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, frame rates range from 54 to 126 FPS depending on quality settings. At 1440p, frame rates range from 42 to 90 FPS. At 4K, frame rates range from 23 to 56 FPS.
The GeForce RTX 4090 is 1051% above the recommended GPU (GeForce GTX 750) for Garry's Mod. The Core i5-6440HQ is 62% below recommended, but 67% above minimum.
The GeForce RTX 4090 sets the FPS ceiling at 1080p (medium/high/ultra), all 1440p settings, all 4k settings, while the Core i5-6440HQ still has additional frame-generation headroom. The FPS ceiling is closely matched at 1080p low.
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 4k ultra, the GeForce RTX 4090 sets the ceiling at about 29 FPS, while the Core i5-6440HQ has headroom up to 126 FPS. In this scenario, the GPU limits the CPU potential by 77% (FPS gap: 97 FPS). Overall distribution: GPU limits 11/12 cells, CPU limits 0/12, balanced 1/12.
Your GeForce RTX 4090 is the limiting side in the heaviest mismatch. This means part of the Core i5-6440HQ frame-generation potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | Balanced | GPU Limits CPU 21% | GPU Limits CPU 44% | GPU Limits CPU 58% |
| 1440p (2K QHD) | GPU Limits CPU 23% | GPU Limits CPU 39% | GPU Limits CPU 44% | GPU Limits CPU 59% |
| 4K (Ultra HD) | GPU Limits CPU 50% | GPU Limits CPU 54% | GPU Limits CPU 69% | GPU Limits CPU 77% |
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.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU84% - 99% <> GPU3% - 11% <> | CPU84% - 99% <> GPU3% - 11% <> | CPU84% - 99% <> GPU3% - 11% <> | CPU67% - 83% <> GPU8% - 21% <> |
| 1440p (2K QHD) | CPU78% - 92% <> GPU53% - 62% <> | CPU78% - 92% <> GPU53% - 62% <> | CPU78% - 92% <> GPU53% - 62% <> | CPU62% - 76% <> GPU58% - 72% <> |
| 4K (Ultra HD) | CPU78% - 92% <> GPU53% - 62% <> | CPU78% - 92% <> GPU53% - 62% <> | CPU78% - 92% <> GPU53% - 62% <> | CPU62% - 76% <> GPU58% - 72% <> |
The Core i5-6440HQ + GeForce RTX 4090 pairing runs this title with CPU utilization between 62% and 99% and GPU utilization between 3% and 72%. Core i5-6440HQ reaches high load in heavier scenarios, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 9% at 1080p to 60% at 4K, while CPU averages move from 88% to 81%.
From a utilization perspective, this is a CPU-heavy load profile. At 1080p (Full HD) Low, the Core i5-6440HQ reaches 92% average load (84-99%), while the GeForce RTX 4090 remains comparatively lower at 7% (3-11%). This points to heavier CPU-side frame preparation work, but utilization alone does not define the FPS limiter.
At 1080p, averages sit around CPU 88% and GPU 9%. At 1440p, that shifts to CPU 81% and GPU 60%, and at 4K it reaches CPU 81% and GPU 60%. This shows that workload scaling is present on both components, with stronger pressure on the GPU.
1440p (2K QHD) Ultra is the most balanced preset based on this dataset. It runs around CPU 69% (62-76%) and GPU 65% (58-72%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Core i5-6440HQ remains stable for consistent frame delivery.
Upgrade priority should be the CPU. The Core i5-6440HQ reaches 92% average load at 1080p (Full HD) Low while the GeForce RTX 4090 remains comparatively underutilized, so a faster processor would improve frame-time consistency and top-end FPS.
Understanding Hardware Utilization: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. They describe hardware load, but they do not directly tell you which component sets the FPS ceiling.
Important: a CPU or GPU can still be the FPS limiter without reaching 100% utilization. Two processors can both show 40% usage and still deliver very different frame rates, depending on per-core speed, cache, engine threading, driver overhead, and frame preparation efficiency.
Data generated by our Machine Learning engine trained on real-world benchmarks. Shows the approximate average utilization at each setting.
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 62% below recommended and your GPU is 1051% below recommended, but both meet minimum specs. Playable at Low/Medium settings, 1080p or below.
-62%vsrecommended
+1051%vsrecommended
+67%vsminimum
+11449%vsminimum
The Core i5-6440HQ and GeForce RTX 4090 will struggle to run Garry's Mod at smooth framerates. At 1080p Ultra, you can expect around 54 FPS which is classified as "playable". Consider lowering settings or upgrading your hardware.
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.
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: 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 setup meets the minimum requirements but falls short of the recommended specs. You may need to lower some settings for smooth performance.
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.
