AMD Radeon R9 M390X vs AMD Radeon RX 6300M
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Jan 2022
Generation
Crystal System
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x4
Clock Speeds
Memory Clock
1250 MHz
2250 MHz
Base Clock
—
2000 MHz
Boost Clock
—
2400 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
32bit
Bandwidth
160.0GB/s
72.00GB/s
Render Config
Compute Units
32
12
Shading Units
2048
768
TMUs
128
48
ROPs
32
32
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
1024 KB
RT Cores
—
12
L3 Cache
—
8 MB
Theoretical Performance
Pixel Rate
23.14 GPixel/s
76.80 GPixel/s
Texture Rate
92.54 GTexel/s
115.2 GTexel/s
FP16 (half)
2.961 TFLOPS
7.373 TFLOPS
FP32 (float)
2.961 TFLOPS
3.686 TFLOPS
FP64 (double)
185.1 GFLOPS
230.4 GFLOPS
Graphics Processor
GPU Name
Amethyst
Navi 24
GPU Variant
Amethyst XT
Navi 24 XML
Architecture
GCN 3.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
6 nm
Transistors
5 billion
5.4 billion
Die Size
366 mm²
107 mm²
Board Design
TDP
75W
35W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.2
Vulkan
1.2
1.3
Shader Model
6.3
6.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.