AMD Radeon R9 M390X vs AMD Radeon Vega 8
GPU Specs Compare
Graphics Card
Release Date
May 2015
Jan 2021
Generation
Crystal System
Cezanne
Type
Mobile
Integrated
Bus Interface
PCIe 3.0 x16
IGP
Clock Speeds
Memory Clock
1250 MHz
System Shared
Base Clock
-
300 MHz
Boost Clock
-
2000 MHz
Memory
Memory Size
4GB
System Shared
Memory Type
GDDR5
System Shared
Memory Bus
256bit
System Shared
Bandwidth
160.0GB/s
System Dependent
Render Config
Compute Units
32
8
Shading Units
2048
512
TMUs
128
32
ROPs
32
8
L1 Cache
16 KB (per CU)
-
L2 Cache
512 KB
-
Theoretical Performance
Pixel Rate
23.14 GPixel/s
16.00 GPixel/s
Texture Rate
92.54 GTexel/s
64.00 GTexel/s
FP16 (half)
2.961 TFLOPS
4.096 TFLOPS
FP32 (float)
2.961 TFLOPS
2.048 TFLOPS
FP64 (double)
185.1 GFLOPS
128.0 GFLOPS
Graphics Processor
GPU Name
Amethyst
Cezanne
GPU Variant
Amethyst XT
-
Architecture
GCN 3.0
GCN 5.1
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
5 billion
9.8 billion
Die Size
366 mm²
156 mm²
Board Design
TDP
75W
45W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.2
Shader Model
6.3
6.4
📊 Benchmark
3DMark Time Spy
-
893
3DMark Time Spy Extreme
-
423