AMD Radeon Instinct MI350X vs AMD Radeon R9 390
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
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
2200 MHz
—
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
288GB
8GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
512bit
Bandwidth
8.19TB/s
384.0GB/s
Render Config
Compute Units
256
40
Shading Units
16384
2560
TMUs
1024
160
ROPs
0
64
Tensor Cores
1024
—
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
2252.8 GTexel/s
160.0 GTexel/s
FP16 (half)
72.09 TFLOPS
—
FP32 (float)
72.09 TFLOPS
5.120 TFLOPS
FP64 (double)
36.04 TFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
MI350 256CU
Grenada
Architecture
CDNA 4.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
185 billion
6.2 billion
Die Size
Unknown
438 mm²
GPU Variant
—
Grenada PRO(215-0880030)
Board Design
TDP
1000W
275W
Suggested PSU
1400 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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.