Product Compare

NVIDIA GeForce RTX 3080 Ti vs AMD Radeon RX 6900 XT

GPU GPU
Graphics Card
Release Date May 2021 Oct 2020
Generation GeForce 30 Navi II
Type Desktop Desktop
Bus Interface PCIe 4.0 x16 PCIe 4.0 x16
Clock Speeds
Base Clock 1365 MHz 1825 MHz
Boost Clock 1665 MHz 2250 MHz
Memory Clock 1188 MHz 2000 MHz
Memory
Memory Size 12GB 16GB
Memory Type GDDR6X GDDR6
Memory Bus 384bit 256bit
Bandwidth 912.4GB/s 512.0GB/s
Render Config
SM Count 80
Shading Units 10240 5120
TMUs 320 320
ROPs 112 128
Tensor Cores 320
RT Cores 80 80
L1 Cache 128 KB (per SM) 128 KB per Array
L2 Cache 6 MB 4 MB
Compute Units 80
L3 Cache 128 MB
Theoretical Performance
Pixel Rate 186.5 GPixel/s 288.0 GPixel/s
Texture Rate 532.8 GTexel/s 720.0 GTexel/s
FP16 (half) 34.10 TFLOPS 46.08 TFLOPS
FP32 (float) 34.10 TFLOPS 23.04 TFLOPS
FP64 (double) 532.8 GFLOPS 1440.0 GFLOPS
Graphics Processor
GPU Name GA102 Navi 21
GPU Variant GA102-225-A1 Navi 21 XTX(215-121000167)
Architecture Ampere RDNA 2.0
Foundry Samsung TSMC
Process Size 8 nm 7 nm
Transistors 28.3 billion 26.8 billion
Die Size 628 mm² 520 mm²
Board Design
TDP 350W 300W
Suggested PSU 750 W 700 W
Outputs 1x HDMI 2.13x DisplayPort 1.4a 1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors 1x 12-pin 2x 8-pin
Graphics Features
DirectX 12 Ultimate (12_2) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 3.0 2.1
Vulkan 1.3 1.4
CUDA 8.6
Shader Model 6.6 6.8
Benchmarks
3DMark Time Spy 19629 20764