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GPU Comparison
AMD Radeon Pro 555X vs AMD Radeon R9 M395X
AMD Radeon Pro 555X vs AMD Radeon R9 M395X
VS
AMD Radeon Pro 555X
AMD Radeon R9 M395X
We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 8GB VRAM Radeon R9 M395X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Pro 555X 's Advantages
Released 3 years and 2 months late
AMD Radeon R9 M395X 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (160.0GB/s vs 94.08GB/s)
1280 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Pro 555X
1.393 TFLOPS
Radeon R9 M395X
+112%
2.961 TFLOPS
Radeon Pro 555X
VS
Radeon R9 M395X
Graphics Card
Jul 2018
Release Date
May 2015
Radeon Pro Mac
Generation
Crystal System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1470 MHz
Memory Clock
1250 MHz
Memory
4GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
94.08GB/s
Bandwidth
160.0GB/s
Render Config
-
SM Count
-
12
Compute Units
32
768
Shading Units
2048
48
TMUs
128
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
512 KB
Theoretical Performance
14.51 GPixel/s
Pixel Rate
23.14 GPixel/s
43.54 GTexel/s
Texture Rate
92.54 GTexel/s
1393 GFLOPS
FP16 (half)
2.961 TFLOPS
1393 GFLOPS
FP32 (float)
2.961 TFLOPS
87.07 GFLOPS
FP64 (double)
185.1 GFLOPS
Graphics Processor
Polaris 21
GPU Name
Amethyst
Polaris 21 PRO
GPU Variant
Amethyst XT
GCN 4.0
Architecture
GCN 3.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
3 billion
Transistors
5 billion
123 mm²
Die Size
366 mm²
Board Design
75W
TDP
75W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2
Vulkan
1.2
-
CUDA
-
6.4
Shader Model
6.3
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