NVIDIA GeForce RTX 3080 Ti Mobile vs AMD Radeon Instinct MI355X
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Jun 2025
Generation
GeForce 30 Mobile
Radeon Instinct
Type
Mobile
Professional
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
810 MHz
1000 MHz
Boost Clock
1260 MHz
2400 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
16GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
256bit
8192bit
Bandwidth
512.0GB/s
8.19TB/s
Render Config
SM Count
58
—
Shading Units
7424
16384
TMUs
232
1024
ROPs
96
0
Tensor Cores
232
1216
RT Cores
58
—
L1 Cache
128 KB (per SM)
32 KB (per CU)
L2 Cache
4 MB
32 MB
Compute Units
—
256
L3 Cache
—
256 MB
Theoretical Performance
Pixel Rate
121.0 GPixel/s
0 MPixel/s
Texture Rate
292.3 GTexel/s
2457.6 GTexel/s
FP16 (half)
18.71 TFLOPS
78.64 TFLOPS
FP32 (float)
18.71 TFLOPS
78.64 TFLOPS
FP64 (double)
292.3 GFLOPS
39.32 TFLOPS
Graphics Processor
GPU Name
GA103S
MI350 256CU
GPU Variant
GN20-E8-A1
—
Architecture
Ampere
CDNA 4.0
Foundry
Samsung
TSMC
Process Size
8 nm
3 nm
Transistors
Unknown
185 billion
Die Size
496 mm²
Unknown
Board Design
TDP
115W
1400W
Outputs
No outputs
No outputs
Power Connectors
None
None
Suggested PSU
—
1800 W
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.6
—
Shader Model
6.5
N/A
Benchmark
3DMark Time Spy
12,905
—
3DMark Time Spy Extreme
6,164
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.