AMD Radeon Pro Vega 20 vs AMD Radeon R9 M395X
GPU Specs Compare
Graphics Card
Release Date
Nov 2018
May 2015
Generation
Radeon Pro Mac
Crystal System
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
815 MHz
-
Boost Clock
1283 MHz
-
Memory Clock
740 MHz
1250 MHz
Memory
Memory Size
4GB
8GB
Memory Type
HBM2
GDDR5
Memory Bus
1024bit
256bit
Bandwidth
189.4GB/s
160.0GB/s
Render Config
Compute Units
20
32
Shading Units
1280
2048
TMUs
80
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
512 KB
Theoretical Performance
Pixel Rate
41.06 GPixel/s
23.14 GPixel/s
Texture Rate
102.6 GTexel/s
92.54 GTexel/s
FP16 (half)
6.569 TFLOPS
2.961 TFLOPS
FP32 (float)
3.284 TFLOPS
2.961 TFLOPS
FP64 (double)
205.3 GFLOPS
185.1 GFLOPS
Graphics Processor
GPU Name
Vega 12
Amethyst
GPU Variant
Vega 12 XTA
Amethyst XT
Architecture
GCN 5.0
GCN 3.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
Unknown
5 billion
Die Size
Unknown
366 mm²
Board Design
TDP
100W
75W
Outputs
No outputs
No outputs
Power Connectors
-
None
Graphics Features
DirectX
12 (12_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.2
1.2
Shader Model
6.3
6.3
📊 Benchmark
3DMark Time Spy
2,596
2,514
3DMark Time Spy Extreme
1,211
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