Resolution Calculator
Compare display resolutions on total pixels and megapixels, and see which GPU tier you need for 60fps gaming at 1080p, 1440p, 4K and 8K.
What a resolution change really costs
Every frame your graphics card draws is a grid of pixels, so the number of pixels is the single biggest factor in how hard it has to work. 4K is not "twice" 1080p — it is twice the width and twice the height, which is four times the pixels.
pixels = width × height | 1080p = 2,073,600 1440p = 3,686,400 4K = 8,294,400
Frame rate does not fall quite as fast as pixel count
Some of the work in a frame is independent of resolution — geometry, physics, draw calls, and everything the CPU contributes. That means quadrupling the pixels does not quarter your frame rate; in practice you lose rather less. The estimate above uses that relationship rather than a straight division.
VRAM matters as much as speed
Higher resolutions need larger frame buffers and higher-resolution textures. 8 GB is increasingly tight at 1440p with high texture settings, and genuinely limiting at 4K. Running out of video memory causes sudden stutter rather than a gradual slowdown, which is far more unpleasant than simply having a lower average.
Upscaling changes the maths
DLSS, FSR and XeSS render at a lower internal resolution and reconstruct the image at your output resolution. In quality mode that is typically 67% of the linear resolution — less than half the pixels — for an image most people cannot distinguish from native. It is what makes 4K practical on mid-range cards.
Resolution shifts the bottleneck
Because the CPU's workload barely changes with resolution, moving up usually shifts you from being CPU-limited to GPU-limited. If the Bottleneck Calculator shows your processor holding you back at 1080p, a higher-resolution monitor genuinely uses hardware you already own.
Frequently asked questions
How much harder is 4K than 1440p?
4K has 8,294,400 pixels against 1440p's 3,686,400 - about 2.25 times as many. Expect to lose roughly 45-50% of your frame rate moving between them on the same hardware.
Is 1440p the sweet spot?
For most people, yes. It is a clear step up in sharpness from 1080p at 27 inches while costing about 78% more GPU work rather than 4K's 300%. Mid-range cards handle it comfortably at high refresh rates.
Does a higher resolution reduce CPU load?
It does not reduce it, but it does not increase it either. Because GPU load rises while CPU load stays flat, a CPU bottleneck often disappears at higher resolutions.
Should I use DLSS or FSR instead of lowering resolution?
Almost always yes. Upscaling from a lower internal resolution keeps user interface elements sharp and generally looks better than running the display below its native resolution, which forces the monitor to interpolate.