AMD Radeon R9 390X vs AMD Instinct MI300X
GPU Specs Compare
Graphics Card
Release Date
Jun 2015
Dec 2023
Generation
Pirate Islands
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1500 MHz
2525 MHz
Base Clock
-
1000 MHz
Boost Clock
-
2100 MHz
Memory
Memory Size
8GB
192GB
Memory Type
GDDR5
HBM3
Memory Bus
512bit
8192bit
Bandwidth
384.0GB/s
10.3TB/s
Render Config
Compute Units
44
304
Shading Units
2816
19456
TMUs
176
1216
ROPs
64
0
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
16 MB
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
67.20 GPixel/s
0 MPixel/s
Texture Rate
184.8 GTexel/s
2553.6 GTexel/s
FP32 (float)
5.914 TFLOPS
81.72 TFLOPS
FP64 (double)
739.2 GFLOPS
81.72 TFLOPS
FP16 (half)
-
653.7 TFLOPS
Graphics Processor
GPU Name
Grenada
Aqua Vanjaram
GPU Variant
Grenada XT(215-0880004)
-
Architecture
GCN 2.0
CDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
6.2 billion
153 billion
Die Size
438 mm²
1017 mm²
Board Design
TDP
275W
750W
Suggested PSU
600 W
1150 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
None
Graphics Features
DirectX
12 (12_0)
N/A
OpenGL
4.6
N/A
OpenCL
2.0
3.0
Vulkan
1.2
N/A
Shader Model
6.3
N/A