AMD Radeon Instinct MI355X vs AMD Radeon HD 7990
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Apr 2013
Generation
Radeon Instinct
Southern Islands
Type
Professional
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
950 MHz
Boost Clock
2400 MHz
1000 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
288GB
3GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
384bit
Bandwidth
8.19TB/s
288.0GB/s
Render Config
Compute Units
256
32
Shading Units
16384
2048
TMUs
1024
128
ROPs
0
32
Tensor Cores
1216
—
L1 Cache
32 KB (per CU)
16 KB (per CU)
L2 Cache
32 MB
768 KB
L3 Cache
256 MB
—
Theoretical Performance
Pixel Rate
0 MPixel/s
32.00 GPixel/s
Texture Rate
2457.6 GTexel/s
128.0 GTexel/s
FP16 (half)
78.64 TFLOPS
—
FP32 (float)
78.64 TFLOPS
4.096 TFLOPS
FP64 (double)
39.32 TFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
MI350 256CU
Malta
Architecture
CDNA 4.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
185 billion
4.313 billion
Die Size
Unknown
365 mm²
GPU Variant
—
Malta XT(215-0849026)
Board Design
TDP
1400W
375W
Suggested PSU
1800 W
750 W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Graphics Features
DirectX
N/A
12 (11_1)
OpenGL
N/A
4.6
OpenCL
3.0
1.2
Vulkan
N/A
1.2
Shader Model
N/A
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.