NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon Instinct MI250
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Nov 2021
Generation
Navi IV
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1700 MHz
1000 MHz
Boost Clock
3130 MHz
1700 MHz
Memory Clock
2518 MHz
1600 MHz
Memory
Memory Size
8GB
128GB
Memory Type
GDDR6
HBM2e
Memory Bus
128bit
8192bit
Bandwidth
322.3GB/s
3277GB/s
Render Config
SM Count
80
—
Compute Units
32
208
Shading Units
2048
13312
TMUs
128
832
ROPs
64
0
Tensor Cores
320
—
RT Cores
32
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
16 MB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
200.3 GPixel/s
0 MPixel/s
Texture Rate
400.6 GTexel/s
1414 GTexel/s
FP16 (half)
51.28 TFLOPS
362.1 TFLOPS
FP32 (float)
25.64 TFLOPS
45.26 TFLOPS
FP64 (double)
801.3 GFLOPS
45.26 TFLOPS
Graphics Processor
GPU Name
Navi 44
Aldebaran
GPU Variant
Navi 44 XT(215-176400102)
Aldebaran
Architecture
RDNA 4.0
CDNA 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
6 nm
Transistors
29.7 billion
58.2 billion
Die Size
199 mm²
Unknown
Board Design
TDP
150W
500W
Suggested PSU
450 W
900 W
Outputs
1x HDMI 2.1b2x DisplayPort 2.1a
No outputs
Power Connectors
1x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.2
3.0
Vulkan
1.3
N/A
CUDA
8.6
—
Shader Model
6.8
N/A
Benchmark
Blender
5,956
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.