Garry's Mod
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 481 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 442 FPS. At 4K, all settings exceed 304 FPS.
The GeForce RTX 4090 Mobile is 717% above the recommended GPU (GeForce GTX 750) for Garry's Mod. The Ryzen 7 9800X3D is 203% above the recommended CPU (Core i5).
The GeForce RTX 4090 Mobile 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.
This chart answers a simple question: which upgrade is more likely to increase FPS first? In this case, the answer is clearly the GPU.
The largest gap appears at 1080p Ultra, where the GeForce RTX 4090 Mobile reaches about 368 FPS, while the Ryzen 7 9800X3D still has headroom up to roughly 516 FPS.
That means the GeForce RTX 4090 Mobile is hitting its performance ceiling first, leaving a 29% gap versus the Ryzen 7 9800X3D's available headroom in the most unbalanced scenario. Across all tested settings, this pairing is GPU-limited in 12 out of 12 cases, with 0 CPU-limited and 0 balanced results.
Overall, this is a clearly GPU-bound combination in this game.
The GeForce RTX 4090 Mobile is consistently the limiting part in this game, so upgrading the GPU is more likely to deliver a larger FPS gain than upgrading the CPU.
This chart shows which upgrade is more likely to unlock more FPS in each tested setting. The lower line represents the part that reaches its limit first. When the CPU and GPU lines stay close together, the system is more balanced. When the gap widens, one component is more clearly holding the other back. Hover any setting to inspect it.
The lower line is the current limiter. The closer the two lines are, the more balanced the CPU and GPU are for this game.
Each line represents an estimated FPS ceiling for one component, rather than live usage alone.
To estimate the CPU ceiling, we pair the Ryzen 7 9800X3D with GeForce RTX 5090, our current GPU anchor. To estimate the GPU ceiling, we pair the GeForce RTX 4090 Mobile with Ryzen 9 9950X3D, our current CPU anchor.
The lower line indicates the current limiter, since that component reaches its FPS ceiling first. In most scenarios, that is also the part most likely to deliver the bigger performance uplift if upgraded first.
The percentage shown represents the gap between the two ceilings. In practical terms, it shows how much of the stronger component's potential is left unused because the weaker one becomes the bottleneck first.
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 717% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+203%vsrecommended
+717%vsrecommended
+1232%vsminimum
+8096%vsminimum
Yes, the Ryzen 7 9800X3D paired with the GeForce RTX 4090 Mobile can run Garry's Mod smoothly up to 4k achieving around 304 FPS at Ultra quality. Your GPU is 717% above the recommended specs, and your CPU is 203% above the recommended requirements.
Price data is not currently available for this combination. In general, look for setups where the CPU and GPU are balanced - this ensures you're not overspending on one component that the other can't keep up with.
For Garry's Mod, upgrading the GPU would usually give you the most noticeable improvement. In the Performance Limiter Analysis, the GeForce RTX 4090 Mobile is the side that most often caps the frame rate, while the Ryzen 7 9800X3D still has additional headroom in the tested presets. If you want to unlock more of the pairing's current ceiling, a stronger graphics card like RTX PRO 5000 Blackwell Mobile would be the clearest next step. The main bottleneck appears on the GPU side. The largest gap shows up at 1080p Ultra, where the GPU reaches about 368 FPS while the CPU still has headroom up to roughly 516 FPS. Across all tested settings, the distribution is 12/12 GPU-limited, 0/12 CPU-limited, and 0/12 balanced.
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 Mobile 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.
