Roblox

# Roblox with AMD Ryzen 7 5700G + NVIDIA GeForce RTX 4070 — Benchmark Analysis

The AMD Ryzen 7 5700G paired with the NVIDIA GeForce RTX 4070 delivers remarkably high frame rates in Roblox, with the measured data showing average FPS figures that remain above 120 even at 4K Ultra settings. This combination sits at rank 459 out of 1800 tested combos in this game, placing it in the top quarter of all configurations. The data reveals a system that is heavily GPU-limited at lower resolutions but shifts toward a more balanced profile as resolution increases, though the absolute performance headroom is substantial across every tested setting.

Resolution Scaling

The measured FPS data shows a clear pattern of diminishing returns as resolution increases, which is typical for a game with Roblox's stylized graphics. At 1080p Low, the combo produces 502.4 FPS, which drops to 335.8 FPS at 1440p Low (a 33.2% reduction) and then to 190.9 FPS at 4K Low (a 43.1% reduction from 1440p). This scaling pattern suggests that at lower resolutions, the CPU becomes the limiting factor, as the RTX 4070 is capable of far higher frame rates than the Ryzen 7 5700G can feed.

The High settings curve tells a similar story: 401.8 FPS at 1080p, 269.5 FPS at 1440p, and 153.6 FPS at 4K. The percentage drops between resolutions are consistent across settings, indicating that the resolution scaling behavior is largely independent of the graphics preset chosen. However, the Ultra preset shows the steepest relative decline, falling from 324.3 FPS at 1080p to 218.8 FPS at 1440p and then to 124 FPS at 4K — a 61.8% total reduction from 1080p to 4K.

The fact that even 4K Ultra maintains 124 FPS average suggests that this game is not particularly demanding on the GPU. The RTX 4070, with its 12 GB of GDDR6X memory and 504.2 GB/s bandwidth, is clearly not being stressed to its limits. The data implies that the bottleneck at 1080p is the CPU's single-thread performance, while at 4K the GPU begins to take on a more significant role, though it still has considerable headroom.

CPU Role

The AMD Ryzen 7 5700G is an 8-core, 16-thread processor based on the Zen 3 architecture, with a base clock of 3.80 GHz and a boost clock of 4.60 GHz. Its benchmark scores show strong multi-threaded capability, with a Cinebench R23 multi-core score of 20755 and a single-core score of 2930. The PassMark single-thread score of 3283 and multi-thread score of 24419 further confirm its balanced performance profile.

In Roblox, the data suggests that the CPU's single-thread performance is the primary constraint at lower resolutions. The 1080p Low result of 502.4 FPS is likely near the ceiling of what this CPU can produce in this game, given that the RTX 4070 is capable of much higher frame rates in less CPU-bound scenarios. The 3DMark scores reinforce this: a single-thread score of 899 and a 2-thread score of 1758 indicate that the processor's per-core performance is solid but not exceptional.

The 5700G's 16 MB of L3 cache and 51.2 GB/s memory bandwidth appear sufficient for Roblox's demands, as the frame rates remain high across all settings. The processor's 65 W TDP and 7 nm process node make it an efficient choice, though its PCIe Gen 3 interface could theoretically limit GPU communication compared to newer platforms. The data does not show any obvious stutter or frame-time issues, but the rank of 459 out of 1800 combos suggests that many other CPU-GPU pairings achieve higher performance in this specific game.

Interestingly, the 5700G's nearest rivals in average benchmark score — the AMD Ryzen 7 6800U, Intel Xeon D-2752TER, Intel Core 5 210H, and AMD Ryzen 5 7640U — all score within 0.6% of the 5700G's average. This indicates that the CPU is performing at the expected level for its class, and any differences in Roblox frame rates are more likely due to the GPU pairing rather than CPU variance.

GPU Role

The NVIDIA GeForce RTX 4070 is built on the Ada Lovelace architecture with a 5 nm process node, featuring 5888 shading units and 12 GB of GDDR6X memory on a 192-bit bus. Its boost clock of 2475 MHz and memory clock of 1313 MHz (21 Gbps effective) contribute to a PassMark G3D score of 26927 and a 3DMark Steel Nomad DX12 score of 3854.

In Roblox, the GPU's role becomes more pronounced at higher resolutions and settings. The 4K Ultra result of 124 FPS, while still smooth, represents the greatest GPU load in the dataset. The RTX 4070's 158.4 GPixel/s pixel rate and 455.4 GTexel/s texture rate are more than adequate for this game's visual complexity, which is why the GPU does not become a severe bottleneck until the highest resolution and quality settings are combined.

The GPU's VRAM capacity of 12 GB is more than sufficient for Roblox, and the data does not indicate any memory-related performance drops. The FP32 performance of 29.15 TFLOPS provides substantial computational headroom, though Roblox's rendering pipeline likely does not fully utilize this capability. The RTX 4070's nearest rivals in benchmark scores include the AMD Radeon RX Vega 56 (-0.6%), NVIDIA GeForce MX570 A (-1.9%), and NVIDIA GeForce RTX 4080 Mobile (-2.2%), showing that the desktop RTX 4070 is performing near the top of its expected range.

The GPU's percentile rank of 81 among all GPUs, combined with the CPU's percentile rank of 83, suggests a well-matched pairing. However, the data shows that at 1080p, the system is achieving frame rates that far exceed typical display refresh rates, meaning the GPU is not being fully utilized in this scenario.

FAQ

Q: Why does the frame rate drop so much from 1080p to 4K?

A: The measured data shows average FPS falling from 502.4 at 1080p Low to 190.9 at 4K Low, a 62% reduction. This is primarily due to increased pixel count and shading work, though the RTX 4070 still maintains playable frame rates even at the highest resolution.

Q: Is this combination CPU-bound or GPU-bound in Roblox?

A: At 1080p, the system appears CPU-bound given that the Ryzen 7 5700G's single-thread performance (PassMark single-thread score of 3283) likely limits frame rates to around 500 FPS. At 4K Ultra, the GPU becomes more of a factor, with the RTX 4070 producing 124 FPS.

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

A: The combo ranks 459th out of 1800 tested combos in Roblox, placing it in the top 25.5% of all configurations tested for this game.

Q: What is the best resolution to use with this setup?

A: The data shows that 1440p Ultra (218.8 FPS) or 4K High (153.6 FPS) provide an excellent balance of visual quality and frame rate, while 1080p Ultra (324.3 FPS) exceeds the refresh rate of most monitors.

Q: Does the Ryzen 7 5700G's integrated graphics affect performance?

A: The Radeon Vega 8 iGPU is present but not used when the RTX 4070 is installed. The data does not show any performance impact from the iGPU's presence.

Q: Why is the 4K Ultra frame rate so much lower than other settings?

A: At 124 FPS, 4K Ultra represents the heaviest workload in the dataset, requiring the RTX 4070 to render over 8 million pixels with maximum quality settings. The frame rate drop from 4K High (153.6 FPS) to 4K Ultra (124 FPS) is 19.3%, reflecting the increased GPU load.

How This Combo Ranks

The AMD Ryzen 7 5700G + NVIDIA GeForce RTX 4070 combination achieves rank 459 out of 1800 tested combos in Roblox, placing it in the 74.5th percentile of all configurations. This is a strong result, though not exceptional given the hardware's capabilities. The CPU's percentile rank of 83 and GPU's percentile rank of 81 suggest that the individual components are well above average, but the combo's rank in this specific game indicates that other pairings with different CPU-GPU balances produce higher frame rates.

The rank suggests that while this system delivers excellent absolute performance — with all measured configurations exceeding 120 FPS average — it is not optimized for Roblox specifically. Many combos likely achieve higher frame rates by pairing the RTX 4070 with CPUs that have stronger single-thread performance, as Roblox appears to be particularly sensitive to per-core CPU performance at lower resolutions.

The delta between the combo's component percentile ranks (83 and 81) and its game-specific rank (74.5th percentile) suggests a slight mismatch in this game's workload. The data indicates that the CPU, while strong overall, may not have the single-thread headroom to fully unlock the RTX 4070 in Roblox's CPU-light but single-thread-sensitive rendering environment.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend heavily on the target display resolution. For 1080p displays, the Ultra preset at 324.3 FPS is the recommended choice, as it provides the highest visual quality while still delivering frame rates far beyond any current display's refresh rate. The drop from Low (502.4 FPS) to Ultra (324.3 FPS) is substantial but leaves ample performance headroom.

For 1440p displays, the Ultra preset at 218.8 FPS is also the best choice, as it maintains a very high frame rate while maximizing visual fidelity. The High preset at 269.5 FPS is a viable alternative for players who prioritize frame rate over visual quality, but the difference of 50.7 FPS is unlikely to be noticeable on most 1440p monitors.

At 4K, the recommendation shifts slightly. The High preset at 153.6 FPS provides a smoother experience than Ultra at 124 FPS, and the visual difference between High and Ultra in Roblox is likely minimal given the game's art style. The Medium preset at 173.2 FPS is also a strong option for 4K gamers who want to ensure consistent frame rates above 144 FPS. The Low preset at 190.9 FPS offers the highest frame rate at 4K but sacrifices too much visual quality for the modest 24.4% improvement over High.

Measured FPS Breakdown

At 1920x1080, the measured average FPS values are: Low 502.4, Medium 457.6, High 401.8, and Ultra 324.3. The progression shows a 35.4% decrease from Low to Ultra, with the largest single-step drop occurring between High and Ultra at 19.3%.

At 2560x1440, the results are: Low 335.8, Medium 307.5, High 269.5, and Ultra 218.8. The percentage reduction from Low to Ultra is 34.8%, closely mirroring the 1080p scaling. The gap between Medium and High is 12.4%, while the gap between High and Ultra is 18.8%, showing that Ultra imposes a disproportionately larger performance cost.

At 3840x2160, the values are: Low 190.9, Medium 173.2, High 153.6, and Ultra 124. The Low-to-Ultra reduction is 35.0%, consistent with the other resolutions. The absolute frame rates remain playable across all settings, with even the lowest result (4K Ultra at 124 FPS) exceeding the 120 FPS threshold for smooth gameplay.

Across all resolutions, the Low-to-Medium and Medium-to-High transitions each cost roughly 9-10% performance, while the High-to-Ultra transition costs approximately 19-20%. This consistent pattern indicates that the Ultra preset includes disproportionately expensive rendering features, while the lower tiers scale more predictably.