Roblox

The Intel Core i5-9400 and Intel Arc B570 combination delivers a remarkably consistent and high-performance experience in Roblox, with the data showing average frame rates ranging from 65 FPS at 4K Ultra to 262 FPS at 1080p Low. This pairing places the system in the 2405th position out of 3010 tested combinations, indicating a solid mid-tier standing that comfortably exceeds the demands of the game. The benchmark results reveal a platform where the CPU provides a stable foundation while the GPU scales effectively with resolution and settings, creating a balanced system that never falls below playable thresholds.

CPU Role

The Intel Core i5-9400 serves as the processing backbone of this configuration, bringing six cores and six threads to the workload. Its base clock of 2.90 GHz and boost clock of 4.10 GHz provide the raw frequency headroom needed to feed the discrete graphics card. In synthetic benchmarks, the processor scores 6629 points in Cinebench R23 multi-core and 935 points in the single-core test, which positions it at the 47th percentile among all CPUs. The Geekbench results echo this performance tier, with a multi-core score of 5141 and a single-core score of 1389.

The processor's 9 MB of shared L3 cache and 42.7 GB/s memory bandwidth establish a competent platform for Roblox's engine. When examining the nearest rival scores, the i5-9400 sits within a very tight performance band: it trails the Intel Core i7-1068NG7 by 0.2% (2259 vs 2254 average score) and leads the Intel Core i7-10710U by 0.3% (2248 vs 2254). The AMD Ryzen 5 PRO 1500 sits 0.4% behind at 2246, while the Intel Core i3-10305 leads by 0.4% at 2264. This clustering around the 2254 average benchmark score confirms the CPU is operating exactly at its expected performance level, neither overachieving nor underdelivering in the broader context.

For Roblox specifically, the CPU's single-threaded performance is the critical factor, as the game's physics and scripting logic rely heavily on one or two cores. The 935-point R23 single-core result and 392-point R20 single-core score indicate sufficient headroom to maintain high frame rates at lower resolutions where the GPU is not the limiting factor. The 14 nm Coffee Lake architecture, while older, provides the necessary instruction throughput for a game released in 2006 that has evolved incrementally. The processor's 65 W TDP suggests efficient power delivery that does not create thermal constraints that would throttle performance during extended sessions.

GPU Role

The Intel Arc B570 represents the visual processing powerhouse in this pairing, built on the Xe2-HPG architecture with a 5 nm process from TSMC. The GPU features 10 GB of GDDR6 memory on a 160-bit bus, delivering 380.0 GB/s of bandwidth to feed the rendering pipeline. Its 2304 shading units, 144 texture mapping units, and 80 render output units provide substantial compute resources for Roblox's block-based worlds. The base and boost clocks both sit at 2500 MHz, with memory operating at 2375 MHz (19 Gbps effective).

The GPU's benchmark profile shows strong DirectX capabilities: a PassMark G3D score of 14195 and a 3DMark Steel Nomad DX12 score of 2649. Its Geekbench results reach 83514 in OpenCL and 96844 in Vulkan, demonstrating robust compute and graphics performance across API paradigms. The Arc B570 holds the 65th percentile among all GPUs, with an average benchmark score of 20556. Its nearest rivals show tight competition: the NVIDIA GeForce RTX 3070 Mobile scores 20534 (0.1% behind), the Intel Arc A750 scores 20582 (0.1% ahead), and the AMD Radeon R9 M390X scores 20662 (0.5% ahead). The NVIDIA Quadro M4000M trails at 20480, 0.4% behind.

In Roblox, the GPU's 10 GB VRAM capacity is more than sufficient for the game's modest texture requirements, even at 4K resolution. The 380.0 GB/s memory bandwidth ensures that texture streaming and scene composition do not become bottlenecks, as evidenced by the measured frame rates remaining above 65 FPS even at the highest settings. The 11.52 TFLOPS of FP32 compute power and 200.0 GPixel/s pixel rate provide ample rasterization capability for the game's relatively simple geometry, while the 360.0 GTexel/s texture rate handles the blocky textures efficiently. The DirectX 12 Ultimate support and Vulkan 1.4 compatibility ensure the GPU can leverage modern API features where Roblox's engine permits.

Resolution Scaling

The measured frame rates across resolutions reveal a system that scales predictably, with the GPU becoming increasingly dominant as resolution increases. At 1080p, the average FPS across all settings ranges from 171 at Ultra to 262 at Low, indicating that the CPU is the primary limiter at this resolution. The 211 FPS High setting and 239 FPS Medium setting show that even at lower resolutions, the i5-9400's single-thread performance caps the achievable frame rates.

Moving to 1440p, the frame rates remain high but begin to show GPU influence: Low averages 175 FPS, Medium 159 FPS, High 141 FPS, and Ultra 114 FPS. The transition from 1080p to 1440p shows a consistent drop of roughly 20-30% across settings, which aligns with the increased pixel count. The 4K results demonstrate the GPU's scaling characteristics more clearly: Low produces 99 FPS, Medium 90 FPS, High 80 FPS, and Ultra 65 FPS. The drop from 1440p to 4K is more pronounced, with High falling from 141 to 80 FPS (a 43% reduction), indicating the GPU is now the primary limiting factor.

The data shows that at 1080p, the system is heavily CPU-bound; the difference between Low and Ultra settings is only 91 FPS (262 vs 171), which reflects the GPU having ample headroom. At 4K, the spread narrows to 34 FPS (99 vs 65), demonstrating that the GPU's rendering load is now the constraint. The Medium setting at each resolution provides the most complete data with min and max frame rates: at 1080p, the range is 203-275 FPS; at 1440p, 135-183 FPS; and at 4K, 77-104 FPS. These ranges indicate stable frame pacing with no severe drops, suggesting the combination handles Roblox's workload without stuttering or micro-freezes.

How This Combo Ranks

The combination of the Intel Core i5-9400 and Intel Arc B570 achieves a rank of 2405 out of 3010 tested combos in Roblox, placing it in the 80th percentile of all systems tested. This ranking reflects a balanced pairing where neither component is severely mismatched for the game's requirements. The CPU's 47th percentile standing among all CPUs and the GPU's 65th percentile among all GPUs combine to produce a system that outperforms its individual component percentiles might suggest, indicating efficient utilization in Roblox's workload.

Compared to other tested combos, this system sits above the median but below the top-tier configurations that would feature newer high-core-count CPUs paired with flagship GPUs. The ranking suggests that for Roblox, this combination provides a strong experience that would satisfy most users seeking smooth gameplay. The system's position in the 2405th slot out of 3010 means roughly 80% of tested combos rank lower, which is a favorable standing for a mid-range pairing.

The measured frame rates across all resolutions and settings never drop below 65 FPS, which means the system maintains playable performance even under the most demanding 4K Ultra configuration. This consistent performance supports the rank's implication that the combo is well-suited for Roblox, as the game rarely presents scenarios that would push either component to its limit. The tight clustering of rival scores for both components further suggests that the system's performance is predictable and within expected parameters for its hardware class.

Measured FPS Breakdown

The following data represents the measured frame rates for this specific CPU-GPU combination in Roblox across all tested configurations:

4K (3840x2160):

• Low: 99 FPS average
• Medium: 90 FPS average, with minimum 77 FPS and maximum 104 FPS
• High: 80 FPS average
• Ultra: 65 FPS average

1440p (2560x1440):

• Low: 175 FPS average
• Medium: 159 FPS average, with minimum 135 FPS and maximum 183 FPS
• High: 141 FPS average
• Ultra: 114 FPS average

1080p (1920x1080):

• Low: 262 FPS average
• Medium: 239 FPS average, with minimum 203 FPS and maximum 275 FPS
• High: 211 FPS average
• Ultra: 171 FPS average

These results demonstrate a clear hierarchy: higher resolutions and quality settings both reduce average frame rates, but the system never falls below 65 FPS. The Medium settings provide the most stable frame pacing, as evidenced by the only configurations with recorded minimum and maximum values. The spread between minimum and maximum at Medium settings remains tight—27 FPS at 4K, 48 FPS at 1440p, and 72 FPS at 1080p—indicating consistent performance without significant frame time spikes.

The frame rate progression from Low to Ultra at each resolution follows a similar pattern: approximately 10-15% reduction per quality tier. At 1080p, the drop from Low to Ultra is 91 FPS (35% reduction), while at 4K the drop is 34 FPS (34% reduction). This proportional scaling suggests the GPU's rendering workload increases uniformly with quality settings, and the system handles the increased load gracefully.

FAQ

Q: What is the highest average frame rate achieved by this combination?

A: The highest measured average is 262 FPS, achieved at 1920x1080 resolution with Low settings. The next highest is 239 FPS at 1080p Medium, followed by 211 FPS at 1080p High.

Q: Does this system maintain 60 FPS at 4K resolution?

A: Yes, all 4K settings produce average frame rates above 60 FPS. The lowest is 65 FPS at Ultra settings, while Low settings reach 99 FPS, Medium achieves 90 FPS, and High delivers 80 FPS.

Q: How does the Intel Core i5-9400 compare to its nearest rival in CPU benchmarks?

A: The i5-9400 has an average benchmark score of 2254, which is 0.2% lower than the Intel Core i7-1068NG7 (2259) and 0.4% higher than the AMD Ryzen 5 PRO 1500 (2246). It also trails the Intel Core i3-10305 by 0.4% (2264).

Q: What is the GPU's percentile ranking among all GPUs?

A: The Intel Arc B570 ranks in the 65th percentile among all GPUs, with an average benchmark score of 20556. Its closest competitor is the NVIDIA GeForce RTX 3070 Mobile, which scores 20534 and is 0.1% behind.

Q: Which resolution shows the biggest FPS drop from Low to Ultra settings?

A: In absolute terms, 1080p shows the biggest drop of 91 FPS (from 262 to 171). However, as a percentage, the drop is roughly equal across resolutions: 34% at 4K, 35% at 1440p, and 35% at 1080p.

Q: What are the minimum frame rates recorded at Medium settings?

A: At 4K Medium, the minimum is 77 FPS. At 1440p Medium, the minimum is 135 FPS. At 1080p Medium, the minimum is 203 FPS. These are the only settings with recorded minimum frame rates.

Settings Recommendations

Based on the measured frame rates, the Medium preset offers the best balance of visual quality and performance stability. This is the only settings tier that includes minimum and maximum frame rate data, suggesting it was the reference configuration for stability testing. At Medium settings, the system delivers 90 FPS at 4K, 159 FPS at 1440p, and 239 FPS at 1080p—all well above the thresholds for smooth gameplay. The minimum frame rates of 77 FPS at 4K and 135 FPS at 1440p ensure that even the most demanding scenes avoid noticeable stutter.

For users with 1080p displays, the High preset at 211 FPS provides a significant visual upgrade over Medium with only a 28 FPS loss, while still delivering frame rates far exceeding display refresh rates. The Ultra preset at 171 FPS remains viable for competitive play, as the frame rate stays above 144 FPS, but the performance cost relative to High may not justify the marginal visual improvements in Roblox's block-based aesthetic.

At 1440p, the High preset at 141 FPS offers the best experience, as it provides smooth gameplay on high-refresh-rate monitors while maintaining visual fidelity. The Ultra preset at 114 FPS is acceptable but may show occasional dips on demanding scenes. The Low preset at 175 FPS is unnecessary for most users, as Roblox's visual style does not benefit substantially from reduced quality settings.

For 4K displays, the Low preset at 99 FPS provides the most responsive experience, but the Medium preset at 90 FPS with a 77 FPS minimum represents the best compromise. The Ultra preset at 65 FPS approaches the lower boundary of smoothness and should only be used if visual quality takes absolute priority. The data clearly shows that Medium settings across all resolutions provide the most consistent performance with the tightest frame pacing, making it the recommended default for this combination.