Core i5-11400F with Arc B580: Bottleneck & FPS

Paired with the Arc B580, the Core i5-11400F delivers roughly 77 FPS at 1080p (1% lows ≈60) in modern AAA games, which our model rates as “GPU-limited, CPU has headroom”. The Arc B580 is the limiting part at every resolution, so the 6-core Core i5-11400F (LGA1200) still has headroom for about 100 FPS and room for a faster card later. In esports titles such as CS2 or Valorant expect around 234 FPS, enough for a 144 Hz monitor, while CPU-heavy games like Microsoft Flight Simulator drop to about 55 FPS with a 44% CPU bottleneck. With ray tracing enabled, expect about 41 FPS at 1080p, so turn on DLSS or FSR to get back above 60.

Processor

Intel Core i5-11400F

6 cores / 12 threads · LGA1200 · 2021

Graphics card

Intel Arc B580

12 GB VRAM · Ray tracing ✓ · 2024

1080p (1920×1080) · High · AAA games · Native · 32 GB · 165 Hz

Change settings

GPU-limited

GPU-limited, CPU has headroom at 1080p

The Arc B580 is the limiting part at 1080p, which is the normal and preferred situation for gaming. The Core i5-11400F has headroom for about 100 FPS, so it can handle a faster GPU later.

CPU100 FPSBottleneck

GPU78 FPSBottleneck

Display165 Hz

Max frames each part can deliver. Frames pile up in front of the slower one.

Avg FPS77

1% low60

CPU load77%

GPU load98%

Bottleneck by resolution

Core i5-11400F + Arc B580 at High settings in AAA games.

Resolution	Avg FPS	1% low	Bottleneck
1080p (1920×1080)	77	60	GPU 22%
1440p (2560×1440)	55	43	GPU 45%
UW 1440p (3440×1440)	46	36	GPU 54%
4K (3840×2160)	33	26	GPU 67%

FPS by game type

At 1080p, High settings.

Game type	Avg FPS	Limited by
AAA / mixed games Cyberpunk 2077, Black Myth: Wukong, Elden Ring	77	GPU 22%
Competitive esports CS2, Valorant, Fortnite (Performance), League of Legends	234	Balanced
CPU-heavy (strategy, sims, MMO) MS Flight Simulator, Cities: Skylines II, WoW, Baldur's Gate 3 Act 3	55	CPU 44%
Ray tracing / path tracing Cyberpunk RT Overdrive, Alan Wake 2, Indiana Jones	41	GPU 52%

Recommendations

Specific to these parts at 1080p.

Your 165 Hz monitor can show more frames than this build delivers. Variable refresh (G-Sync/FreeSync) will keep motion smooth.

GPU upgrades for this CPU

The Core i5-11400F can drive a faster card at 1080p.

Best match for your CPURTX 4060 Ti 8GB≈87 FPS (+14%) · balanced

Browse all 577 popular builds or open this build in the bottleneck calculator to try other settings.

Core i5-11400F + Arc B580: quick answers

Does the Core i5-11400F bottleneck the Arc B580?

1080p: 22% GPU-limited. 1440p: 45% GPU-limited. UW 1440p: 54% GPU-limited. 4K: 67% GPU-limited. At 1080p the CPU keeps up, so this is a sensible pairing. A GPU-limited result is the normal, healthy state for gaming.

How many FPS does the Core i5-11400F with Arc B580 get?

About 77 FPS at 1080p, 55 FPS at 1440p, 46 FPS at UW 1440p, 33 FPS at 4K in AAA games at High settings without upscaling. In esports games like CS2 and Valorant it reaches roughly 234 FPS at 1080p.

What is the best upgrade for a Core i5-11400F + Arc B580 build?

At 1080p, the most effective upgrade is the RTX 4060 Ti 8GB. Use the calculator to check other resolutions and settings.