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Arc B580 vs Arc A770 16GB: Gaming Performance & Bottleneck (2026)

With a Ryzen 7 9800X3D at 1440p High, the Arc B580 averages 55 FPS in AAA games to the Arc A770 16GB's 47. That 17% lead is about the same at 4K. For a card 2 years newer, that is a solid generational step. The order holds at 1080p (17% apart), so the Arc B580 is the quicker card at every resolution. Ray tracing widens the gap to 32% (29 vs 22 FPS at 1440p), as the Arc A770 16GB's RT hardware is less efficient. In esports games like CS2 or Valorant at 1080p they reach 250 and 213 FPS, enough for a 144 Hz monitor. At 4K the Arc A770 16GB manages 28 FPS native, and XeSS Quality lifts that to about 40. The Arc A770 16GB also has more memory (16 GB vs 12 GB), though both have enough for 4K High today. To stay under a 10% CPU bottleneck at 1440p, both need only a Ryzen 5 3600-class CPU.

Relative performance

Faster card = 100%. Average FPS at High settings with a Ryzen 7 9800X3D.

1440p, AAA games

Arc B580100%
Arc A770 16GB85%

55 vs 47 FPS · Arc B580 +17%

4K, AAA games

Arc B580100%
Arc A770 16GB85%

33 vs 28 FPS · Arc B580 +17%

1440p, ray tracing

Arc B580100%
Arc A770 16GB76%

29 vs 22 FPS · Arc B580 +32%

FPS with a Ryzen 7 9800X3D

Average FPS in AAA games, no upscaling. A fast CPU, so the graphics card sets the pace.

SettingArc B580Arc A770 16GBLead
1080p High7867B580 +17%
1440p High5547B580 +17%
4K High3328B580 +17%
1440p ray tracing2922B580 +32%

Specifications

Raster index: RTX 4090 = 100.

SpecArc B580Arc A770 16GB
VRAM12 GB16 GB
Ray tracingYes, 90% efficiencyYes, 80% efficiency
Released20242022
Raster index3429

Which CPU do you need?

Slowest common CPU that keeps each card under a 10% bottleneck at 1440p High.

Graphics cardSlowest CPUFPS
Arc B580Ryzen 5 3600 or faster54
Arc A770 16GBRyzen 5 3600 or faster47

Which should you buy?

Buy the Arc B580 if you want the faster card: it's 17% ahead at 4K. The Arc A770 16GB is the better buy only if it costs at least 17% less, the gap at 1440p, because then it delivers more frames per dollar. Already own the Arc A770 16GB? Going to the Arc B580 gains 17% at 1440p, which is a modest upgrade, worth it mainly if you can sell the Arc A770 16GB.

Buy the Arc B580 if…

  • you want the most FPS: it's 17% faster at 4K and 17% at 1440p.
  • you play with ray tracing: 29 vs 22 FPS at 1440p.
  • you want the newer card (2024) with the longer driver and feature support ahead of it.

Buy the Arc A770 16GB if…

  • you play at 4K or use high-resolution texture packs: 16 GB of VRAM vs 12 GB.
  • it costs at least 17% less than the Arc B580, which makes it the better value per frame.

Check your build

These numbers use a Ryzen 7 9800X3D to isolate the graphics card. Your own CPU, resolution and settings change the result, so run your exact parts through the calculator.

Check Ryzen 5 3600 + Arc B580 Check Ryzen 5 3600 + Arc A770 16GB

Popular builds with these cards

Ryzen 5 7600 + Arc B5801440p · GPU-limited 60% · ≈55 FPSCore i5-13400F + Arc B5801440p · GPU-limited 57% · ≈55 FPSCore i5-12400F + Arc B5801440p · GPU-limited 54% · ≈55 FPS

Arc B580 vs Arc A770 16GB: quick answers

Is the Arc B580 faster than the Arc A770 16GB?

Yes. The Arc B580 is about 17% faster at 4K and 17% faster at 1440p in AAA games at High settings. With ray tracing on at 1440p the Arc B580 gets about 29 FPS and the Arc A770 16GB 22 FPS.

How many FPS do the Arc B580 and Arc A770 16GB get?

With a Ryzen 7 9800X3D at High settings in AAA games, the Arc B580 averages about 78 FPS at 1080p, 55 at 1440p and 33 at 4K. The Arc A770 16GB averages 67, 47 and 28 FPS. DLSS, FSR or XeSS upscaling adds roughly 40% where the graphics card is the limit.

What CPU do I need for the Arc B580 or Arc A770 16GB?

To keep the CPU bottleneck under 10% at 1440p, the Arc B580 needs a Ryzen 5 3600 or faster and the Arc A770 16GB needs a Ryzen 5 3600 or faster. At 1080p you need a faster CPU for the same result, and at 4K a slower one is fine. A slower CPU narrows the gap between the Arc B580 and the Arc A770 16GB.