AMD Radeon RX 6900 XT vs NVIDIA GeForce RTX 3080 Ti Mobile
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Jan 2022
Generation
Navi II
GeForce 30 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1825 MHz
810 MHz
Boost Clock
2250 MHz
1260 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
16GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
512.0GB/s
Render Config
Compute Units
80
—
Shading Units
5120
7424
TMUs
320
232
ROPs
128
96
RT Cores
80
58
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
4 MB
4 MB
L3 Cache
128 MB
—
SM Count
—
58
Tensor Cores
—
232
Theoretical Performance
Pixel Rate
288.0 GPixel/s
121.0 GPixel/s
Texture Rate
720.0 GTexel/s
292.3 GTexel/s
FP16 (half)
46.08 TFLOPS
18.71 TFLOPS
FP32 (float)
23.04 TFLOPS
18.71 TFLOPS
FP64 (double)
1440.0 GFLOPS
292.3 GFLOPS
Graphics Processor
GPU Name
Navi 21
GA103S
GPU Variant
Navi 21 XTX(215-121000167)
GN20-E8-A1
Architecture
RDNA 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
7 nm
8 nm
Transistors
26.8 billion
Unknown
Die Size
520 mm²
496 mm²
Board Design
TDP
300W
115W
Suggested PSU
700 W
—
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.4
1.3
Shader Model
6.8
6.5
CUDA
—
8.6
Benchmark
3DMark Time Spy
20,764
12,905
3DMark Time Spy Extreme
—
6,164
▲ Specs Compare
Data sourced from official specifications and benchmark tests.