A Source engine sandbox where performance depends entirely on the mods and contraptions you spawn. RAM errors are common on systems with only 4GB.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, all quality settings exceed 517 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 480 FPS. At 4K, all settings exceed 348 FPS.
The GeForce RTX 4090 is 1051% above the recommended GPU (GeForce GTX 750) for Garry's Mod. The Ryzen 7 9800X3D is 203% above the recommended CPU (Core i5).
At lower resolutions (1080p (low/high)), the Ryzen 7 9800X3D sets the FPS ceiling. As graphical load increases at (1440p (low/ultra), 4k (low/ultra)), the GeForce RTX 4090 becomes the FPS-limiting side. The FPS ceiling is closely matched at 1080p (medium/ultra), 1440p (medium/high), 4k (medium/high).
Approximated average price on current market:
Combo price: $2114.38. At 1080p Ultra, this combo delivers 517 FPS, equivalent to 0.24 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.284 fps/$ | 0.256 fps/$ | 0.253 fps/$ | 0.245 fps/$ |
| 1440p | 0.248 fps/$ | 0.238 fps/$ | 0.236 fps/$ | 0.227 fps/$ |
| 4k | 0.200 fps/$ | 0.190 fps/$ | 0.178 fps/$ | 0.165 fps/$ |
* Table values represent FPS per Dollar (higher is better)
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages. Adjacent heavier settings are lightly stabilized to remove prediction jitter that would otherwise create impossible reversals.
At 1440p ultra, the GeForce RTX 4090 sets the ceiling at about 446 FPS, while the Ryzen 7 9800X3D has headroom up to 500 FPS. In this scenario, the GPU limits the CPU potential by 11% (FPS gap: 54 FPS). Overall distribution: GPU limits 8/12 cells, CPU limits 3/12, balanced 1/12.
The Ryzen 7 9800X3D and GeForce RTX 4090 stay close in effective frame-generation ceiling across most presets, so neither side consistently suppresses the other by a large margin.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 9% | CPU Limits GPU 6% | CPU Limits GPU 6% | Balanced |
| 1440p (2K QHD) | GPU Limits CPU 6% | GPU Limits CPU 6% | GPU Limits CPU 6% | GPU Limits CPU 11% |
| 4K (Ultra HD) | GPU Limits CPU 6% | GPU Limits CPU 6% | GPU Limits CPU 6% | GPU Limits CPU 11% |
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 and then monotonic-smoothed across heavier presets and resolutions, 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 203% above and your GPU is 1051% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+203%vsrecommended
+1051%vsrecommended
+1232%vsminimum
+11449%vsminimum
Yes, the Ryzen 7 9800X3D paired with the GeForce RTX 4090 can run Garry's Mod smoothly up to 4k achieving around 348 FPS at Ultra quality. Your GPU is 1051% above the recommended specs, and your CPU is 203% above the recommended requirements.
This CPU + GPU combo costs approximately $2114.38 ($465.38 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 Garry's Mod performance right now. GPU fully utilized at: 1440p low, 1440p ultra, 4k low, 4k ultra. CPU fully utilized at: 1080p low, 1080p high.
Garry's Mod 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.
Garry's Mod requires at minimum a Pentium 4 (CPU) and GeForce 6 series (GPU) with 4 GB RAM and 5 GB storage. For the recommended experience, you need a Core i5 and GeForce GTX 750 with 8 GB RAM. Your Ryzen 7 9800X3D and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These Garry's Mod 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.
