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AMD Radeon RX 7900 XTX + 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

24GB
GPU VRAM
355W
GPU TDP
6C/6T
CPU Cores
LGA1151
Socket
🛒 Check AMD Radeon RX 7900 XTX Price🛒 Check Intel Core i5-8400 Price

Estimated FPS in Popular Games (1080p)

GameLowHighUltraGenre
Grand Theft Auto VI (GTA 6)1359366Open World
Cyberpunk 207719813797Action Rpg
Counter-Strike 2 (CS2)513354253Fps Shooter
Valorant655452325Fps Shooter
Grand Theft Auto V (GTA 5)351243174Open World
Red Dead Redemption 2251174125Open World
Fortnite404279199Battle Royale
Call of Duty: Warzone281194138Battle Royale
Call of Duty: Black Ops 6281194138Fps Shooter
Apex Legends484334241Battle Royale
Minecraft (with Shaders)252174125Sandbox
League of Legends (LoL)709490351Moba
Dota 2448309222Moba
PUBG: Battlegrounds355245176Battle Royale
Overwatch 2575396285Fps Shooter
Rainbow Six Siege638440316Fps Shooter
Rust202140100Survival
Escape from Tarkov16811683Survival Fps
Hogwarts Legacy216149107Action Rpg
Elden Ring262181130Action Rpg
Baldur's Gate 3225155111Rpg
Starfield16011179Action Rpg
Helldivers 2229158113Co Op Shooter
Black Myth: Wukong19613698Action Rpg
Alan Wake 217712387Survival Horror
Palworld248172122Survival
EA Sports FC 25415287206Sports
Forza Horizon 5324223159Racing
The Witcher 3 (Next-Gen)248171123Action Rpg
Marvel's Spider-Man 2216149107Action 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 AMD Radeon RX 7900 XTX 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: 24GB GDDR — check per-game requirements in the FPS table.
🔋GPU Power Draw: 355W — CPU: 65W

FAQ

Does the Intel Core i5-8400 bottleneck the AMD Radeon RX 7900 XTX?

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

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