Roblox

# Roblox with Intel Core Ultra 5 245 + NVIDIA GeForce RTX 3080

Roblox, a sandbox game released in 2006, presents an unusual benchmarking scenario because its lightweight engine often shifts the bottleneck toward the CPU rather than the GPU. This particular combination pairs Intel's Core Ultra 5 245 desktop processor with NVIDIA's GeForce RTX 3080, a pairing that yields some of the highest frame rates recorded on this platform. The data shows a system capable of exceeding 480 FPS at 1080p on Low settings, yet the scaling patterns across resolutions reveal interesting nuances about where the performance ceiling actually lies. With the combo ranking 822nd out of 3,010 tested combinations, this setup sits comfortably in the upper quartile, but the measured results indicate that the RTX 3080's substantial graphics horsepower is frequently underutilized in this title.

FAQ

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

A: The maximum average FPS is 482, achieved at 1920x1080 resolution with Low settings. The same resolution at Medium settings produces 438 FPS, while High settings yield 387 FPS and Ultra drops to 314 FPS.

Q: How does this combo rank among all tested CPU-GPU pairings in Roblox?

A: The Intel Core Ultra 5 245 + RTX 3080 combination ranks 822nd out of 3,010 total tested combos, placing it in the top 27% of all systems evaluated for this game.

Q: What is the RTX 3080's memory configuration and how does it affect Roblox performance?

A: The RTX 3080 features 10 GB of GDDR6X memory on a 320-bit bus with 760.3 GB/s bandwidth. For Roblox, which is not particularly memory-hungry, this capacity proves more than sufficient, as evidenced by the high frame rates even at 4K Ultra settings where the game still averages 119 FPS.

Q: What is the thermal design power of the CPU in this combo?

A: The Intel Core Ultra 5 245 has a TDP of 65 watts, using a 3 nm process from TSMC with 17,800 million transistors. This modest power envelope contributes to the CPU's ability to maintain high clock speeds during extended gaming sessions.

Q: Does the CPU or GPU limit performance more in Roblox at 1080p?

A: At 1080p, the data strongly suggests CPU limitation. The RTX 3080 is capable of far higher frame rates than the 482 FPS observed at Low settings, and the relatively small FPS gains from 1080p to 1440p (e.g., 387 to 259 at High) indicate the processor is reaching its rendering ceiling.

Q: What are the key benchmark scores for this CPU and GPU combination?

A: The CPU achieves a Cinebench R23 multicore score of 32,924 and a single-core score of 4,648, with a Passmark single-thread score of 4,394. The GPU posts a Passmark G3D score of 25,086 and a 3DMark Steel Nomad DX12 score of 4,407.

GPU Role

The NVIDIA GeForce RTX 3080 brings substantial specifications to this pairing, built on the Ampere architecture with a GA102 chip fabricated on Samsung's 8 nm process. The GPU contains 28,300 million transistors on a 628 mm² die, with 8,704 shading units, 272 texture mapping units, and 96 render output units. Its boost clock reaches 1710 MHz, backed by 68 RT cores and 272 tensor cores, producing 29.77 TFLOPS of FP32 performance. The memory subsystem consists of 10 GB of GDDR6X running at 19 Gbps effective speed across a 320-bit interface, delivering 760.3 GB/s of bandwidth.

In Roblox, however, these specifications are rarely pushed to their limits. The game's visual style, while capable of sophisticated lighting and physics through its sandbox mechanics, does not demand the kind of raw polygon throughput that stresses contemporary GPUs. The measured FPS data confirms this observation: at 4K Ultra settings, the RTX 3080 still manages 119 FPS, suggesting the GPU has ample headroom. The pixel rate of 164.2 GPixel/s and texture rate of 465.1 GTexel/s are far beyond what Roblox's rendering pipeline requires at typical draw distances.

The GPU's 68 RT cores and support for DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 ensure future-proof compatibility, but Roblox's current implementation appears to rely more on traditional rasterization. The RTX 3080's Passmark DirectX 11 score of 207 and DirectX 12 score of 100 indicate strong API performance, yet the game's engine may not fully exploit these capabilities. The data suggests that while the GPU is technically overqualified for Roblox, its high frame buffer bandwidth and low latency help maintain consistent frame pacing, particularly at higher resolutions where memory bandwidth becomes more critical.

How This Combo Ranks

The combination of Intel Core Ultra 5 245 and RTX 3080 achieves a rank of 822 out of 3,010 tested combos in Roblox, placing it in the 72.7th percentile of all systems. This position reflects a system that is decidedly above average but not among the absolute elite for this particular title. The ranking is somewhat surprising given the hardware's aggregate benchmark scores: the CPU sits in the 90th percentile among all processors, and the GPU in the 68th percentile among all GPUs.

The CPU's individual performance metrics suggest why this combo ranks where it does. The Core Ultra 5 245's nearest rival, the AMD Ryzen 7 PRO 5755G, scores 49,196 in average benchmarks, just 0.4% higher. The AMD Ryzen 9 7900 also edges ahead by 0.5%, while the Intel Xeon Gold 5318H trails by 0.6% and the Core i5-14600K by 0.8%. These tight margins indicate the CPU is competitive with mainstream alternatives, but none of these processors are top-tier for gaming-specific workloads.

For the GPU, the RTX 3080's nearest rivals in average benchmark scores include the NVIDIA P106-100 (0.3% higher), AMD Radeon Pro Vega 16 (0.3% higher), AMD Radeon RX 6600M (0.4% higher), and AMD Radeon R9 M290X (0.4% higher). These comparisons are somewhat misleading, as they represent aggregate benchmark scores rather than gaming-specific performance. The RTX 3080's Passmark G3D score of 25,086 places it well above the median GPU, but Roblox's particular workload characteristics mean raw compute power matters less than single-thread CPU performance and memory latency.

The 822nd rank suggests that many combinations with newer or higher-clocked CPUs achieve better Roblox performance, likely because the game's physics and scripting engine respond more to CPU clock speed and IPC than to GPU specifications. The Core Ultra 5 245's boost clock of 5.10 GHz is competitive, but its 14 cores and 14 threads (with no hyper-threading) may limit performance in scenarios where Roblox spawns many concurrent processes.

Measured FPS Breakdown

At 1920x1080, the measured FPS ranges from 314 FPS at Ultra settings to 482 FPS at Low settings. The Medium preset delivers 438 FPS with a minimum of 373 and maximum of 504, while High settings produce 387 FPS. These numbers reveal that even at the most demanding 1080p preset, the system maintains frame rates well above typical high-refresh-rate monitor capabilities. The gap between Low and Ultra settings (168 FPS difference) indicates that visual quality settings have a meaningful impact, but the absolute values remain exceptionally high.

Moving to 2560x1440, the FPS drops to 210 at Ultra, 259 at High, 293 at Medium, and 321 at Low. The Medium preset shows a minimum of 249 and maximum of 336 FPS. The percentage drop from 1080p to 1440p is consistent across settings: Low decreases by 33.4% (482 to 321), Medium by 33.1% (438 to 293), High by 33.1% (387 to 259), and Ultra by 33.1% (314 to 210). This uniform scaling suggests the GPU is beginning to take on more responsibility, but the frame rates remain high enough that gameplay is smooth on any modern display.

At 3840x2160, the FPS drops further: 119 at Ultra, 146 at High, 165 at Medium, and 182 at Low. The Medium preset's minimum FPS is 141 with a maximum of 190. From 1440p to 4K, the reductions are 43.3% for Low (321 to 182), 43.7% for Medium (293 to 165), 43.6% for High (259 to 146), and 43.3% for Ultra (210 to 119). These larger percentage drops at 4K indicate the GPU is now the primary bottleneck, as the RTX 3080's 10 GB memory and 760.3 GB/s bandwidth become more strained by higher pixel counts.

Resolution Scaling

The transition from 1080p to 1440p produces nearly identical percentage drops across all quality settings, hovering around 33%. This uniformity points to a scaling behavior where the limiting factor changes gradually rather than abruptly. At 1080p, the CPU's ability to feed draw calls and process game logic is the bottleneck, as evidenced by the high frame rates that approach what the processor can sustain. The RTX 3080, with its 29.77 TFLOPS of compute power, is effectively idle waiting for the CPU to supply work.

The shift to 1440p increases the pixel count by 78%, yet FPS drops by only 33%, which suggests the GPU is still far from saturated. If the GPU were the sole bottleneck, the frame rate would drop proportionally to the pixel increase (theoretically causing a 44% reduction). The measured 33% drop indicates a mixed bottleneck where both CPU and GPU contribute to the performance ceiling.

At 4K, the pixel count doubles again from 1440p, and the FPS drops by approximately 43-44% across all settings. This scaling is closer to what pure GPU limitation would predict, suggesting that at 4K, the RTX 3080 becomes the definitive bottleneck. The fact that even at 4K Ultra the system maintains 119 FPS average demonstrates that Roblox's rendering demands are modest compared to modern AAA titles. The data implies that for players using 1080p or 1440p displays, the CPU limits performance, while 4K users will be constrained by the GPU's fill rate and memory bandwidth.

Settings Recommendations

For players using a 1080p display, the data suggests that even Ultra settings provide ample performance at 314 FPS average, which exceeds the refresh rate of virtually all gaming monitors. The Medium preset offers the best balance of visual quality and performance headroom, with 438 FPS average and a minimum of 373 FPS that ensures no noticeable stuttering. Given that the difference between Medium and Ultra is 124 FPS (28.3% reduction), and the visual differences in Roblox between these presets are typically modest, Medium at 1080p represents the optimal choice for maintaining maximum frame rates while preserving visual fidelity.

At 1440p, the Medium preset again provides the best measured experience, with 293 FPS average and a minimum of 249 FPS. This configuration ensures that even in scenes with multiple players or complex physics interactions, the frame rate remains above 240 Hz, which matches the refresh rate of high-end gaming monitors. The High preset at 259 FPS is also viable, but the 11.6% reduction from Medium may not be justified by the visual improvements in Roblox's blocky aesthetic.

For 4K displays, the Medium preset delivers 165 FPS average with a minimum of 141 FPS, which remains above the 120 Hz threshold common in 4K gaming monitors. The High preset at 146 FPS is also acceptable, but Ultra at 119 FPS dips below the 120 Hz refresh rate on some displays. Given that 4K Ultra offers only marginal visual improvements in Roblox, Medium is the recommended setting for 4K users who prioritize smoothness, while Ultra remains playable for those who value maximum visual detail over absolute frame rate.

CPU Role

The Intel Core Ultra 5 245 serves as the central processing unit in this combo, featuring 14 cores and 14 threads based on the Arrow Lake architecture. Its base clock of 3.50 GHz boosts to 5.10 GHz, and the processor includes 24 MB of shared L3 cache along with 3 MB of L2 cache per core. The CPU supports DDR5 memory on a dual-channel bus with 102.4 GB/s bandwidth, and includes integrated Arc Xe-LPG Graphics 64EU, though the dedicated RTX 3080 handles all rendering duties.

In Roblox, the CPU's role is amplified because the game's engine relies heavily on single-threaded performance for its scripting system and physics calculations. The Core Ultra 5 245's single-core Cinebench R23 score of 4,648 and Passmark single-thread score of 4,394 indicate strong per-core performance. This explains why the system achieves 482 FPS at 1080p Low settings — the CPU can process the game's logic quickly enough to feed the GPU at very high rates.

The lack of simultaneous multithreading (14 threads for 14 cores) is notable. Many competing processors offer 20 threads or more, but Roblox's workload appears to benefit more from raw clock speed than from additional threads. The CPU's boost clock of 5.10 GHz is among the highest available, which likely contributes to the strong frame rates observed.

The CPU's benchmark results place it at the 90th percentile among all processors, with an average benchmark score of 48,995. Its nearest rival, the AMD Ryzen 7 PRO 5755G, scores nearly identically, while the Ryzen 9 7900 and Core i5-14600K are also within 1% — indicating that no mainstream processor has a significant advantage in aggregate compute performance. However, for gaming tasks like Roblox that favor high IPC and clock speed over core count, the Core Ultra 5 245's 5.10 GHz boost clock gives it a meaningful edge in frame generation, which the measured FPS data confirms. The CPU's 65 W TDP also means it can sustain these clocks for extended periods without thermal throttling, ensuring consistent frame delivery during long Roblox sessions.