AMD Radeon Instinct MI300X vs AMD Radeon R9 390
GPU Specs Compare
Graphics Card
Release Date
Dec 2023
Jun 2015
Generation
Radeon Instinct
Pirate Islands
Type
Professional
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
-
Boost Clock
2100 MHz
-
Memory Clock
1300 MHz
1500 MHz
Memory
Memory Size
192GB
8GB
Memory Type
HBM3
GDDR5
Memory Bus
8192bit
512bit
Bandwidth
5.32TB/s
384.0GB/s
Render Config
Compute Units
304
40
Shading Units
19456
2560
TMUs
1216
160
ROPs
0
64
Tensor Cores
1216
-
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
16 MB
1024 KB
L3 Cache
256 MB
-
Theoretical Performance
Pixel Rate
0 MPixel/s
64.00 GPixel/s
Texture Rate
2553.6 GTexel/s
160.0 GTexel/s
FP16 (half)
81.72 TFLOPS
-
FP32 (float)
81.72 TFLOPS
5.120 TFLOPS
FP64 (double)
40.86 TFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Aqua Vanjaram
Grenada
Architecture
CDNA 3.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
153 billion
6.2 billion
Die Size
1017 mm²
438 mm²
GPU Variant
-
Grenada PRO(215-0880030)
Board Design
TDP
750W
275W
Suggested PSU
1150 W
600 W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
N/A
12 (12_0)
OpenGL
N/A
4.6
OpenCL
3.0
2.0
Vulkan
N/A
1.2
Shader Model
N/A
6.3
📊 Benchmark
3DMark Time Spy
-
3,964
3DMark Time Spy Extreme
-
1,931