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NVIDIA GeForce RTX 5080 + Intel Core i5-8400

Bottleneck Analysis & Gaming FPS Estimates

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Severe CPU Bottleneck

Significant bottleneck (~60%). Upgrading the CPU is strongly recommended.

Bottleneck at a Glance

60%
1080p Bottleneck
CPU
60%
1440p Bottleneck
CPU
60%
4K Bottleneck
CPU

Component Specs

16GB
GPU VRAM
360W
GPU TDP
6C/6T
CPU Cores
LGA1151
Socket
🛒 Check NVIDIA GeForce RTX 5080 Price🛒 Check Intel Core i5-8400 Price

Estimated FPS in Popular Games (1080p)

GameLowHighUltraGenre
Grand Theft Auto VI (GTA 6)14710272Open World
Cyberpunk 2077216150106Action Rpg
Counter-Strike 2 (CS2)555383274Fps Shooter
Valorant705486349Fps Shooter
Grand Theft Auto V (GTA 5)383265190Open World
Red Dead Redemption 2275191137Open World
Fortnite440304217Battle Royale
Call of Duty: Warzone305211151Battle Royale
Call of Duty: Black Ops 6306212151Fps Shooter
Apex Legends528365263Battle Royale
Minecraft (with Shaders)273189135Sandbox
League of Legends (LoL)763526378Moba
Dota 2485335241Moba
PUBG: Battlegrounds387267191Battle Royale
Overwatch 2627432310Fps Shooter
Rainbow Six Siege694479344Fps Shooter
Rust218151108Survival
Escape from Tarkov18112589Survival Fps
Hogwarts Legacy236163117Action Rpg
Elden Ring286198142Action Rpg
Baldur's Gate 3245169121Rpg
Starfield17412186Action Rpg
Helldivers 2249173123Co Op Shooter
Black Myth: Wukong214149107Action Rpg
Alan Wake 219413595Survival Horror
Palworld271188133Survival
EA Sports FC 25453313225Sports
Forza Horizon 5354245175Racing
The Witcher 3 (Next-Gen)272188134Action Rpg
Marvel's Spider-Man 2236162116Action Adventure
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Upgrade Recommendations

Current: Intel Core i5-8400
⬆ Intel Core i7-9700K
+49.0% performance gain
Your Intel Core i5-8400 limits the NVIDIA GeForce RTX 5080 by ~60%. Upgrading to Intel Core i7-9700K unlocks ~49.0% more CPU performance on the same socket.
View New ComboCheck Price on Amazon

Compatibility & Power

⚡Recommended PSU: 600W (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: 16GB GDDR — check per-game requirements in the FPS table.
🔋GPU Power Draw: 360W — CPU: 65W

FAQ

Does the Intel Core i5-8400 bottleneck the NVIDIA GeForce RTX 5080?

At 1080p, the estimated bottleneck is 60% (CPU).

What PSU do I need?

A quality 600W 80+ Bronze PSU is recommended.

Can I upgrade the CPU without changing my motherboard?

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

Compare Other Pairings

NVIDIA GeForce GTX 1050 TiNVIDIA GeForce GTX 1060 6GBNVIDIA GeForce GTX 1070NVIDIA GeForce GTX 1070 TiNVIDIA GeForce GTX 1080NVIDIA GeForce GTX 1080 Ti
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