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 199 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 149 FPS. At 4K, all settings exceed 100 FPS.
The Radeon R9 390 is 167% above the recommended GPU (GeForce GTX 750) for Garry's Mod. The Ryzen 7 9800X3D is 203% above the recommended CPU (Core i5).
The Radeon R9 390 sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the Ryzen 7 9800X3D still has additional frame-generation headroom.
Approximated average price on current market:
Combo price: $530.38. At 1080p Ultra, this combo delivers 199 FPS, equivalent to 0.38 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.730 fps/$ | 0.601 fps/$ | 0.502 fps/$ | 0.375 fps/$ |
| 1440p | 0.564 fps/$ | 0.451 fps/$ | 0.375 fps/$ | 0.281 fps/$ |
| 4k | 0.375 fps/$ | 0.300 fps/$ | 0.251 fps/$ | 0.189 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 4k ultra, the Radeon R9 390 sets the ceiling at about 100 FPS, while the Ryzen 7 9800X3D has headroom up to 367 FPS. In this scenario, the GPU limits the CPU potential by 73% (FPS gap: 267 FPS). Overall distribution: GPU limits 12/12 cells, CPU limits 0/12, balanced 0/12.
Your Radeon R9 390 is the limiting side in the heaviest mismatch. This means part of the Ryzen 7 9800X3D frame-generation potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | GPU Limits CPU 42% | GPU Limits CPU 44% | GPU Limits CPU 53% | GPU Limits CPU 63% |
| 1440p (2K QHD) | GPU Limits CPU 50% | GPU Limits CPU 54% | GPU Limits CPU 61% | GPU Limits CPU 70% |
| 4K (Ultra HD) | GPU Limits CPU 59% | GPU Limits CPU 62% | GPU Limits CPU 67% | GPU Limits CPU 73% |
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 167% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+203%vsrecommended
+167%vsrecommended
+1232%vsminimum
+2583%vsminimum
Yes, the Ryzen 7 9800X3D paired with the Radeon R9 390 can run Garry's Mod smoothly up to 4k achieving around 100 FPS at Ultra quality. Your GPU is 167% above the recommended specs, and your CPU is 203% above the recommended requirements.
This CPU + GPU combo costs approximately $530.38 ($465.38 CPU + $65 GPU). Since the GPU is the main limiting factor, investing in a stronger GPU will improve your framerates and overall value. For example, upgrading to the GeForce GTX 1080 for around $599 (Rank #86 for value) could deliver noticeably better performance.
For Garry's Mod, upgrading the GPU would give you the most noticeable improvement. The Radeon R9 390 is the limiting factor here, while the Ryzen 7 9800X3D still has spare capacity. A more powerful GPU would unlock higher FPS, especially at higher resolutions and quality presets. GPU-limited 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.
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 Radeon R9 390 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.
