Intel Core i5-12400vsAMD Radeon R9 390
Bottleneck at 4K
Gaming performance • Analyzed on June 19, 2026
Intel Core i5-12400
Processor
AMD Radeon R9 390
Graphics Card
Why This Bottleneck Occurs
At 4k resolution for gaming, the AMD Radeon R9 390 creates a minimal bottleneck (3%) when paired with the Intel Core i5-12400. The GPU cannot render frames fast enough to match the CPU's throughput capability. At 4K, the GPU is under extreme load rendering 4x the pixels of 1080p, making it the clear limiting factor.
Detailed Performance Analysis
This is a programmatic analysis of the Intel Core i5-12400 and AMD Radeon R9 390 at 4K. Based on our benchmark scores, At 4k resolution for gaming, the AMD Radeon R9 390 creates a minimal bottleneck (3%) when paired with the Intel Core i5-12400. The GPU cannot render frames fast enough to match the CPU's throughput capability. At 4K, the GPU is under extreme load rendering 4x the pixels of 1080p, making it the clear limiting factor.
Upgrade Suggestions
This is an excellent, well-balanced build. No urgent upgrades needed.
Both the Intel Core i5-12400 and AMD Radeon R9 390 complement each other well at 4k.