Roblox

Roblox, a sandbox title released in 2006, presents a unique scaling profile for the Intel Core i5-10400F and AMD Radeon RX 9070 combination. The measured data shows this pairing is capable of extremely high frame rates, with performance scaling predictably across resolutions. The benchmark results indicate that the RX 9070 is the dominant contributor to frame generation, but the i5-10400F's six cores and twelve threads still play a significant role in maintaining these high outputs.

Resolution Scaling

The frame rate drop from 1080p to 4K is substantial, revealing how the workload shifts between components. At 1920x1080 with High settings, the combo produces 381.3 FPS. Moving to 2560x1440 High, the average drops to 251.4 FPS, a reduction of approximately 34%. At 3840x2160 High, the average falls further to 145.2 FPS, which is about a 62% decrease from the 1080p result. This steep decline indicates that while the RX 9070 is powerful, the pixel throughput demand at 4K begins to tax even its 16 GB of GDDR6 memory and 644.6 GB/s bandwidth.

The gap between Low and Ultra settings widens as resolution increases. At 1080p, the spread from Low (473.8 FPS) to Ultra (310.4 FPS) is 163.4 FPS. At 1440p, the spread is 113.4 FPS (318.2 down to 204.8). At 4K, the spread narrows to 63.1 FPS (181.1 down to 118.0). This pattern suggests that at lower resolutions, the CPU and GPU have enough headroom to render extra effects without severe penalty, but at 4K, the fixed cost of pixel processing becomes the limiting factor. The data shows that the RX 9070 is the primary bottleneck at 4K, as the frame rate compression across settings points to a component that is running out of raw shading throughput rather than being limited by settings complexity.

GPU Role

The AMD Radeon RX 9070, based on the Navi 48 chip and RDNA 4.0 architecture, is clearly the engine driving these results. Its boost clock of 2520 MHz and game clock of 2070 MHz provide the computational muscle. The card's 3584 shading units and 128 ROPs deliver a pixel rate of 322.6 GPixel/s, which directly translates to the high fill rates needed for Roblox's blocky but increasingly complex scenes. The 16 GB of GDDR6 memory on a 256-bit bus with 644.6 GB/s bandwidth ensures that texture streaming and asset loading do not become a constraint, even at 4K resolution.

The GPU's benchmark scores corroborate its strong gaming performance. It achieves a passmark_g3d score of 25381 and a 3dmark_steel_nomad_dx12 score of 6290, placing it in the 79th percentile of all GPUs. Its average benchmark score of 34780 is nearly identical to the NVIDIA A2, which sits at 34866 (a deltaPct of -0.2%), and the NVIDIA Quadro GV100 at 34677 (deltaPct of 0.3%). This positioning suggests that while the RX 9070 is not a top-tier halo product, it is a very capable high-end card that excels in scenarios where raw fill rate and memory bandwidth are paramount. The data shows that the GPU is the star of this pairing, with the measured FPS in Roblox far exceeding what a mid-range card would produce.

FAQ

Q: What is the maximum average frame rate achievable with this combo?

A: The highest recorded average is 473.8 FPS, achieved at 1920x1080 with Low settings.

Q: How does the CPU compare to its nearest rivals in synthetic benchmarks?

A: The Intel Core i5-10400F has an average benchmark score of 14168, which places it 0.4% ahead of the AMD EPYC 7552 (14115) but 0.8% behind the AMD Ryzen 3 7320C (14277) and 1.1% behind the Intel Core i5-8500 (14332).

Q: Is there a significant difference between Medium and High settings at 1440p?

A: Yes. The measured data shows Medium at 287.3 FPS and High at 251.4 FPS, a difference of 35.9 FPS in favor of Medium, which represents a 12.5% performance gain.

Q: What is the GPU's launch MSRP?

A: The launch MSRP for the AMD Radeon RX 9070 is 549 USD.

Q: Which component appears to be the limiting factor at 4K Ultra?

A: The data suggests the GPU is the primary limiter, as the frame rate drops to 118.0 FPS at 3840x2160 Ultra, a significant decline from the 204.8 FPS at 1440p Ultra, indicating the RX 9070's pixel throughput is being saturated.

Settings Recommendations

For users prioritizing maximum smoothness and responsiveness, the Low preset at 1080p provides the highest average at 473.8 FPS, but this sacrifices visual fidelity. The data shows that Medium settings at 1080p still deliver a very high 430.5 FPS, which is only 9% slower than Low, while offering a better visual experience. At 1440p, Medium stands out as the sweet spot, producing 287.3 FPS. This is only 10.7% below the Low setting's 318.2 FPS but grants considerably more graphical detail.

At 4K, the situation changes. High settings yield 145.2 FPS, which is a playable and smooth experience for a sandbox game. However, the step from High to Ultra at 4K is punishing, dropping the average to 118.0 FPS, a reduction of 18.7%. Given the minimal visual gains typically seen between High and Ultra in such titles, High at 3840x2160 offers the best balance of performance and quality. The measured rows indicate that pushing to Ultra at 4K does not provide a proportional frame rate benefit.

Measured FPS Breakdown

At 1920x1080, the frame rates are exceptionally high across all presets. Low averages 473.8 FPS, Medium 430.5 FPS, High 381.3 FPS, and Ultra 310.4 FPS. The scaling is nearly linear, with each preset step costing roughly 40-70 FPS, showing that the CPU and GPU have ample headroom at this resolution.

At 2560x1440, the averages are still impressive but begin to show the GPU's workload. Low records 318.2 FPS, Medium 287.3 FPS, High 251.4 FPS, and Ultra 204.8 FPS. The drop from Low to Ultra is 113.4 FPS, which is a larger absolute gap than at 1080p, indicating that the GPU is now working harder to fill the additional pixels.

At 3840x2160, the averages remain high for such a demanding resolution. Low produces 181.1 FPS, Medium 165.1 FPS, High 145.2 FPS, and Ultra 118.0 FPS. The difference between Low and Ultra is 63.1 FPS, which is a smaller absolute gap than at lower resolutions. This compression suggests that the GPU's fixed-function units are becoming the bottleneck, as the relative cost of each setting decreases when the pixel fill rate is the primary constraint.

CPU Role

The Intel Core i5-10400F, with its 6 cores and 12 threads, is a solid mid-range processor that does not bottleneck the RX 9070 in Roblox. Its base clock of 2.90 GHz and boost clock of 4.30 GHz provide adequate single-thread performance, which is crucial for a game like Roblox that often relies on a primary simulation thread. The CPU's 3dmark_single_thread score of 688 and passmark_single_thread score of 2541 indicate that it can handle the game's logic and physics calculations without dragging down the GPU.

The CPU's multi-threaded capabilities, while not heavily utilized in this title, are still robust. It scores 10297 in cinebench_r23_multicore and 12115 in passmark_multithread, placing it in the 73rd percentile of all CPUs. Its nearest rivals, such as the AMD EPYC 7552 (deltaPct of 0.4%) and the Intel Core i5-8500 (deltaPct of -1.1%), show that it is a competitive part, but the data highlights that in Roblox, the GPU is the star. The measured FPS at 1080p Low (473.8) is so high that the CPU's memory bandwidth of 42.7 GB/s and 12 MB of shared L3 cache are sufficient to feed the GPU without creating a bottleneck. The results indicate that the i5-10400F is a capable partner, but it is the RX 9070 that defines the performance envelope.