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NVIDIA GeForce RTX 4070 + 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

12GB
GPU VRAM
200W
GPU TDP
6C/6T
CPU Cores
LGA1151
Socket
🛒 Check NVIDIA GeForce RTX 4070 Price🛒 Check Intel Core i5-8400 Price

Estimated FPS in Popular Games (1080p)

GameLowHighUltraGenre
Grand Theft Auto VI (GTA 6)906244Open World
Cyberpunk 20771298963Action Rpg
Counter-Strike 2 (CS2)356246176Fps Shooter
Valorant473326234Fps Shooter
Grand Theft Auto V (GTA 5)234162116Open World
Red Dead Redemption 216311381Open World
Fortnite273188135Battle Royale
Call of Duty: Warzone18913193Battle Royale
Call of Duty: Black Ops 618713092Fps Shooter
Apex Legends319221159Battle Royale
Minecraft (with Shaders)17211985Sandbox
League of Legends (LoL)512353253Moba
Dota 2311215154Moba
PUBG: Battlegrounds240165119Battle Royale
Overwatch 2384264190Fps Shooter
Rainbow Six Siege431297214Fps Shooter
Rust1409769Survival
Escape from Tarkov1188258Survival Fps
Hogwarts Legacy1419770Action Rpg
Elden Ring17312085Action Rpg
Baldur's Gate 315210575Rpg
Starfield1077452Action Rpg
Helldivers 215210575Co Op Shooter
Black Myth: Wukong1278863Action Rpg
Alan Wake 21137956Survival Horror
Palworld16411380Survival
EA Sports FC 25274189136Sports
Forza Horizon 5210145103Racing
The Witcher 3 (Next-Gen)16211280Action Rpg
Marvel's Spider-Man 21429870Action 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 4070 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: 450W (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: 12GB GDDR — check per-game requirements in the FPS table.
🔋GPU Power Draw: 200W — CPU: 65W

FAQ

Does the Intel Core i5-8400 bottleneck the NVIDIA GeForce RTX 4070?

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

What PSU do I need?

A quality 450W 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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