Core i5-9400 + AMD Radeon VII Bottleneck Analysis

The Core i5-9400 and AMD Radeon VII 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 Balanced
CPU: Core i5-9400Score: 46/100
GPU: AMD Radeon VIIScore: 35/100
CPU Weight: 60%GPU Weight: 40%

Estimated AAA Game FPS

Based on gaming scores. Actual FPS varies by title.

perf

74

FPS

balanced

58

FPS

ultra

44

FPS

Great pairing! The Core i5-9400 and AMD Radeon VII 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 Balanced
CPU: Core i5-9400Score: 46/100
GPU: AMD Radeon VIIScore: 35/100
CPU Weight: 40%GPU Weight: 60%

Estimated AAA Game FPS

Based on gaming scores. Actual FPS varies by title.

perf

58

FPS

balanced

42

FPS

ultra

29

FPS

Great pairing! The Core i5-9400 and AMD Radeon VII 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%)
CPU: Core i5-9400Score: 46/100
GPU: AMD Radeon VIIScore: 35/100

Limiting factor at this resolution

CPU Weight: 20%GPU Weight: 80%

Estimated AAA Game FPS

Based on gaming scores. Actual FPS varies by title.

perf

37

FPS

balanced

25

FPS

ultra

18

FPS

At 4K (Ultra HD), the AMD Radeon VII will hold back the Core i5-9400 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.

Core i5-9400 + AMD Radeon VII

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:

Core i5-9400

CPU · Score 46/100

Core i5-9400

LGA1151 · 65W TDP

Not recommended
See current builds→Check used on eBay
AMD Radeon VII

GPU · Score 35/100

AMD Radeon VII

16GB VRAM · 300W TDP · used / remaining stock

Not recommended
See current GPUs→Check used on eBay

The AMD Radeon VII is discontinued - its price is an estimate of the used / remaining-stock market, not current new-retail.

Frequently Asked Questions

Is the Core i5-9400 a bottleneck for the AMD Radeon VII?

No, the Core i5-9400 and AMD Radeon VII are well-matched at 1440p with only a 10% difference. This is an excellent pairing.

What resolution is best for the Core i5-9400 + AMD Radeon VII?

The Core i5-9400 and AMD Radeon VII 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 i5-9400 or AMD Radeon VII?

Neither - this pairing is well-balanced. Only upgrade when you want to target a higher resolution or need more performance in specific games.

Try Different Components

Want to test other parts? Use our free bottleneck calculator to compare any CPU and GPU pair.