Is NVIDIA GeForce GTX 1080 compatible with Intel Core i5-8400?

Yes, if your motherboard supports the LGA1151 socket. Recommended PSU: 400W.

What FPS can I get with NVIDIA GeForce GTX 1080 and Intel Core i5-8400?

FPS varies by game and preset. See the detailed per-game table above.

DESKTOP

NVIDIA GeForce GTX 1080 + Intel Core i5-8400

Q: Does the Intel Core i5-8400 bottleneck the NVIDIA GeForce GTX 1080?

At 1080p, the estimated bottleneck is 37.2%.

Bottleneck Analysis & Gaming FPS Estimates

Severe CPU Bottleneck

Significant bottleneck (~37.2%). Upgrading the CPU is strongly recommended.

Bottleneck at a Glance

37.2%

1080p Bottleneck

CPU

30.2%

1440p Bottleneck

CPU

21.5%

4K Bottleneck

CPU

Component Specs

8GB

GPU VRAM

180W

GPU TDP

6C/6T

CPU Cores

LGA1151

Socket

🛒 Check NVIDIA GeForce GTX 1080 Price 🛒 Check Intel Core i5-8400 Price

Estimated FPS in Popular Games (1080p)

Game	Low	High	Ultra	Genre
Grand Theft Auto VI (GTA 6)	49	34	11	Open World
Cyberpunk 2077	67	47	14	Action Rpg
Counter-Strike 2 (CS2)	215	148	106	Fps Shooter
Valorant	308	212	153	Fps Shooter
Grand Theft Auto V (GTA 5)	129	89	64	Open World
Red Dead Redemption 2	83	58	41	Open World
Fortnite	155	107	76	Battle Royale
Call of Duty: Warzone	107	74	23	Battle Royale
Call of Duty: Black Ops 6	103	71	23	Fps Shooter
Apex Legends	171	118	85	Battle Royale
Minecraft (with Shaders)	100	69	50	Sandbox
League of Legends (LoL)	334	230	165	Moba
Dota 2	188	130	93	Moba
PUBG: Battlegrounds	136	94	67	Battle Royale
Overwatch 2	211	146	104	Fps Shooter
Rainbow Six Siege	244	168	121	Fps Shooter
Rust	85	58	18	Survival
Escape from Tarkov	74	51	16	Survival Fps
Hogwarts Legacy	74	51	16	Action Rpg
Elden Ring	92	64	46	Action Rpg
Baldur's Gate 3	86	59	19	Rpg
Starfield	59	41	13	Action Rpg
Helldivers 2	84	58	18	Co Op Shooter
Black Myth: Wukong	65	45	14	Action Rpg
Alan Wake 2	57	39	12	Survival Horror
Palworld	88	61	43	Survival
EA Sports FC 25	147	101	73	Sports
Forza Horizon 5	107	74	53	Racing
The Witcher 3 (Next-Gen)	85	58	42	Action Rpg
Marvel's Spider-Man 2	76	52	17	Action Adventure

Upgrade Recommendations

Current: Intel Core i5-8400

⬆ Intel Core i7-9700K

+49.0% performance gain

Your Intel Core i5-8400 limits the NVIDIA GeForce GTX 1080 by ~37.2%. Upgrading to Intel Core i7-9700K unlocks ~49.0% more CPU performance on the same socket.

View New Combo Check Price on Amazon

Compatibility & Power

⚡Recommended PSU: 400W (80+ Bronze or better)

🔌CPU Socket: LGA1151 — verify your motherboard compatibility.

⚠️9th Gen Intel CPUs on 300-series motherboards may require a BIOS update.

🎮VRAM: 8GB GDDR — check per-game requirements in the FPS table.

🔋GPU Power Draw: 180W — CPU: 65W

FAQ

Does the Intel Core i5-8400 bottleneck the NVIDIA GeForce GTX 1080?

At 1080p, the estimated bottleneck is 37.2% (CPU).

What PSU do I need?

A quality 400W 80+ Bronze PSU is recommended.

Can I upgrade the CPU without changing my motherboard?

Yes — as long as you stay on the LGA1151 socket.