NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon Pro V620
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Nov 2021
Generation
Navi IV
Radeon Pro
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1700 MHz
1825 MHz
Boost Clock
3130 MHz
2200 MHz
Memory Clock
2518 MHz
2000 MHz
Memory
Memory Size
8GB
32GB
Memory Type
GDDR6
GDDR6
Memory Bus
128bit
256bit
Bandwidth
322.3GB/s
512.0GB/s
Render Config
SM Count
80
—
Compute Units
32
72
Shading Units
2048
4608
TMUs
128
288
ROPs
64
128
Tensor Cores
320
—
RT Cores
32
72
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
4 MB
4 MB
L3 Cache
32 MB
128 MB
Theoretical Performance
Pixel Rate
200.3 GPixel/s
281.6 GPixel/s
Texture Rate
400.6 GTexel/s
633.6 GTexel/s
FP16 (half)
51.28 TFLOPS
40.55 TFLOPS
FP32 (float)
25.64 TFLOPS
20.28 TFLOPS
FP64 (double)
801.3 GFLOPS
1267 GFLOPS
Graphics Processor
GPU Name
Navi 44
Navi 21
GPU Variant
Navi 44 XT(215-176400102)
Navi 21 XT(215-121000177)
Architecture
RDNA 4.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
7 nm
Transistors
29.7 billion
26.8 billion
Die Size
199 mm²
520 mm²
Board Design
TDP
150W
300W
Suggested PSU
450 W
700 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)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
2.1
Vulkan
1.3
1.3
CUDA
8.6
—
Shader Model
6.8
6.5
Benchmark
Blender
5,956
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.