AMD Radeon RX 6300M vs AMD Radeon R9 390X
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Jun 2015
Generation
Mobility Radeon
Pirate Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x4
PCIe 3.0 x16
Clock Speeds
Base Clock
2000 MHz
-
Boost Clock
2400 MHz
-
Memory Clock
2250 MHz
1500 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
32bit
512bit
Bandwidth
72.00GB/s
384.0GB/s
Render Config
Compute Units
12
44
Shading Units
768
2816
TMUs
48
176
ROPs
32
64
RT Cores
12
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
1024 KB
1024 KB
L3 Cache
8 MB
-
Theoretical Performance
Pixel Rate
76.80 GPixel/s
67.20 GPixel/s
Texture Rate
115.2 GTexel/s
184.8 GTexel/s
FP16 (half)
7.373 TFLOPS
-
FP32 (float)
3.686 TFLOPS
5.914 TFLOPS
FP64 (double)
230.4 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
Navi 24
Grenada
GPU Variant
Navi 24 XML
Grenada XT(215-0880004)
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
6 nm
28 nm
Transistors
5.4 billion
6.2 billion
Die Size
107 mm²
438 mm²
Board Design
TDP
35W
275W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
-
600 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.2
2.0
Vulkan
1.3
1.2
Shader Model
6.6
6.3