RX 6900 XT vs RTX 3090

GPU Head-to-Head · FPS & Value Comparison

RX 6900 XT vs RTX 3090: Gaming Performance Comparison in 1080p Ultra

In gaming, the RX 6900 XT delivers approximately +1% higher frame rates compared to the RTX 3090 in 1080p Ultra. For budget-conscious buyers, the RX 6900 XT currently offers +90.5% better value, available at a $604 price difference.

RX 6900 XT Advantages

Up to 1% faster in gaming benchmarks on average – 98 vs 97 FPS

Up to 90.5% better value for money – $6.94 vs $13.22/FPS

Costs only 53% of the price – $681 vs $1,285 (47% cheaper)

Is newer – 2020-12-08 vs 2020-09-24

RTX 3090 Advantages

50% more VRAM memory – 24 vs 16 GB

Performance Analytics

Average FPS across 21 games · all benchmarks use the same test suite

1080p Ultra

Full HD — max settings

AVG FPS
RX 6900 XT
98.1fps(100%)
RTX 3090
97.2fps(99%)
WinnerRX 6900 XT
+1% faster
General Explanation of Benchmark Percentages

When you see two FPS numbers, there are two common but different ways to show the difference:

"X% of the performance"

This compares the slower card to the faster card.

Formula: (RTX 3090 FPS ÷ RX 6900 XT FPS) × 100
Example: (97.2 ÷ 98.1) × 100 = 99%
"X% faster"

This shows how much more the faster card performs compared to the slower one.

Formula: ((RX 6900 XT FPS - RTX 3090 FPS) ÷ RTX 3090 FPS) × 100
Example: ((98.1 - 97.2) ÷ 97.2) × 100 = 1%
Why Someone Might Get Confused:

You naturally think: "If RTX 3090 is only 99% as fast, then RX 6900 XT should be 1% faster" — but that's incorrect.

The "1% faster" is measured against the slower card, not against the faster one. So both numbers (99% of and 1% faster) are mathematically correct at the same time.

1440p Ultra

1440p QHD — max settings

AVG FPS
RX 6900 XT
68.4fps(99%)
RTX 3090
69.3fps(100%)
WinnerRTX 3090
+1% faster
General Explanation of Benchmark Percentages

When you see two FPS numbers, there are two common but different ways to show the difference:

"X% of the performance"

This compares the slower card to the faster card.

Formula: (RX 6900 XT FPS ÷ RTX 3090 FPS) × 100
Example: (68.4 ÷ 69.3) × 100 = 99%
"X% faster"

This shows how much more the faster card performs compared to the slower one.

Formula: ((RTX 3090 FPS - RX 6900 XT FPS) ÷ RX 6900 XT FPS) × 100
Example: ((69.3 - 68.4) ÷ 68.4) × 100 = 1%
Why Someone Might Get Confused:

You naturally think: "If RX 6900 XT is only 99% as fast, then RTX 3090 should be 1% faster" — but that's incorrect.

The "1% faster" is measured against the slower card, not against the faster one. So both numbers (99% of and 1% faster) are mathematically correct at the same time.

4K Ultra

3840×2160 — max settings

AVG FPS
RX 6900 XT
42fps(94%)
RTX 3090
44.8fps(100%)
WinnerRTX 3090
+7% faster
General Explanation of Benchmark Percentages

When you see two FPS numbers, there are two common but different ways to show the difference:

"X% of the performance"

This compares the slower card to the faster card.

Formula: (RX 6900 XT FPS ÷ RTX 3090 FPS) × 100
Example: (42 ÷ 44.8) × 100 = 94%
"X% faster"

This shows how much more the faster card performs compared to the slower one.

Formula: ((RTX 3090 FPS - RX 6900 XT FPS) ÷ RX 6900 XT FPS) × 100
Example: ((44.8 - 42) ÷ 42) × 100 = 7%
Why Someone Might Get Confused:

You naturally think: "If RX 6900 XT is only 94% as fast, then RTX 3090 should be 6% faster" — but that's incorrect.

The "7% faster" is measured against the slower card, not against the faster one. So both numbers (94% of and 7% faster) are mathematically correct at the same time.

Efficiency Coefficient 1080p Ultra (Higher = Better Value)

Performance delivered per currency unit: FPS/$

RX 6900 XT
0.144 Value100% Efficiency
RTX 3090
0.076 Value53% Efficiency