CPU and GPU pairings

Does the Core i5-13400 bottleneck the RTX 5080?

At 1080p, the processor holds the graphics card back in most games. At 1440p, the two are well matched. At 4K, the graphics card sets the pace.

Intel Core i5-13400 with NVIDIA GeForce RTX 5080

  1. 1080p

    The processor holds this card back in most games

    The processor can prepare about 60% of the frames this card could draw.

  2. 1440p

    Well matched

    The processor can prepare about 90% of the frames this card could draw.

  3. 4K

    The graphics card sets the pace

    The processor could keep up with a graphics card about 50% faster.

The processor clearly holds this card back only at 1080p. At 1440p the two are close, and at 4K the graphics card sets the pace, so a faster processor would pay off mainly at 1080p.

An estimate for a typical game at high settings. Strategy, simulation and large multiplayer games lean on the processor more; lower settings and upscaling do too.

Change either part in the calculator

Does your PC deliver this?

Before buying a faster processor, make sure your PC gets what it should from the one it has: a setting left wrong can cost as many frames as the upgrade would add. On a PC with these parts, Bottleneck checks, free:

  • Intel’s fix for 13th and 14th gen instability. Some Core i5-13400 processors are made on the chip that can wear out and turn unstable without a BIOS update; Bottleneck says which chip yours is, and whether it has the fix. What the fault is
  • Memory at its rated speed, in dual channel. Games held back by the processor lose the most when memory runs slower than it should.
  • Resizable BAR. Both parts support it, and it is often left switched off in the BIOS.
  • Hardware GPU scheduling. Frame generation on the RTX 5080 will not run without it.

Then play a game while it measures, and it tells you which part really set the pace, and for what share of the frames: measured on your PC, where this page can only estimate.

Download free for Windows How to check it yourself

The free version has no time limit and needs no account. Pro, $9 once, explains each problem and how to fix it, makes the common fixes in one click, and costs out the upgrade for your own PC. Compare the versions

Graphics cards the Core i5-13400 keeps up with

Current cards that are well matched with the Core i5-13400 at 1440p, fastest first.

Processors that keep up with the RTX 5080

Current processors that keep the RTX 5080 from waiting at 1440p, starting from the least powerful step up from the Core i5-13400.

Power supply

A 750 W power supply covers this pair: at full load the Core i5-13400, the RTX 5080 and the rest of the PC can draw up to about 568 W. The power supply page for the RTX 5080 has the size with other processors.

More pairings

How this is worked out

Each part gets one figure for games from the reference dataset the Bottleneck app uses to judge the hardware it measures, and the two are compared at each resolution. The calculator explains the model; this page is its answer for the Core i5-13400 and the RTX 5080. It is an estimate from the part names: memory speed, settings, heat and the monitor decide what a real PC delivers.