NVIDIA GeForce RTX 4080 vs AMD Radeon RX 6900 XT
GPU Specs Compare
Graphics Card
Release Date
Sep 2022
Oct 2020
Generation
GeForce 40
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
2205 MHz
1825 MHz
Boost Clock
2505 MHz
2250 MHz
Memory Clock
1400 MHz
2000 MHz
Memory
Memory Size
16GB
16GB
Memory Type
GDDR6X
GDDR6
Memory Bus
256bit
256bit
Bandwidth
716.8GB/s
512.0GB/s
Render Config
SM Count
76
-
Shading Units
9728
5120
TMUs
304
320
ROPs
112
128
Tensor Cores
304
-
RT Cores
76
80
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
64 MB
4 MB
Compute Units
-
80
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
280.6 GPixel/s
288.0 GPixel/s
Texture Rate
761.5 GTexel/s
720.0 GTexel/s
FP16 (half)
48.74 TFLOPS
46.08 TFLOPS
FP32 (float)
48.74 TFLOPS
23.04 TFLOPS
FP64 (double)
761.5 GFLOPS
1440.0 GFLOPS
Graphics Processor
GPU Name
AD103
Navi 21
GPU Variant
AD103-300-A1
Navi 21 XTX(215-121000167)
Architecture
Ada Lovelace
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
45.9 billion
26.8 billion
Die Size
379 mm²
520 mm²
Board Design
TDP
320W
300W
Suggested PSU
700 W
700 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
1x 16-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
8.9
-
Shader Model
6.7
6.8
📊 Benchmark
3DMark Time Spy
28,173
20,764
3DMark Time Spy Extreme
14,002
-