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AMD Radeon RX 7900 XT + 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

20GB
GPU VRAM
315W
GPU TDP
6C/6T
CPU Cores
LGA1151
Socket
🛒 Check AMD Radeon RX 7900 XT Price🛒 Check Intel Core i5-8400 Price

Estimated FPS in Popular Games (1080p)

GameLowHighUltraGenre
Grand Theft Auto VI (GTA 6)1208359Open World
Cyberpunk 207717512186Action Rpg
Counter-Strike 2 (CS2)461318228Fps Shooter
Valorant595410295Fps Shooter
Grand Theft Auto V (GTA 5)313216155Open World
Red Dead Redemption 2222154111Open World
Fortnite361249178Battle Royale
Call of Duty: Warzone251173124Battle Royale
Call of Duty: Black Ops 6250173123Fps Shooter
Apex Legends429297214Battle Royale
Minecraft (with Shaders)225156112Sandbox
League of Legends (LoL)644444319Moba
Dota 2403278200Moba
PUBG: Battlegrounds317219157Battle Royale
Overwatch 2512353253Fps Shooter
Rainbow Six Siege570393282Fps Shooter
Rust18112690Survival
Escape from Tarkov15110475Survival Fps
Hogwarts Legacy19113294Action Rpg
Elden Ring232161115Action Rpg
Baldur's Gate 320113999Rpg
Starfield1429970Action Rpg
Helldivers 2203141101Co Op Shooter
Black Myth: Wukong17312086Action Rpg
Alan Wake 215610877Survival Horror
Palworld220152108Survival
EA Sports FC 25368254183Sports
Forza Horizon 5286197141Racing
The Witcher 3 (Next-Gen)220152109Action Rpg
Marvel's Spider-Man 219113295Action 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 XT 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: 550W (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: 20GB GDDR — check per-game requirements in the FPS table.
🔋GPU Power Draw: 315W — CPU: 65W

FAQ

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

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

What PSU do I need?

A quality 550W 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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