RobloxFPS onCore i5-10400F&GeForce RTX 4090

Roblox

Scales from mobile devices to high-end PCs. The engine is lightweight and typically capped at 60 FPS. It requires a stable internet connection for asset streaming and a DX10 compatible GPU.

This game has a built-in FPS cap of 60 FPS

Roblox - FPS Estimates by Resolution

Actual FPS may vary based on RAM speed, background processes, and other system factors

1080P
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
1440P
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
4K
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS

Performance Report

Roblox

GeForce RTX 4090 + Core i5-10400F
🎮Visual Experience

At 1080p, all quality settings exceed 326 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 315 FPS. At 4K, all settings exceed 271 FPS.

Official Requirements

The GeForce RTX 4090 is 843% above the recommended GPU (GeForce GTX 660) for Roblox. The Core i5-10400F is 495% above the recommended CPU (Core 2 Duo).

⚙️Bottleneck Analysis

At lower resolutions (1080p (low/medium/high), 1440p low), the Core i5-10400F determines the performance ceiling. As graphical load increases at (1080p ultra, 1440p ultra, all 4k settings), the GeForce RTX 4090 takes over as the primary performance factor. The system is well balanced at 1440p (medium/high).

💰Value Analysis

Approximated average price on current market:

GeForce RTX 4090:$1649(updated 2/6/2026)
Official Launch Price: $1599
Core i5-10400F:$102(updated 2/6/2026)
Official Launch Price: $160

Combo price: $1751. At 1080p Ultra, this combo delivers 326 FPS, equivalent to 0.19 FPS per dollar.

ResolutionLowMediumHighUltra
1080p0.186 fps/$0.186 fps/$0.186 fps/$0.186 fps/$
1440p0.186 fps/$0.186 fps/$0.186 fps/$0.180 fps/$
4k0.186 fps/$0.180 fps/$0.186 fps/$0.155 fps/$

* Table values represent FPS per Dollar (higher is better)

Performance Limiter Analysis

Core i5-10400F|GeForce RTX 4090
📈Analysis

At 1080p low, the Core i5-10400F sets the ceiling at about 326 FPS, while the GeForce RTX 4090 could reach 441 FPS. In this scenario, the CPU limits the GPU potential by 26% (FPS gap: 115 FPS). Overall distribution: CPU limits 4/12 cells, GPU limits 6/12, balanced 2/12.

Verdict

CPU Limits GPU

Your Core i5-10400F is the limiting side in the heaviest mismatch. This means part of the GeForce RTX 4090 rendering potential remains unused in those settings.

🧩Detailed Breakdown
1080p (Full HD)
LowCPU Limits GPU 26%
MediumCPU Limits GPU 20%
HighCPU Limits GPU 13%
UltraGPU Limits CPU 17%
1440p (2K QHD)
LowCPU Limits GPU 9%
MediumBalanced
HighBalanced
UltraGPU Limits CPU 20%
4K (Ultra HD)
LowGPU Limits CPU 16%
MediumGPU Limits CPU 17%
HighGPU Limits CPU 10%
UltraGPU Limits CPU 20%
Percentages show how much potential FPS of the stronger component is lost because the other component has a lower FPS ceiling.
🧠Methodology

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.

The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.

📊Predicted Hardware Utilization for Core i5-10400F and GeForce RTX 4090

1080p (Full HD)

Low
CPU26% - 60%
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GPU15% - 37%
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Medium
CPU25% - 59%
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GPU15% - 37%
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High
CPU26% - 62%
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GPU18% - 41%
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Ultra
CPU27% - 62%
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GPU17% - 41%
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1440p (2K QHD)

Low
CPU26% - 61%
<>
GPU21% - 51%
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Medium
CPU25% - 60%
<>
GPU23% - 51%
<>
High
CPU26% - 63%
<>
GPU25% - 55%
<>
Ultra
CPU27% - 63%
<>
GPU25% - 54%
<>

4K (Ultra HD)

Low
CPU26% - 61%
<>
GPU22% - 53%
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Medium
CPU25% - 61%
<>
GPU24% - 54%
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High
CPU26% - 64%
<>
GPU26% - 58%
<>
Ultra
CPU28% - 63%
<>
GPU26% - 57%
<>

Performance Summary

The Core i5-10400F + GeForce RTX 4090 pairing runs this title with CPU utilization between 25% and 64% and GPU utilization between 15% and 58%. Core i5-10400F keeps significant headroom across presets, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 28% at 1080p to 40% at 4K, while CPU averages move from 43% to 45%.

Bottleneck Analysis

The utilization pattern is relatively balanced. The GeForce RTX 4090 reaches 42% average at its highest-load preset, while the Core i5-10400F peaks at 46% average, with no single component consistently acting as a hard bottleneck.

Resolution Scaling

At 1080p, averages sit around CPU 43% and GPU 28%. At 1440p, that shifts to CPU 44% and GPU 38%, and at 4K it reaches CPU 45% and GPU 40%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.

Optimal Settings Recommendation

4K (Ultra HD) High is the most balanced preset based on this dataset. It runs around CPU 45% (26-64%) and GPU 42% (26-58%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Core i5-10400F remains stable for consistent frame delivery.

Upgrade Insight

Current utilization does not show an urgent upgrade requirement for either component; the Core i5-10400F and GeForce RTX 4090 remain reasonably matched for this title.

Understanding Hardware Utilization & Bottlenecks: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. This is the key to identifying performance bottlenecks in any system.

  • The Ideal Scenario (GPU Bottleneck): You typically want to see High GPU Utilization (90%+) and moderate CPU usage. This indicates your system is successfully pushing out graphics as fast as it can, without being held back by the CPU.
  • CPU Bottleneck: If you see High CPU Utilization (85%+) paired with lower GPU utilization, the CPU is struggling to compute game logic and prepare frames fast enough. The GPU sits waiting, often resulting in stuttering, inconsistent frame times, and lower overall FPS.
  • Engine Limits or Capped FPS: If both CPU and GPU utilization are relatively low, it means the hardware is waiting on something else. This could be a game engine limitation, poorly optimized code, or an artificial framerate cap like VSync holding performance back.

Data generated by our Machine Learning engine trained on real-world benchmarks. Shows the approximate average utilization at each setting.

Roblox Requirements Comparison

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.

CPU - Core i5-10400F
cpu icon
13,029
Your Score
MinimumCeleron D
RecommendedCore 2 Duo
GPU - GeForce RTX 4090
gpu icon
38,112
Your Score
MinimumGeForce 6600
RecommendedGeForce GTX 660

Your CPU is 495% above and your GPU is 843% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.

CPU

+495%vsrecommended

GPU

+843%vsrecommended

CPU

+334%vsminimum

GPU

+2422%vsminimum

Minimum Requirements
Video Card: GeForce 6600
Processor: Celeron D
Memory: 1 GB
Disk Space: 20 MB
System: Windows 10
Recommended Requirements
Video Card: GeForce GTX 660
Processor: Core 2 Duo
Memory: 4 GB
Disk Space: 1 GB
System: Windows 10

Frequently Asked Questions

1Can the Core i5-10400F and GeForce RTX 4090 run Roblox well?

Yes, the Core i5-10400F paired with the GeForce RTX 4090 can run Roblox smoothly up to 4k achieving around 271 FPS at Ultra quality. Your GPU is 843% above the recommended specs, and your CPU is 495% above the recommended requirements.

2Is there a more cost-effective setup to run Roblox?

This CPU + GPU combo costs approximately $1751 ($102 CPU (Rank #107 Value) + $1649 GPU (Rank #77 Value)). 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.

3Which component should I upgrade first to improve Roblox performance?

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 Roblox performance right now. GPU fully utilized at: 1080p ultra, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra. CPU-limited at: 1080p low, 1080p medium, 1080p high, 1440p low.

4Does this setup support Frame Generation for Roblox?

Roblox 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.

5What are the minimum and recommended specs for Roblox?

Roblox requires at minimum a Celeron D (CPU) and GeForce 6600 (GPU) with 1 GB RAM and 20 MB storage. For the recommended experience, you need a Core 2 Duo and GeForce GTX 660 with 4 GB RAM. Your Core i5-10400F and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.

6How accurate are these Roblox FPS estimates for the Core i5-10400F and GeForce RTX 4090?

These Roblox 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.