AMD Radeon RX 6900 XT VS NVIDIA GeForce RTX 4090

amd

Brand

16GB GDDR6

Memory

5120

Cores

512 GB/s

Bandwidth

Radeon RX 6900 XT

$499.99 Oct 2020 View Details

$499.99

nvidia

Brand

24GB GDDR6X

Memory

16384

Cores

1010 GB/s

Bandwidth

GeForce RTX 4090

$2,591.99 Sep 2022 View Details

$2,591.99

AMD Radeon RX 6900 XT

16GB GDDR6 300W $499.99 Oct 2020

Radeon RX 6900 XT

$999 • Oct 2020

GeForce RTX 4090

$1599 • Sep 2022

NVIDIA GeForce RTX 4090

24GB GDDR6X 450W $2,591.99 Sep 2022

Specs Comparison

Specification	AMD Radeon RX 6900 XT	NVIDIA GeForce RTX 4090
Memory Size	16 GB	24 GB
Memory Type	GDDR6	GDDR6X
TDP	300 W	450 W
Core Clock	N/A	N/A
Boost Clock	2250 MHz	2520 MHz
Memory Bandwidth	512 GB/s	1010 GB/s
Process Size	7nm	5nm
Architecture	RDNA 2.0	Ada Lovelace
Shading Units	5120	16384
RT Cores	80	128
TMUs	320	512
ROPs	128	176
Memory Bus	256-bit	384-bit
Memory Clock	2000 MHz	1313 MHz
Pixel Rate	288 GPixel/s	443.5 GPixel/s
Texture Rate	512 GTexel/s	1.01 GTexel/s
FP32 Performance	23.04 GFLOPS	82.58 GFLOPS
L2 Cache	4.00 MB	72.00 MB
Die Size	520 mm²	609 mm²
Transistors	26800 Million	76300 Million
Required PSU	700 W	850 W
Power Connectors	2x 8-pin	1x 16-pin
Bus Interface	PCIe 4.0 x16	PCIe 4.0 x16
DirectX	12.2	12.2
Vulkan	1.3	1.3
OpenGL	4.6	4.6
Foundry	TSMC	TSMC

Comparison in Synthetic Benchmarks

3DMark Time Spy

Synthetic DirectX 12 benchmark that measures GPU performance in gaming workloads

Graphics Score

20261

AMD Radeon RX 6900 XT

42193 (+108%)

NVIDIA GeForce RTX 4090

Geekbench 6

Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs

OpenCL Score

124121

AMD Radeon RX 6900 XT

316301 (+155%)

NVIDIA GeForce RTX 4090

GFXBench 5.0

Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs

Aztec Ruins High (FPS)

305.2 FPS

AMD Radeon RX 6900 XT

615.9 FPS (+102%)

NVIDIA GeForce RTX 4090

PassMark G2D

Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations

G2D Mark

26744

AMD Radeon RX 6900 XT

38309 (+43%)

NVIDIA GeForce RTX 4090

Game Benchmarks Comparison (636 benchmarks)

The Blood of Dawnwalker

7 2026 • Action, Adventure, RPG • Rebel Wolves

1080p

| ultra

GeForce RTX 4090 (+64%)

AVG 77 FPS

MIN 69 FPS

Radeon RX 6900 XT

AVG 47 FPS

MIN 43 FPS

1440p

| ultra

GeForce RTX 4090 (+86%)

AVG 65 FPS

MIN 59 FPS

Radeon RX 6900 XT

AVG 35 FPS

MIN 30 FPS

2160p

| ultra

GeForce RTX 4090 (+91%)

AVG 42 FPS

MIN 38 FPS

Radeon RX 6900 XT

AVG 22 FPS

MIN 20 FPS

Winner

Loser

Onimusha: Way of the Sword

8 2026 • Action, Adventure, RPG • CAPCOM Co., Ltd.

1080p

| ultra

GeForce RTX 4090 (+80%)

AVG 162 FPS

MIN 146 FPS

Radeon RX 6900 XT

AVG 90 FPS

MIN 81 FPS

1440p

| ultra

GeForce RTX 4090 (+87%)

AVG 125 FPS

MIN 109 FPS

Radeon RX 6900 XT

AVG 67 FPS

MIN 61 FPS

2160p

| ultra

GeForce RTX 4090 (+120%)

AVG 77 FPS

MIN 67 FPS

Radeon RX 6900 XT

AVG 35 FPS

MIN 32 FPS

Winner

Loser

Resonance: A Plague Tale Legacy Background

Resonance: A Plague Tale Legacy

7 2026 • Action, Adventure • Asobo Studio

1080p

| ultra

GeForce RTX 4090 (+94%)

AVG 194 FPS

MIN 173 FPS

Radeon RX 6900 XT

AVG 100 FPS

MIN 90 FPS

1440p

| ultra

GeForce RTX 4090 (+85%)

AVG 144 FPS

MIN 129 FPS

Radeon RX 6900 XT

AVG 78 FPS

MIN 68 FPS

2160p

| ultra

GeForce RTX 4090 (+107%)

AVG 87 FPS

MIN 77 FPS

Radeon RX 6900 XT

AVG 42 FPS

MIN 36 FPS

Winner

Loser

Call of Duty: Modern Warfare 4 Beta Background

Call of Duty: Modern Warfare 4 Beta

8 2026 • Action • Infinity Ward, Beenox, Digital Legends, Activision Shanghai, Raven Software, Treyarch, Sledgehammer Games, High Moon Studios

1080p

| ultra

GeForce RTX 4090 (+179%)

AVG 81 FPS

MIN 73 FPS

Radeon RX 6900 XT

AVG 29 FPS

MIN 26 FPS

1440p

| ultra

GeForce RTX 4090 (+206%)

AVG 55 FPS

MIN 46 FPS

Radeon RX 6900 XT

AVG 18 FPS

MIN 16 FPS

2160p

| ultra

GeForce RTX 4090 (+222%)

AVG 29 FPS

MIN 26 FPS

Radeon RX 6900 XT

AVG 9 FPS

MIN 8 FPS

Winner

Loser

The Sinking City 2

7.5 2026 • Action, Adventure • Frogwares

1080p

| ultra

GeForce RTX 4090 (+97%)

AVG 120 FPS

MIN 102 FPS

Radeon RX 6900 XT

AVG 61 FPS

MIN 54 FPS

1440p

| ultra

GeForce RTX 4090 (+104%)

AVG 92 FPS

MIN 80 FPS

Radeon RX 6900 XT

AVG 45 FPS

MIN 39 FPS

2160p

| ultra

GeForce RTX 4090 (+133%)

AVG 56 FPS

MIN 49 FPS

Radeon RX 6900 XT

AVG 24 FPS

MIN 22 FPS

Winner

Loser

Hell Let Loose: Vietnam

7.1 2026 • Action, Simulation, Strategy, Massively Multiplayer • Expression Games

1080p

| ultra

GeForce RTX 4090 (+123%)

AVG 118 FPS

MIN 110 FPS

Radeon RX 6900 XT

AVG 53 FPS

MIN 49 FPS

1440p

| ultra

GeForce RTX 4090 (+125%)

AVG 90 FPS

MIN 82 FPS

Radeon RX 6900 XT

AVG 40 FPS

MIN 36 FPS

2160p

| ultra

GeForce RTX 4090 (+130%)

AVG 53 FPS

MIN 46 FPS

Radeon RX 6900 XT

AVG 23 FPS

MIN 21 FPS

Winner

Loser

No more benchmarks available for this comparison

NVIDIA GeForce RTX 4090 Wins!

Based on 639 benchmarks across 179 games

Avg FPS

Radeon RX 6900 XT

+80.3%

130

Avg FPS

GeForce RTX 4090