Home GPU Comparison AMD Radeon RX 6900 XTX vs NVIDIA GeForce RTX 4080 Ti

AMD Radeon RX 6900 XTX vs NVIDIA GeForce RTX 4080 Ti

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 16GB VRAM GeForce RTX 4080 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages
Lower TDP (330W vs 400W)
NVIDIA GeForce RTX 4080 Ti 's Advantages
Boost Clock has increased by 7% (2610MHz vs 2435MHz)
Larger VRAM bandwidth (678.4GB/s vs 576.0GB/s)
8960 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 6900 XTX
24.93 TFLOPS
GeForce RTX 4080 Ti +194%
73.5 TFLOPS
VS

Graphics Card

Unknown
Release Date
Unknown
Navi II
Generation
GeForce 40
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

2075 MHz
Base Clock
2340 MHz
2435 MHz
Boost Clock
2610 MHz
2250 MHz
Memory Clock
1325 MHz

Memory

16GB
Memory Size
16GB
GDDR6
Memory Type
GDDR6X
256bit
Memory Bus
256bit
576.0GB/s
Bandwidth
678.4GB/s

Render Config

-
SM Count
110
80
Compute Units
-
5120
Shading Units
14080
320
TMUs
440
128
ROPs
144
-
Tensor Cores
440
80
RT Cores
110
128 KB per Array
L1 Cache
128 KB (per SM)
4 MB
L2 Cache
80 MB

Theoretical Performance

311.7 GPixel/s
Pixel Rate
375.8 GPixel/s
779.2 GTexel/s
Texture Rate
1148 GTexel/s
49.87 TFLOPS
FP16 (half)
73.50 TFLOPS
24.93 TFLOPS
FP32 (float)
73.50 TFLOPS
1.558 TFLOPS
FP64 (double)
1148 GFLOPS

Graphics Processor

Navi 21
GPU Name
AD102
Navi 21 XTXH (215-121000247)
GPU Variant
AD102-225-A1
RDNA 2.0
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
7 nm
Process Size
5 nm
26.8 billion
Transistors
76.3 billion
520 mm²
Die Size
609 mm²

Board Design

330W
TDP
400W
700 W
Suggested PSU
800 W
1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
2x 8-pin
Power Connectors
1x 16-pin

Graphics Features

12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.3
-
CUDA
8.9
6.5
Shader Model
6.7

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