RX 6600 XT vs B580
GPU Head-to-Head · FPS & Value Comparison
RX 6600 XT vs B580: Gaming Performance Comparison in 1080p Ultra
In gaming, the RX 6600 XT delivers approximately +3% higher frame rates compared to the B580 in 1080p Ultra. For budget-conscious buyers, the RX 6600 XT currently offers +46.2% better value, available at a $92.03 price difference.
RX 6600 XT Advantages
Up to 3% faster in gaming benchmarks on average – 61 vs 59 FPS
Up to 46.2% better value for money – $3.62 vs $5.29/FPS
Costs only 71% of the price – $220 vs $312 (29% cheaper)
Consumes up to 16% less energy – 160W vs 190W
B580 Advantages
50% more VRAM memory – 12 vs 8 GB
Is newer – 2024-12-01 vs 2021-08-11
Performance Analytics
Average FPS across 21 games · all benchmarks use the same test suite
1080p Ultra
Full HD — max settings
When you see two FPS numbers, there are two common but different ways to show the difference:
This compares the slower card to the faster card.
Example: (59 ÷ 60.8) × 100 = 97%
This shows how much more the faster card performs compared to the slower one.
Example: ((60.8 - 59) ÷ 59) × 100 = 3%
You naturally think: "If B580 is only 97% as fast, then RX 6600 XT should be 3% faster" — but that's incorrect.
The "3% faster" is measured against the slower card, not against the faster one. So both numbers (97% of and 3% faster) are mathematically correct at the same time.
1440p Ultra
1440p QHD — max settings
When you see two FPS numbers, there are two common but different ways to show the difference:
This compares the slower card to the faster card.
Example: (37.7 ÷ 42.3) × 100 = 89%
This shows how much more the faster card performs compared to the slower one.
Example: ((42.3 - 37.7) ÷ 37.7) × 100 = 12%
You naturally think: "If RX 6600 XT is only 89% as fast, then B580 should be 11% faster" — but that's incorrect.
The "12% faster" is measured against the slower card, not against the faster one. So both numbers (89% of and 12% faster) are mathematically correct at the same time.
4K Ultra
3840×2160 — max settings
When you see two FPS numbers, there are two common but different ways to show the difference:
This compares the slower card to the faster card.
Example: (19.8 ÷ 26.1) × 100 = 76%
This shows how much more the faster card performs compared to the slower one.
Example: ((26.1 - 19.8) ÷ 19.8) × 100 = 32%
You naturally think: "If RX 6600 XT is only 76% as fast, then B580 should be 24% faster" — but that's incorrect.
The "32% faster" is measured against the slower card, not against the faster one. So both numbers (76% of and 32% faster) are mathematically correct at the same time.
Efficiency Coefficient 1080p Ultra (Higher = Better Value)
Performance delivered per currency unit: FPS/$