Core i5-3450 + AMD R9 390X Bottleneck Analysis
The Core i5-3450 and AMD R9 390X are 10% apart at 1440p (7% at 1080p, 13% at 4K) - check the per-resolution breakdown below for where this pairing makes sense.
Balance across resolutions
1080p
Balanced
1440p
Balanced
4K
GPU 12-15%
Benchmark data updated July 2026 · prices sync daily from retail feeds · how we score
Component scores below are out of 100 on our gaming-performance scale, weighted by how much each resolution leans on the CPU vs the GPU - the closer the two weighted scores, the more balanced the pairing.
1080p (Full HD)
Well BalancedEstimated AAA Game FPS
Based on gaming scores. Actual FPS varies by title.perfperformance
42
FPS
balancedbalanced
33
FPS
ultraultra
25
FPS
Great pairing! The Core i5-3450 and AMD R9 390X are well-matched at 1080p (Full HD). Both components will be utilized efficiently with minimal performance waste. This is an ideal combination for this resolution.
1440p (Quad HD)
Well BalancedEstimated AAA Game FPS
Based on gaming scores. Actual FPS varies by title.perfperformance
33
FPS
balancedbalanced
24
FPS
ultraultra
17
FPS
Great pairing! The Core i5-3450 and AMD R9 390X are well-matched at 1440p (Quad HD). Both components will be utilized efficiently with minimal performance waste. This is an ideal combination for this resolution.
4K (Ultra HD)
Moderate GPU Bottleneck (12-15%)Limiting factor at this resolution
Estimated AAA Game FPS
Based on gaming scores. Actual FPS varies by title.perfperformance
21
FPS
balancedbalanced
14
FPS
ultraultra
10
FPS
At 4K (Ultra HD), the AMD R9 390X will hold back the Core i5-3450 by roughly 12-15% depending on the game. At 4K the GPU carries most of the workload, and your graphics card is the limiting factor. Upgrading your GPU would provide the biggest performance improvement at this resolution.
Will it run the games you play?
Pick your games for an estimated FPS at 1440p, high settings.
Valorant
133-179FPS
High-refresh
Counter-Strike 2
102-138FPS
High-refresh
Fortnite
Balanced settings, no Lumen
57-77FPS
Smooth
Marvel Rivals
55-75FPS
Smooth
Call of Duty: Warzone
31-41FPS
Playable
These are estimates, not benchmarks. Your actual frame rate depends on your exact settings, resolution scaling, drivers, and the scene on screen - treat these as a realistic ballpark at high settings, not a guarantee. Lower settings or upscaling (DLSS/FSR) push them higher; maxed-out ray tracing pushes them lower.
Core i5-3450 + AMD R9 390X
We do not recommend buying every part in this pairing today - the ones worth buying link out to retailers, and the rest point to current alternatives instead:
CPU · Score 31/100
Core i5-3450
LGA1155 · 77W TDP
GPU · Score 20/100
AMD R9 390X
8GB VRAM · 275W TDP · used / remaining stock
The AMD R9 390X is discontinued - its price is an estimate of the used / remaining-stock market, not current new-retail.
Specs Comparison
| Spec | Core i5-3450 | AMD R9 390X |
|---|---|---|
| Gaming Score | 31/100 | 20/100 |
| Benchmark Score | 20 | 18 |
| TDP | 77W | 275W |
| Price | Not recommended | Not recommended |
| Socket / VRAM | LGA1155 | 8GB |
| Release Year | 2012 | 2015 |
Finish the Build
You picked the Core i5-3450 + AMD R9 390X - these tools answer the next two questions with this exact pairing already filled in:
Complete the Setup
Core's sorted with the Core i5-3450 + AMD R9 390X. Here's the gear that actually changes how it feels to play:
Explore Related Pairings
Frequently Asked Questions
Is the Core i5-3450 a bottleneck for the AMD R9 390X?
No, the Core i5-3450 and AMD R9 390X are well-matched at 1440p with only a 10% difference. This is an excellent pairing.
What resolution is best for the Core i5-3450 + AMD R9 390X?
The Core i5-3450 and AMD R9 390X are most balanced at 1080p with only a 7% bottleneck. At 1080p, bottleneck is 7%. At 1440p, it's 10%. At 4K, it's 13%.
Should I upgrade from the Core i5-3450 or AMD R9 390X?
Neither - this pairing is well-balanced. Only upgrade when you want to target a higher resolution or need more performance in specific games.
Want to test other parts? Use our free bottleneck calculator to compare any CPU and GPU pair.