Roblox

The Intel Core i5-12600KF paired with the Intel Arc B390 lands at rank 3289 out of 3711 tested combos in Roblox, placing it in the bottom 11% of all systems evaluated. This is a low-tier position, and the data reflects a system that is heavily constrained by its graphics solution. The CPU itself is a strong performer—its average benchmark score of 27799 puts it in the 79th percentile of all CPUs—but the Arc B390’s average score of 1482 places it in the 9th percentile of all GPUs. The combo’s ranking is therefore a direct consequence of the GPU holding the entire platform back, as the processor’s headroom is largely wasted in this title. Relative to the CPU’s nearest rivals, the i5-12600KF is essentially tied with the Intel Core i9-10900K (delta -0.3%), AMD Ryzen 5 8500GE (delta 0.3%), AMD Ryzen 7 6800U (delta -0.3%), and AMD Ryzen 7 5800X3D (delta -0.3%). This suggests the CPU is not the bottleneck, as the GPU’s nearest competitors—the NVIDIA GeForce GT 520MX (delta 1.3%), GeForce 800M (delta 1.5%), GT 625 OEM (delta 2.5%), and GT 710 (delta 2.7%)—are all ancient, low-end parts, confirming the graphics card’s severely limited capabilities.

Settings Recommendations

The measured FPS data provides clear guidance on the optimal settings for this combination. At 1080p, the Low preset delivers an average of 171 FPS, which is the highest frame rate recorded across all resolutions and settings. This is the only preset that approaches the high-refresh territory, though it still falls short of 144 Hz. The Medium preset at 1080p yields 155 FPS, which is a 9.4% drop from Low but still playable. However, the High preset drops to 137 FPS, and Ultra falls to 111 FPS. Given that the GPU is the limiting factor, the data suggests that Low or Medium are the only viable options for a smooth experience. The difference between Low and Medium at 1080p is 16 FPS, which is significant for a game like Roblox where fast-paced user-generated content can strain the system. The Medium preset also has a minimum FPS of 132, indicating more consistent frame times than Low, which lacks min/max data but likely dips below 130. For a balance of visual fidelity and performance, Medium at 1080p is the recommended choice, as it provides a 155 FPS average with a recorded minimum of 132, ensuring the experience remains fluid during busy scenes. Ultra at any resolution is not recommended, as it drops to 111 FPS at 1080p and 42 FPS at 4K, making it a poor trade-off for marginal visual gains. The data shows that this combo cannot reliably hold 60 FPS at Ultra in 4K, so users should avoid that preset entirely.

Resolution Scaling

The FPS drop from 1080p to 4K is dramatic and reveals a GPU-bound system. At Low settings, the average FPS falls from 171 at 1080p to 114 at 1440p (a 33.3% decrease) and then to 64 at 4K (a 62.6% decrease from 1080p). This steep decline is characteristic of a graphics card that runs out of processing power as pixel count increases. The Arc B390’s memory is "System Shared," meaning it relies on system RAM for video memory, and its bandwidth is "System Dependent," which further compounds the issue at higher resolutions. The GPU’s boost clock is 2500 MHz, but its 1536 shading units and 24 ROPs are simply too few to handle 4K workloads efficiently. At Medium settings, the drop is similar: 155 FPS at 1080p, 104 FPS at 1440p (a 32.9% decrease), and 59 FPS at 4K (a 61.9% decrease). The fact that the percentage drops are nearly identical across Low and Medium settings indicates that the GPU’s raw throughput, not memory bandwidth, is the primary constraint. The CPU, with its 10 cores and 16 threads, is not the limiting factor here—the i5-12600KF’s single-thread score of 1016 in 3DMark and 3925 in PassMark is more than sufficient for Roblox’s typically light CPU load. The data confirms that the Arc B390 is the bottleneck: at 4K Ultra, the combo manages only 42 FPS, which is a 62.2% drop from 1080p Ultra’s 111 FPS. This is a clear sign that the GPU cannot scale with resolution, and users should stick to 1080p or, at most, 1440p for acceptable performance.

Measured FPS Breakdown

At 1920x1080, the measured results show a clear hierarchy across presets. Low settings produce an average of 171 FPS, which is the best result in the entire dataset. Medium settings yield 155 FPS, with a minimum of 132 FPS and a maximum of 179 FPS, indicating a stable range. High settings drop to 137 FPS, and Ultra falls to 111 FPS. The gap between Low and Ultra is 60 FPS, which is a 35.1% reduction, demonstrating that the visual preset has a substantial impact on performance. At 2560x1440, the averages are 114 FPS for Low, 104 FPS for Medium (with a min of 88 and max of 119), 92 FPS for High, and 74 FPS for Ultra. The 1440p Medium result is 51 FPS lower than 1080p Medium, showing that the resolution increase costs about a third of the frame rate. At 3840x2160, the results become marginal: Low averages 64 FPS, Medium averages 59 FPS (with a min of 50 and max of 67), High averages 52 FPS, and Ultra averages 42 FPS. The 4K Ultra result is the worst in the dataset, and even 4K Low barely clears 60 FPS, which is often considered the minimum for smooth gameplay. The data shows a consistent pattern: the combo is usable at 1080p across all presets, playable at 1440p on Low and Medium, and only borderline at 4K on Low. The lack of min/max FPS data for several presets (Low, High, and Ultra at all resolutions) means we cannot comment on frame-time consistency for those settings, but the Medium preset at each resolution includes min/max values, providing a reference for what users can expect in terms of dips.

GPU Role

The Intel Arc B390 is an integrated graphics solution (IGP) based on the Xe3-LPG architecture, built on Intel’s 3 nm process. Its memory configuration is "System Shared," which means it has no dedicated VRAM; instead, it borrows from system memory, and bandwidth is "System Dependent." This is a fundamental limitation for gaming, as shared memory introduces latency and bandwidth bottlenecks. The GPU has a base clock of 300 MHz and a boost clock of 2500 MHz, but its 1536 shading units, 48 TMUs, and 24 ROPs are modest numbers. Its pixel rate of 60.00 GPixel/s and texture rate of 120.0 GTexel/s are low, and its FP32 performance of 7.680 TFLOPS is far below what discrete gaming GPUs offer. The 3DMark Steel Nomad DX12 score of 1482 places it in the 9th percentile of all GPUs, and its nearest rivals include the NVIDIA GeForce GT 520MX (score 1463, delta 1.3%), GeForce 800M (1460, delta 1.5%), GT 625 OEM (1446, delta 2.5%), and GT 710 (1443, delta 2.7%). These are all entry-level parts from over a decade ago, confirming that the Arc B390 is not designed for gaming. In Roblox, the GPU’s limitations manifest clearly: the measured FPS at 1080p Low is 171, which sounds decent, but the card’s low ROP count and shared memory cause the steep performance cliff at higher resolutions. The GPU also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but these API features cannot compensate for the lack of raw hardware power. The 12 RT cores are present but irrelevant at this performance level. The GPU’s TDP is 80 W, which is low, but this does not help in Roblox, where the bottleneck is the execution units, not power draw. The data shows that the GPU is the sole reason for the combo’s low rank, and any upgrade path would require replacing this IGP with a discrete solution.

FAQ

Q: What is the best resolution and settings combo for this system in Roblox?

A: The measured data shows that 1920x1080 with Medium settings is the optimal choice, providing an average FPS of 155 with a minimum of 132. This balances visual quality with smooth frame rates. 1080p Low yields 171 FPS, but the lack of min/max data for that preset makes Medium a safer bet for consistency.

Q: How does this combo rank against other tested systems in Roblox?

A: The Intel Core i5-12600KF + Intel Arc B390 ranks 3289 out of 3711 tested combos, placing it in the bottom 11.4% of all systems. This low rank is primarily due to the GPU, which sits in the 9th percentile of all graphics cards.

Q: Why does performance drop so sharply between 1080p and 4K?

A: The data shows that at Low settings, FPS drops from 171 at 1080p to 64 at 4K, a 62.6% reduction. This is because the Arc B390 has only 1536 shading units and relies on system-shared memory, which cannot handle the increased pixel workload at higher resolutions.

Q: Is the CPU or GPU the bottleneck in this combination?

A: The CPU is not the bottleneck. The i5-12600KF has an average benchmark score of 27799, placing it in the 79th percentile of all CPUs, and it is nearly tied with the AMD Ryzen 7 5800X3D in performance. The GPU, with a score of 1482 in the 9th percentile, is clearly the limiting factor.

Q: What are the measured FPS numbers at 1440p?

A: At 2560x1440, the averages are 114 FPS for Low, 104 FPS for Medium (with a min of 88 and max of 119), 92 FPS for High, and 74 FPS for Ultra. These numbers indicate that 1440p is only playable on Low or Medium settings.

Q: How does the Arc B390 compare to its nearest GPU rivals?

A: The Arc B390’s 3DMark Steel Nomad score of 1482 is slightly higher than the NVIDIA GeForce GT 520MX (1463, delta 1.3%), GeForce 800M (1460, delta 1.5%), GT 625 OEM (1446, delta 2.5%), and GT 710 (1443, delta 2.7%). This places it just above some of the weakest GPUs ever made.