A timeless classic. It is bound by single-thread performance but is so lightweight that it runs on practically any functional PC today.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, all quality settings exceed 450 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 340 FPS. At 4K, all settings exceed 257 FPS.
The GeForce RTX 4090 is 29675% above the recommended GPU (GeForce 7600) for Left 4 Dead 2. The Ryzen Threadripper PRO 9955WX is 2984% above the recommended CPU (Core 2 Duo 2.4GHz).
At lower resolutions (4k (medium/high/ultra)), the Ryzen Threadripper PRO 9955WX sets the FPS ceiling. As graphical load increases at (1440p low), the GeForce RTX 4090 becomes the FPS-limiting side. The FPS ceiling is closely matched at all 1080p settings, 1440p (medium/high/ultra), 4k low.
Approximated average price on current market:
Combo price: $2099. At 1080p Ultra, this combo delivers 450 FPS, equivalent to 0.21 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.333 fps/$ | 0.286 fps/$ | 0.238 fps/$ | 0.214 fps/$ |
| 1440p | 0.239 fps/$ | 0.219 fps/$ | 0.184 fps/$ | 0.162 fps/$ |
| 4k | 0.177 fps/$ | 0.160 fps/$ | 0.140 fps/$ | 0.122 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 Ryzen Threadripper PRO 9955WX sets the ceiling at about 320 FPS, while the GeForce RTX 4090 could reach 370 FPS. In this scenario, the CPU limits the GPU potential by 14% (FPS gap: 50 FPS). Overall distribution: CPU limits 3/12 cells, GPU limits 2/12, balanced 7/12.
The Ryzen Threadripper PRO 9955WX 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) | GPU Limits CPU 6% | Balanced | Balanced | Balanced |
| 1440p (2K QHD) | GPU Limits CPU 7% | Balanced | Balanced | Balanced |
| 4K (Ultra HD) | Balanced | CPU Limits GPU 7% | CPU Limits GPU 14% | CPU Limits GPU 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, not generic utilization heuristics.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU2% - 11% <> GPU7% - 25% <> | CPU4% - 13% <> GPU9% - 24% <> | CPU4% - 13% <> GPU9% - 24% <> | CPU3% - 13% <> GPU8% - 24% <> |
| 1440p (2K QHD) | CPU2% - 11% <> GPU10% - 31% <> | CPU4% - 13% <> GPU9% - 30% <> | CPU4% - 13% <> GPU9% - 30% <> | CPU3% - 13% <> GPU9% - 30% <> |
| 4K (Ultra HD) | CPU2% - 11% <> GPU22% - 56% <> | CPU3% - 13% <> GPU24% - 57% <> | CPU3% - 13% <> GPU24% - 57% <> | CPU3% - 13% <> GPU23% - 56% <> |
The Ryzen Threadripper PRO 9955WX + GeForce RTX 4090 pairing runs this title with CPU utilization between 2% and 13% and GPU utilization between 7% and 57%. Ryzen Threadripper PRO 9955WX keeps significant headroom across presets, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 16% at 1080p to 40% at 4K, while CPU averages move from 8% to 8%.
Neither component is close to saturation: CPU tops out at 13% and GPU at 57%. This pattern suggests possible engine-side limits, an FPS cap, or workload constraints unrelated to raw hardware throughput. It also shows why low utilization does not automatically mean there is no FPS limiter.
At 1080p, averages sit around CPU 8% and GPU 16%. At 1440p, that shifts to CPU 8% and GPU 20%, and at 4K it reaches CPU 8% and GPU 40%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
4K (Ultra HD) Medium is the most balanced preset based on this dataset. It runs around CPU 8% (3-13%) and GPU 40% (24-57%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Ryzen Threadripper PRO 9955WX remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the Ryzen Threadripper PRO 9955WX and GeForce RTX 4090 remain reasonably matched for this title.
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 2984% above and your GPU is 29675% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+2984%vsrecommended
+29675%vsrecommended
+2152%vsminimum
+2422%vsminimum
Yes, the Ryzen Threadripper PRO 9955WX paired with the GeForce RTX 4090 can run Left 4 Dead 2 smoothly up to 4k achieving around 257 FPS at Ultra quality. Your GPU is 29675% above the recommended specs, and your CPU is 2984% above the recommended requirements.
This CPU + GPU combo costs approximately $2099 ($450 CPU (Rank #60 Value) + $1649 GPU (Rank #77 Value)). Your Ryzen Threadripper PRO 9955WX 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 processor with a significantly better value rating. For example, the Ryzen Threadripper 9980X is a great upgrade option for around $4999 (Rank #383 for value).
Your Ryzen Threadripper PRO 9955WX is already an incredibly powerful processor. While it's technically the first component to hit its limit (which is completely normal in state-of-the-art builds), there is no meaningful upgrade path that would drastically improve your Left 4 Dead 2 performance right now. CPU fully utilized at: 4k medium, 4k high, 4k ultra. GPU fully utilized at: 1440p low.
Left 4 Dead 2 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.
Left 4 Dead 2 requires at minimum a Pentium 4 3.0GHz (CPU) and GeForce 6600 (GPU) with 2 GB RAM and 13 GB storage. For the recommended experience, you need a Core 2 Duo 2.4GHz and GeForce 7600 with 2 GB RAM. Your Ryzen Threadripper PRO 9955WX and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These Left 4 Dead 2 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.
