Core i5-13400F with RTX 4070: Bottleneck & FPS

Paired with the RTX 4070, the Core i5-13400F delivers roughly 83 FPS at 1440p (1% lows ≈65) in modern AAA games, which our model rates as “GPU-limited, CPU has headroom”. The RTX 4070 is the limiting part at every resolution, so the 10-core Core i5-13400F (LGA1700) still has headroom for about 126 FPS and room for a faster card later. In esports titles such as CS2 or Valorant expect around 261 FPS, enough for a 240 Hz monitor, while CPU-heavy games like Microsoft Flight Simulator drop to about 69 FPS with a 34% CPU bottleneck. With ray tracing enabled, expect about 48 FPS at 1440p, so turn on DLSS or FSR to get back above 60.

Processor

Intel Core i5-13400F

10 cores / 16 threads · LGA1700 · 2023

Graphics card

NVIDIA GeForce RTX 4070

12 GB VRAM · Ray tracing ✓ · 2023

1440p (2560×1440) · High · AAA games · Native · 32 GB · 165 Hz

Change settings

GPU-limited

GPU-limited, CPU has headroom at 1440p

The RTX 4070 is the limiting part at 1440p, which is the normal and preferred situation for gaming. The Core i5-13400F has headroom for about 126 FPS, so it can handle a faster GPU later.

CPU126 FPSBottleneck

GPU84 FPSBottleneck

Display165 Hz

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

Avg FPS83

1% low65

CPU load66%

GPU load99%

Bottleneck by resolution

Core i5-13400F + RTX 4070 at High settings in AAA games.

Resolution	Avg FPS	1% low	Bottleneck
1080p (1920×1080)	112	84	Balanced
1440p (2560×1440)	83	65	GPU 34%
UW 1440p (3440×1440)	70	54	GPU 45%
4K (3840×2160)	51	39	GPU 60%

FPS by game type

At 1440p, High settings.

Game type	Avg FPS	Limited by
AAA / mixed games Cyberpunk 2077, Black Myth: Wukong, Elden Ring	83	GPU 34%
Competitive esports CS2, Valorant, Fortnite (Performance), League of Legends	261	GPU 18%
CPU-heavy (strategy, sims, MMO) MS Flight Simulator, Cities: Skylines II, WoW, Baldur's Gate 3 Act 3	69	CPU 34%
Ray tracing / path tracing Cyberpunk RT Overdrive, Alan Wake 2, Indiana Jones	48	GPU 55%

Recommendations

Specific to these parts at 1440p.

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 i5-13400F can drive a faster card at 1440p.

Step upRTX 4080 Super≈117 FPS (+40%) · balanced Best match for your CPURTX 5070≈99 FPS (+19%) · GPU 20%

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

Core i5-13400F + RTX 4070: quick answers

Does the Core i5-13400F bottleneck the RTX 4070?

1080p: balanced. 1440p: 34% GPU-limited. UW 1440p: 45% GPU-limited. 4K: 60% GPU-limited. At 1440p 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 i5-13400F with RTX 4070 get?

About 112 FPS at 1080p, 83 FPS at 1440p, 70 FPS at UW 1440p, 51 FPS at 4K in AAA games at High settings without upscaling. In esports games like CS2 and Valorant it reaches roughly 261 FPS at 1440p.

What is the best upgrade for a Core i5-13400F + RTX 4070 build?

At 1440p, the most effective upgrade is the RTX 4080 Super or RTX 5070. Use the calculator to check other resolutions and settings.