Roblox

Roblox is a sandbox title that rarely stresses modern hardware in the traditional sense, but the data for this specific combination of an AMD Ryzen 7 5700G and an NVIDIA GeForce RTX 4080 SUPER reveals a fascinating bottleneck dynamic. The results show a system capable of producing extreme frame rates, yet the scaling pattern indicates that the CPU, not the GPU, is the primary architect of performance limits at lower resolutions, while the GPU takes over as the resolution rises. This analysis breaks down the measured FPS data to explain exactly where the limits lie for this combo.

Resolution Scaling

The most telling metric in this dataset is the frame rate drop from 1080p to 4K. At 1920x1080 with High settings, the combo averages 515 FPS. Moving to 2560x1440 drops that to 343 FPS, a reduction of 172 FPS. At 3840x2160, the average falls further to 194 FPS. This trajectory shows a clear pattern: the GPU is being progressively loaded as pixel count increases, but the absolute numbers at 1080p are so high that they indicate a CPU ceiling rather than a GPU limit.

The scaling from 1440p to 4K is particularly instructive. The 343 FPS at 1440p High drops to 194 FPS at 4K High, a 43% reduction. This is a substantial drop that aligns with a GPU that is finally becoming the limiting factor. At 1080p, the 515 FPS mark is not something the RTX 4080 SUPER is struggling to produce; rather, it suggests that the Ryzen 7 5700G is feeding frames as fast as it can, and the GPU is waiting for more work. The evidence for this is in the Low settings results: at 1080p Low, the combo hits 640 FPS, but at 4K Low, it still manages 241 FPS.

Consider the Ultra settings data. At 1080p Ultra, the average is 417 FPS. At 1440p Ultra, it drops to 279 FPS. At 4K Ultra, it falls to 158 FPS. The gap between 1080p and 1440p Ultra (138 FPS) is larger than the gap between 1440p and 4K Ultra (121 FPS). This non-linear scaling suggests that at 1080p, the CPU is heavily involved in limiting performance, and as resolution increases, the GPU becomes the bottleneck, which then creates a more predictable scaling curve based on pixel throughput.

The Medium settings provide the only min FPS data in the pack. At 1080p Medium, the average is 582 FPS with a minimum of 495 FPS. At 1440p Medium, the average is 388 FPS with a minimum of 330 FPS. At 4K Medium, the average is 220 FPS with a minimum of 187 FPS. The minimum frame rates scale proportionally with the averages, indicating that the system is not experiencing severe stutters or frame time spikes, even when the CPU is under load. The data shows that the RTX 4080 SUPER is only fully utilized at 4K, where the gap between Low and Ultra settings is 83 FPS (241 to 158), compared to a 223 FPS gap at 1080p (640 to 417). This confirms that at 1080p, you are leaving GPU performance on the table due to the CPU.

CPU Role

The AMD Ryzen 7 5700G is a Zen 3 part with 8 cores and 16 threads, running at a base clock of 3.80 GHz and a boost clock of 4.60 GHz. It is built on a 7 nm process and features 16 MB of L3 cache. The benchmark data shows that this CPU is a solid performer for its generation, but it is not a top-tier gaming chip by modern standards. Its average benchmark score is 27051, which places it in the 79th percentile of all CPUs tested. This is respectable, but it is not in the upper echelon where you would expect to pair with a flagship GPU like the RTX 4080 SUPER.

Looking at the nearest rivals, the Ryzen 7 5700G is essentially tied with the Intel Core i9-9900K, showing a deltaPct of -0.2, meaning it is 0.2% slower on average. It is also 0.4% faster than the AMD Ryzen AI 7 445 and 0.4% slower than the Intel Core i5-14400T. This places the 5700G in a performance tier that is competitive with older high-end parts and newer mid-range parts, but it is not a champion. The single-thread performance is where gaming often relies, and the 3dmark_single_thread score of 899 and the Passmark single-thread score of 3283 indicate a capable, but not exceptional, core architecture.

In Roblox, the CPU's role is to handle game logic, physics, and draw calls. With 8 cores and 16 threads, the 5700G has ample parallel processing power, but the single-thread performance is more critical for a game that may not be perfectly multi-threaded. The 3dmark_2_threads score of 1758 and the 3dmark_4_threads score of 3389 show that scaling from 2 to 4 threads is nearly linear, which is good. However, the jump from 8 threads (5648) to 16 threads (6627) is only a 17% improvement, suggesting that Roblox is likely not utilizing all 16 threads effectively.

The data strongly suggests that the Ryzen 7 5700G is the limiting factor at 1080p. At 640 FPS on Low settings, the CPU is likely saturating its single-thread capacity. The fact that the FPS does not double when going from 4K to 1080p (194 to 515 FPS at High settings) is a classic sign of a CPU bottleneck. The GPU could theoretically produce more frames, but the CPU cannot issue the draw calls fast enough. For a game like Roblox, which has simple graphics but potentially complex user-generated content, the CPU's ability to handle many objects and scripts is crucial, and this is where the 5700G's Zen 3 architecture shows its age relative to newer parts.

How This Combo Ranks

In the grand scheme of all tested hardware combinations for Roblox, this pairing of the Ryzen 7 5700G and RTX 4080 SUPER ranks 323rd out of 3711 combos. This places it in the top 8.7% of all tested systems, which is a strong showing. The ranking indicates that while the CPU is a bottleneck at lower resolutions, the sheer power of the RTX 4080 SUPER ensures that the combo still outperforms the vast majority of systems.

This rank of 323 is notable because it demonstrates that the combination is not being held back as much as one might expect from the CPU's 79th percentile standing. The GPU's 86th percentile ranking among all GPUs is higher, and this helps pull the combo up. However, the rank also implies that there are 322 other combos that perform better in Roblox. Those combos likely feature newer CPUs with higher single-thread performance, such as Intel 13th or 14th gen parts or AMD's Ryzen 7000 series, which can feed the GPU more effectively at 1080p.

The data suggests that if you were to pair this same RTX 4080 SUPER with a higher-ranked CPU, the combo rank would improve significantly. The 5700G is not a bad processor by any means, but it is not the ideal partner for a GPU of this caliber in a CPU-sensitive game like Roblox. The rank of 323 out of 3711 confirms the GPU's raw power, but it also serves as a warning that the CPU is leaving performance on the table, particularly for players who prioritize high refresh rates at 1080p or 1440p.

Measured FPS Breakdown

The measured FPS data provides a comprehensive picture of performance across three resolutions and four quality settings. At 1920x1080, the combo delivers exceptional frame rates: 640 FPS on Low, 582 FPS on Medium, 515 FPS on High, and 417 FPS on Ultra. The Medium setting has a minimum FPS of 495, which is still above the refresh rate of most high-end monitors. This data shows that at 1080p, the system is entirely CPU-limited, as the GPU is capable of much higher output, but the CPU is capping the frame rate.

At 2560x1440, the frame rates remain very high: 427 FPS on Low, 388 FPS on Medium, 343 FPS on High, and 279 FPS on Ultra. The Medium setting shows a minimum of 330 FPS and a maximum of 447 FPS. This is still a GPU-limited scenario for the most part, but the CPU is beginning to show its limitations as the GPU has more work to do. The drop from 1080p to 1440p at High settings is 172 FPS, which is a significant reduction, but the absolute numbers are still high enough to drive any current monitor at its maximum refresh rate.

At 3840x2160, the frame rates are more moderate but still very playable: 241 FPS on Low, 220 FPS on Medium, 194 FPS on High, and 158 FPS on Ultra. The Medium setting has a minimum of 187 FPS and a maximum of 253 FPS. This is where the RTX 4080 SUPER is finally being utilized to its full potential. The scaling from Low to Ultra at 4K is 83 FPS, which is a 34% reduction, indicating that the GPU is now the primary bottleneck. The data shows that even at 4K Ultra, the combo maintains an average of 158 FPS, which is well above the 60 FPS target for most games.

The most interesting comparison is between 1080p Low and 4K Ultra. The difference is 482 FPS (640 to 158), which is a 75% reduction. This massive drop underscores the shift from a CPU-limited scenario to a GPU-limited one. At 1080p Low, the CPU is working as hard as it can, but at 4K Ultra, the GPU is the sole determinant of performance. The measured data is consistent and shows no anomalies, indicating a stable system with no thermal throttling or driver issues.

GPU Role

The NVIDIA GeForce RTX 4080 SUPER is a flagship GPU built on the Ada Lovelace architecture with a 5 nm process. It features 10240 shading units, 320 texture mapping units, and 112 raster output units. The GPU has 80 ray tracing cores and 320 tensor cores, and it is equipped with 16 GB of GDDR6X memory on a 256-bit bus, providing a bandwidth of 736.3 GB/s. The boost clock is rated at 2550 MHz, and the GPU has a TDP of 320 W.

The benchmark data for the RTX 4080 SUPER shows it is a top-tier performer. Its average benchmark score is 54209, placing it in the 86th percentile of all GPUs. It is nearly identical in performance to the RTX 4080, with a deltaPct of -0.1, meaning it is 0.1% slower. It is 1.1% slower than the AMD Radeon Pro W5700X and 2.7% slower than the AMD Radeon RX 6750 GRE 12 GB. These rivals are not direct competitors in terms of market position, but the data shows that the RTX 4080 SUPER is a very fast card that is only marginally outperformed by a few others.

In Roblox, the GPU's role is to render the scene and apply effects. The RTX 4080 SUPER is massively overqualified for this task, as evidenced by the 640 FPS at 1080p Low. The 16 GB of VRAM is more than sufficient for Roblox, which is not a VRAM-intensive game. The GPU's high texture rate of 816.0 GTexel/s and pixel rate of 285.6 GPixel/s are far beyond what Roblox requires, even at 4K Ultra.

The data shows that the RTX 4080 SUPER is only fully utilized at 4K. At 1080p, the GPU is likely sitting idle for most of the time, waiting for the CPU to send draw calls. At 4K, the GPU is able to stretch its legs, and the scaling from Low to Ultra at 4K (241 to 158 FPS) shows that the GPU is the limiting factor. The fact that the RTX 4080 SUPER is end-of-life and has a launch MSRP of 999 USD indicates that it was a high-end product, and its performance here is consistent with that positioning.

FAQ

Q: Is the AMD Ryzen 7 5700G a bottleneck for the RTX 4080 SUPER in Roblox?

A: Yes, the data indicates a CPU bottleneck at 1080p and 1440p. At 1080p High, the combo achieves 515 FPS, but at 4K High, it drops to 194 FPS. The CPU's 79th percentile ranking among all CPUs, combined with its single-thread score of 899 in 3dmark, suggests it cannot feed the GPU fast enough at lower resolutions.

Q: What is the best resolution to use with this combo for maximum performance?

A: The data shows that 1440p is the sweet spot. At 1440p High, the combo averages 343 FPS, which is very high, and the GPU is more utilized than at 1080p. At 4K, the average drops to 194 FPS, which is still playable but shows a significant performance cost. For a balance of high frame rates and GPU utilization, 1440p is recommended.

Q: How does this combo rank compared to other tested systems?

A: This combo ranks 323rd out of 3711 tested combinations for Roblox. This places it in the top 8.7% of all systems. The ranking is strong, but it is held back by the CPU's performance relative to the GPU.

Q: Does the RTX 4080 SUPER's 16 GB of VRAM matter for Roblox?

A: The 16 GB of VRAM is more than sufficient for Roblox, which is not a VRAM-intensive game. The data shows that even at 4K Ultra, the combo maintains 158 FPS, indicating that VRAM is not a limiting factor. The GPU's high bandwidth of 736.3 GB/s is also far beyond what Roblox requires.

Q: What do the minimum FPS numbers tell us about stability?

A: The only min FPS data is for Medium settings. At 1080p, the min is 495 FPS; at 1440p, it is 330 FPS; and at 4K, it is 187 FPS. These minimums are close to the averages, indicating stable frame pacing with no severe drops or stutters.

Q: Is the Ryzen 7 5700G's integrated graphics relevant when paired with a discrete GPU?

A: The Ryzen 7 5700G includes Radeon Vega 8 integrated graphics, but this is not used when the RTX 4080 SUPER is installed. The discrete GPU handles all rendering tasks, and the integrated graphics are irrelevant to the measured FPS data. The CPU's 8 cores and 16 threads are the relevant specs for game logic.