Roblox

The AMD Ryzen 9 7900X paired with the NVIDIA GeForce RTX 3070 delivers exceptionally high frame rates in Roblox, a sandbox title from 2006-08-31. Benchmark data shows this combination achieving over 100 FPS at 4K Ultra and exceeding 400 FPS at 1080p Low, placing it in the 840th position out of 1800 tested combos for this game. The following analysis breaks down the measured performance, component roles, and how this pairing ranks against other tested configurations.

FAQ

Q: What is the highest average FPS recorded for this combo in Roblox?

A: The highest measured average FPS is 416.9, achieved at 1920x1080 resolution with Low settings.

Q: How much faster is 1080p Low compared to 4K Ultra?

A: At 1080p Low, the average FPS is 416.9, while at 4K Ultra it drops to 103.2. This represents a performance difference where 1080p Low delivers roughly four times the frame rate of 4K Ultra.

Q: What is the combo's rank among all tested Roblox configurations?

A: This pairing ranks 840th out of 1800 total tested combos for Roblox, placing it in the upper half of all configurations.

Q: Does the RTX 3070 have enough VRAM for Roblox at high settings?

A: The RTX 3070 features 8 GB of GDDR6 memory with a 256-bit bus and 448.0 GB/s bandwidth. The measured FPS data shows no performance collapse at higher settings, indicating this memory configuration is sufficient for Roblox's demands.

Q: How does the CPU's single-thread performance compare to its multi-thread performance?

A: The Ryzen 9 7900X scores 1093 in 3dmark_single_thread and 12536 in 3dmark_max_threads. The single-thread score is relatively high, which is relevant for game performance, while the multi-thread score shows the 12-core, 24-thread processor's capacity.

Q: What is the FPS difference between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings produce 274.6 FPS average, while Ultra settings produce 181.5 FPS average. This is a gap of approximately 93 FPS between the two extremes.

GPU Role

The NVIDIA GeForce RTX 3070 is built on the Ampere architecture with a GA104 chip manufactured on an 8 nm process by Samsung. It contains 5888 shading units, 184 texture mapping units, and 96 raster output processors. The GPU operates at a base clock of 1500 MHz with a boost clock of 1725 MHz, and its memory runs at 1750 MHz (14 Gbps effective).

The 8 GB of GDDR6 memory on a 256-bit bus provides 448.0 GB/s of bandwidth. This memory configuration appears well-suited to Roblox, as the measured FPS data shows smooth scaling across settings. The GPU's pixel rate of 165.6 GPixel/s and texture rate of 317.4 GTexel/s contribute to its ability to handle the game's rendering workload.

In Roblox specifically, the RTX 3070's FP32 performance of 20.31 TFLOPS is more than adequate for the game's engine. The data shows the GPU is not a bottleneck at lower resolutions, where CPU limits likely dominate. At 4K Ultra, the FPS drops to 103.2, which still remains comfortably above typical display refresh rates. The GPU's DirectX 12 Ultimate support and Vulkan 1.4 compatibility ensure it can handle Roblox's rendering requirements efficiently.

Resolution Scaling

The measured FPS data reveals a consistent pattern of performance scaling across resolutions. Moving from 1920x1080 to 2560x1440 reduces frame rates by roughly 30-35% depending on settings. For example, at High settings, FPS drops from 331.3 at 1080p to 223.7 at 1440p, a reduction of approximately 32%.

The transition from 1440p to 4K shows a more dramatic performance drop. At High settings, FPS falls from 223.7 at 1440p to 123.4 at 4K, representing a 45% reduction. This steeper decline at 4K indicates the GPU becomes more of a limiting factor as pixel count increases, though the RTX 3070 still maintains playable frame rates.

The scaling pattern suggests that at 1080p, the CPU is likely the primary limiting component, as the Ryzen 9 7900X's performance becomes the ceiling. At 4K, the GPU's workload increases significantly, and the FPS drops reflect the RTX 3070's rendering limitations at that resolution. The difference between Low and Ultra settings also widens at higher resolutions, with a 313.7 FPS gap at 1080p (416.9 vs 269.7) compared to a 52.7 FPS gap at 4K (155.9 vs 103.2).

Measured FPS Breakdown

At 1920x1080, the combo achieves its highest frame rates. Low settings produce 416.9 FPS average, while Medium settings yield 378.5 FPS, High settings deliver 331.3 FPS, and Ultra settings maintain 269.7 FPS. The spread between Low and Ultra is substantial, indicating that Roblox's settings significantly impact performance at this resolution.

At 2560x1440, performance remains high but shows more differentiation. Low settings produce 274.6 FPS, Medium delivers 249.3 FPS, High achieves 223.7 FPS, and Ultra drops to 181.5 FPS. All settings remain above 180 FPS, making this resolution well-suited for high-refresh-rate displays.

At 3840x2160, the frame rates become more moderate. Low settings deliver 155.9 FPS, Medium produces 141.6 FPS, High achieves 123.4 FPS, and Ultra drops to 103.2 FPS. Even at 4K Ultra, the performance remains above 100 FPS, demonstrating the capability of this combination. The consistent pattern across resolutions shows that Roblox scales predictably with both resolution and settings, with no unexpected performance anomalies in the data.

How This Combo Ranks

This configuration ranks 840th out of 1800 tested combos for Roblox, placing it in the 46.7th percentile of all tested systems. This mid-pack ranking is notable given the high absolute FPS numbers, suggesting that many other hardware combinations achieve even higher frame rates in this game.

The ranking reflects the balance between CPU and GPU capabilities. The Ryzen 9 7900X's strong single-thread performance (1093 in 3dmark_single_thread) helps in Roblox, which relies heavily on CPU performance at lower resolutions. However, the RTX 3070's mid-tier positioning (72nd percentile among all GPUs) may limit performance relative to systems with more powerful graphics cards.

The CPU's nearest rivals show very close average benchmark scores. The Ryzen 9 7900X scores 50556 on average, while the Intel Core Ultra 5 235 scores 50598 (0.1% higher), the AMD Ryzen 9 5900XT scores 50738 (0.4% higher), and the Intel Core i9-13980HX scores 50944 (0.8% higher). These small differences suggest the CPU is not a differentiating factor in Roblox performance.

CPU Role

The AMD Ryzen 9 7900X is a 12-core, 24-thread processor from the 7000 series, built on Zen 4 architecture (codename Raphael) using TSMC's 5 nm process. It has a base clock of 4.70 GHz and a boost clock of 5.60 GHz, with a TDP of 170 W. The CPU supports DDR5 memory in a dual-channel configuration with 83.2 GB/s bandwidth.

In Roblox, the CPU's single-thread performance is particularly important. The processor scores 1093 in 3dmark_single_thread and 4238 in passmark_single_thread, indicating strong per-core performance. This is evident in the measured FPS data, where the combo achieves over 400 FPS at 1080p Low, a scenario where CPU performance typically dominates.

The 64 MB of shared L3 cache and 1 MB L2 cache per core provide ample cache for game data. The processor's 3dmark scores show scaling from 1093 (single thread) to 2137 (2 threads), 4151 (4 threads), 7798 (8 threads), and 12536 (max threads), demonstrating efficient multi-threading. In Roblox, where thread utilization may be limited, the high single-thread performance is more relevant than the multi-thread capabilities.

The CPU's 93rd percentile ranking among all CPUs indicates it is a high-performing processor, and its benchmark scores (43695 in cinebench_r23_multicore, 6168 in cinebench_r23_singlecore) confirm its capability. However, in Roblox specifically, the data suggests the GPU becomes the limiting factor at higher resolutions, as the FPS drops more steeply when moving from 1440p to 4K compared to the 1080p to 1440p transition.