Core i5-10400F Bottleneck Calculator

The Intel Core i5-10400F is a 6-core, 12-thread Comet Lake processor for socket LGA1200, launched in 2020. Use this page as a bottleneck detector for the Core i5-10400F: pick any graphics card and you get the bottleneck direction and percentage at 1080p, 1440p and 4K, estimated FPS in 14 games, and the best-value GPU matches. This page also covers the Core i5-10400, which perform the same in games.

Check the Core i5-10400F with your graphics card

Data version 2026.09 · methodology

Processor (CPU)

Graphics card (GPU)

Memory (RAM)

Resolution

More options: game and monitor refresh rate

Game or workload

Monitor refresh rate

Estimates for the selected game and resolution with the settings noted on the methodology page. Real results vary by map, drivers and settings.

Core i5-10400F specs that matter for bottlenecks

Cores / threads	6 / 12
Boost clock	4.3 GHz
L3 cache	12 MB
Socket · memory	LGA1200 · DDR4
TDP	65 W
Launched	2020
PCPartGuide gaming index	49 (100 = Ryzen 7 9800X3D)
Typical price	under $200 class

For gaming, single-thread speed, cache and memory bandwidth decide the Core i5-10400F's frame ceiling far more than its core count.

Which GPUs bottleneck the Core i5-10400F?

Typical modern AAA game, high settings, no upscaling, with a matching dual-channel RAM kit. A CPU percentage means the processor limits the pair; a GPU percentage means the graphics card does (the normal state). Rows with a link have a full page; the others run in the calculator above.

Graphics card	1080p	1440p	4K	fps 1440p
	65% CPU	45% CPU	balanced	123
	61% CPU	36% CPU	20% GPU	123
	56% CPU	25% CPU	35% GPU	123
	53% CPU	20% CPU	40% GPU	123
	52% CPU	19% CPU	41% GPU	123
	52% CPU	19% CPU	41% GPU	123
	52% CPU	18% CPU	43% GPU	123
	50% CPU	14% CPU	46% GPU	123
	48% CPU	11% CPU	46% GPU	123
	48% CPU	balanced	49% GPU	123
	47% CPU	balanced	49% GPU	123
	46% CPU	balanced	53% GPU	123
	45% CPU	balanced	50% GPU	123
	44% CPU	balanced	53% GPU	123
	44% CPU	balanced	53% GPU	123
	44% CPU	balanced	51% GPU	123
	44% CPU	balanced	54% GPU	123
	43% CPU	balanced	56% GPU	122
	41% CPU	balanced	55% GPU	120
	40% CPU	balanced	55% GPU	118
	39% CPU	balanced	57% GPU	115
	38% CPU	balanced	58% GPU	113
	37% CPU	11% GPU	61% GPU	109
	36% CPU	11% GPU	61% GPU	109
	32% CPU	18% GPU	65% GPU	100
	31% CPU	18% GPU	64% GPU	100
	31% CPU	18% GPU	63% GPU	100
	28% CPU	22% GPU	67% GPU	95
	27% CPU	24% GPU	67% GPU	93
	25% CPU	28% GPU	70% GPU	89
	23% CPU	28% GPU	68% GPU	89
	23% CPU	29% GPU	71% GPU	87
	22% CPU	29% GPU	70% GPU	87
	22% CPU	31% GPU	72% GPU	84
RTX 3060 Ti	20% CPU	31% GPU	71% GPU	84
RX 6700 XT	18% CPU	33% GPU	72% GPU	82
	14% CPU	37% GPU	73% GPU	78
	14% CPU	37% GPU	74% GPU	78
	12% CPU	40% GPU	76% GPU	73
RTX 4060	12% CPU	40% GPU	76% GPU	73
	balanced	40% GPU	75% GPU	73
RX 7600	balanced	44% GPU	77% GPU	69
	balanced	44% GPU	76% GPU	69
	balanced	44% GPU	76% GPU	69
	balanced	47% GPU	79% GPU	64
	balanced	47% GPU	78% GPU	64
	balanced	47% GPU	78% GPU	64
	balanced	47% GPU	78% GPU	64
	balanced	49% GPU	78% GPU	62
	balanced	49% GPU	78% GPU	62
	balanced	49% GPU	80% GPU	62
	balanced	51% GPU	79% GPU	60
	balanced	51% GPU	79% GPU	60
	12% GPU	53% GPU	80% GPU	58
	15% GPU	55% GPU	82% GPU	56
	18% GPU	57% GPU	82% GPU	53
	20% GPU	58% GPU	83% GPU	51
	20% GPU	58% GPU	82% GPU	51
	23% GPU	60% GPU	83% GPU	49
	23% GPU	60% GPU	84% GPU	49
	26% GPU	62% GPU	84% GPU	47
	26% GPU	62% GPU	85% GPU	47
	32% GPU	66% GPU	87% GPU	42
	35% GPU	66% GPU	86% GPU	42
	38% GPU	69% GPU	88% GPU	38
	46% GPU	73% GPU	90% GPU	33
	46% GPU	73% GPU	90% GPU	33
	52% GPU	76% GPU	91% GPU	29
	52% GPU	76% GPU	91% GPU	29
	55% GPU	78% GPU	92% GPU	27
	57% GPU	78% GPU	92% GPU	27
	60% GPU	80% GPU	93% GPU	24
	66% GPU	84% GPU	94% GPU	20
	63% GPU	84% GPU	94% GPU	20
	72% GPU	86% GPU	95% GPU	18
	80% GPU	91% GPU	97% GPU	11

Best GPUs for the Core i5-10400F by resolution

Resolution	Budget (under $300)	Mid-range ($300–600)	High-end ($600+)
1080p	RX 6650 XT ~123 fps · balanced	RX 6750 XT ~123 fps · 22% CPU	no balanced option
1440p	RTX 5060 ~84 fps · 31% GPU	RTX 5070 ~123 fps · balanced	RX 9070 XT ~123 fps · 14% CPU
4K	no balanced option	no balanced option	RTX 5090 ~120 fps · balanced

Balanced at 1440p: RTX 4070 Ti Super, RX 7900 XT, RTX 4070 Ti, RTX 3090, RTX 5070, RX 9070. Picks favour the most frames per dollar inside each price class; prices are typical street prices, not live quotes.

See Core i5-10400F pricesAffiliate link: if you buy through it we may earn a commission at no extra cost to you.

Estimated FPS with the Core i5-10400F and a RTX 5070

Game	1080p	1440p	4K	Limiter at 1080p
Fortnite (Performance mode)	206	206	169	CPU
Valorant	294	294	294	CPU
Counter-Strike 2	245	245	165	CPU
Apex Legends	157	157	94	game cap
Call of Duty: Warzone	127	127	61	CPU
Marvel Rivals	123	94	42	CPU
Rainbow Six Siege	270	270	179	CPU
Minecraft (Java)	343	343	329	CPU
Roblox	221	221	221	game cap
GTA V	137	137	80	CPU
Rust	108	104	47	CPU
Cyberpunk 2077	118	94	42	CPU
Helldivers 2	113	94	42	CPU
Elden Ring	60	60	56	game cap

High settings, no upscaling, dual-channel RAM. Competitive titles are shown at their usual reduced settings. Estimates, not benchmarks: see the methodology.

RAM for the Core i5-10400F

The Core i5-10400F uses DDR4. 2×8GB or 2×16GB DDR4-3200 CL16 minimum, DDR4-3600 CL16 if the price gap is small. Run two sticks: single-channel memory costs this chip a meaningful share of its gaming performance.

Signs the Core i5-10400F is your bottleneck

Six cores is the floor for current games. The Core i5-10400F handles them, but heavy background load (Discord, browser tabs, streaming) will show up as 1% low dips.

In an overlay, a Core i5-10400F bottleneck looks like GPU usage dropping below about 90% while one or two CPU threads stay pinned, especially in crowded scenes and at 1080p.

How to confirm it on your own PC: reading CPU and GPU usage correctly. Fixes: how to fix a CPU bottleneck.

Upgrade paths from the Core i5-10400F

The cheapest meaningful step up on the same LGA1200 socket is the Core i5-11400F (about 8% faster in games); the strongest drop-in option is the Core i7-11700K.

Core i5-11400F — about 8% faster in games, under $200 class.
Core i5-10600K — about 8% faster in games, under $200 class.
Core i7-11700K — about 18% faster in games, $200–300 class.

Deciding between a processor and a graphics card? Read upgrade CPU or GPU first.

Core i5-10400F bottleneck FAQ

Does the Core i5-10400F bottleneck the RTX 5090?

At 1080p the Core i5-10400F is a severe limiter (65%). The RTX 5090 spends most of its time waiting, and frame pacing will suffer in CPU-heavy scenes. At 1440p the Core i5-10400F holds the RTX 5090 back by roughly 45%. You are paying for graphics performance you cannot use at this resolution; raising settings or resolution is free performance here.

What is the best GPU for the Core i5-10400F at 1440p?

In our model the RTX 5070 is the best-value match at 1440p ($400–600 class): At 1440p the Core i5-10400F and RTX 5070 are evenly matched: neither part is waiting on the other for long, and you get about 123 fps in a typical modern AAA game. Other balanced options at 1440p include the RTX 4070 Ti Super, RX 7900 XT, RTX 4070 Ti.

Is the Core i5-10400F still good for gaming in 2026?

For 60–100 fps gaming, yes. The Core i5-10400F is showing its age against current mid-range parts, so it suits 1440p or 4K with a mid-range card better than high-refresh 1080p.

Will faster RAM help the Core i5-10400F?

What should I upgrade to from the Core i5-10400F?

The cheapest meaningful step up on the same LGA1200 socket is the Core i5-11400F (about 8% faster in games); the strongest drop-in option is the Core i7-11700K.

Popular Core i5-10400F pairings

Core i5-10400F + RTX 3060 Ti1440p: 31% GPU-bound · ~84 fps Core i5-10400F + RX 6700 XT1440p: 33% GPU-bound · ~82 fps Core i5-10400F + RTX 40601440p: 40% GPU-bound · ~73 fps Core i5-10400F + RX 76001440p: 44% GPU-bound · ~69 fps

Try the calculator with your exact parts

RAM kit, resolution, game and refresh rate all change the answer.

Open the bottleneck calculator