
-
SM Count
-
6
Compute Units
32
384
Shading Units
2048
24
TMUs
128
8
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
Theoretical Performance
7.520 GPixel/s
Pixel Rate
23.14 GPixel/s
22.56 GTexel/s
Texture Rate
92.54 GTexel/s
-
FP16 (half)
2.961 TFLOPS
721.9 GFLOPS
FP32 (float)
2.961 TFLOPS
-
FP64 (double)
185.1 GFLOPS
Graphics Processor
Topaz
GPU Name
Amethyst
Topaz PRO (216-0858030)
GPU Variant
Amethyst XT
GCN 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.55 billion
Transistors
5 billion
125 mm²
Die Size
366 mm²
Board Design
Unknown
TDP
250W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2.170
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
6.3
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