NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon RX 6650 XT
GPU Specs Compare
Graphics Card
Release Date
Jun 2025
May 2022
Generation
Navi IV
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1700 MHz
2055 MHz
Boost Clock
3130 MHz
2635 MHz
Memory Clock
2518 MHz
2190 MHz
Memory
Memory Size
8GB
8GB
Memory Type
GDDR6
GDDR6
Memory Bus
128bit
128bit
Bandwidth
322.3GB/s
280.3GB/s
Render Config
SM Count
80
-
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
64
64
Tensor Cores
320
-
RT Cores
32
32
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
4 MB
2 MB
L3 Cache
32 MB
32 MB
Theoretical Performance
Pixel Rate
200.3 GPixel/s
168.6 GPixel/s
Texture Rate
400.6 GTexel/s
337.3 GTexel/s
FP16 (half)
51.28 TFLOPS
21.59 TFLOPS
FP32 (float)
25.64 TFLOPS
10.79 TFLOPS
FP64 (double)
801.3 GFLOPS
674.6 GFLOPS
Graphics Processor
GPU Name
Navi 44
Navi 23
GPU Variant
Navi 44 XT(215-176400102)
Navi 23 KXT(215-130000136)
Architecture
RDNA 4.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
7 nm
Transistors
29.7 billion
11.06 billion
Die Size
199 mm²
237 mm²
Board Design
TDP
150W
176W
Suggested PSU
450 W
450 W
Outputs
1x HDMI 2.1b2x DisplayPort 2.1a
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
1x 8-pin
1x 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
-