A deceptively heavy isometric survival game. Its Java-based engine relies heavily on CPU and RAM for zombie AI and simulation. 8GB of RAM is the minimum for late-game scenarios or multiplayer.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, frame rates range from 23 to 62 FPS depending on quality settings. At 1440p, frame rates range from 21 to 57 FPS. At 4K, frame rates range from 11 to 28 FPS.
The GeForce RTX 4090 is 1051% above the recommended GPU (GeForce GTX 750) for Project Zomboid. The Ryzen Threadripper PRO 3945WX is 422% above the recommended CPU (Core i5-4460).
The GeForce RTX 4090 sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the Ryzen Threadripper PRO 3945WX still has additional frame-generation headroom.
Approximated average price on current market:
Combo price: $1749. At 1080p Ultra, this combo delivers 23 FPS, equivalent to 0.01 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.035 fps/$ | 0.025 fps/$ | 0.019 fps/$ | 0.013 fps/$ |
| 1440p | 0.033 fps/$ | 0.022 fps/$ | 0.017 fps/$ | 0.012 fps/$ |
| 4k | 0.016 fps/$ | 0.011 fps/$ | 0.008 fps/$ | 0.006 fps/$ |
* Table values represent FPS per Dollar (higher is better)
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 4k high, the GeForce RTX 4090 sets the ceiling at about 17 FPS, while the Ryzen Threadripper PRO 3945WX has headroom up to 91 FPS. In this scenario, the GPU limits the CPU potential by 81% (FPS gap: 74 FPS). Overall distribution: GPU limits 12/12 cells, CPU limits 0/12, balanced 0/12.
Your GeForce RTX 4090 is the limiting side in the heaviest mismatch. This means part of the Ryzen Threadripper PRO 3945WX frame-generation potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | GPU Limits CPU 63% | GPU Limits CPU 67% | GPU Limits CPU 65% | GPU Limits CPU 72% |
| 1440p (2K QHD) | GPU Limits CPU 66% | GPU Limits CPU 72% | GPU Limits CPU 70% | GPU Limits CPU 76% |
| 4K (Ultra HD) | GPU Limits CPU 78% | GPU Limits CPU 80% | GPU Limits CPU 81% | GPU Limits CPU 81% |
We estimate the maximum FPS the processor can sustain and the maximum FPS the graphics card can sustain in each setting, then compare those limits directly.
Limit Factor formula: (stronger - weaker) / stronger. Example: if CPU ceiling is 200 FPS and GPU ceiling is 140 FPS, then GPU limits CPU by 30%.
CPU Limits GPU means the processor ceiling is lower. GPU Limits CPU means the graphics ceiling is lower. Balanced means the FPS ceilings are close enough that the gap is negligible.
A component can still be the FPS limiter without reaching 100% utilization. The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.
See how your processor and graphics card compare against the game official minimum and recommended system specs. The placement of your hardware is calculated using relative synthetic performance scores to help you gauge overall playability.
Your CPU is 422% above and your GPU is 1051% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+422%vsrecommended
+1051%vsrecommended
+1376%vsminimum
+2422%vsminimum
The Ryzen Threadripper PRO 3945WX and GeForce RTX 4090 will struggle to run Project Zomboid at smooth framerates. At 1080p Ultra, you can expect around 23 FPS which is classified as "struggling". Consider lowering settings or upgrading your hardware.
This CPU + GPU combo costs approximately $1749 ($100 CPU + $1649 GPU). Your GeForce RTX 4090 provides phenomenal top-tier performance but at a premium enthusiast price. Since you are essentially at the ceiling of current hardware capabilities, there are no meaningful performance upgrades available. However, if you wanted a more cost-effective build that still delivers a great experience, you could theoretically step down to a high-end card with a significantly better value rating.
Your GeForce RTX 4090 is already a top-tier graphics card. While it's technically the limiting factor here (which means you are fully utilizing your GPU's visual horsepower exactly as intended), there is no meaningful upgrade path that would drastically improve your Project Zomboid performance right now. GPU fully utilized at: 1080p low, 1080p medium, 1080p high, 1080p ultra, 1440p low, 1440p medium, 1440p high, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra.
Project Zomboid does not currently support Frame Generation technologies like DLSS 3 or FSR 3. Your performance is based entirely on native rendering. If the game adds support in a future update, newer GPUs will benefit the most.
Project Zomboid requires at minimum a Core 2 Quad Q6600 (CPU) and GeForce 6600 (GPU) with 8 GB RAM and 5 GB storage. For the recommended experience, you need a Core i5-4460 and GeForce GTX 750 with 8 GB RAM. Your Ryzen Threadripper PRO 3945WX and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These Project Zomboid FPS results are not arbitrary numbers. They come from calculations informed by thousands of real gaming benchmarks, and the typical accuracy range is around 10% to 15%. That makes them far more useful than generic FPS calculators that simply invent values without a benchmark foundation. Actual in-game performance can still vary with drivers, updates, RAM configuration, cooling, and the exact scene being rendered.
Performance estimates are based on synthetic benchmarks and hardware capabilities.
Results may vary based on drivers, OS, and background processes.
