Being turn-based, extreme FPS is less critical here. The game features high-fidelity models and uses considerable storage for audio and cutscenes. 8GB of RAM is recommended for smooth operation.
This game has a built-in FPS cap of 60 FPS
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, frame rates range from 39 to 64 FPS depending on quality settings. At 1440p, frame rates range from 38 to 66 FPS. At 4K, frame rates range from 31 to 53 FPS.
The GeForce RTX 4090 is 279% above the recommended GPU (GeForce GTX 1060) for Honkai: Star Rail. The EPYC 7643P is 259% above the recommended CPU (Core i7).
The EPYC 7643P sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GeForce RTX 4090 still has headroom.
Approximated average price on current market:
Combo price: $4371. At 1080p Ultra, this combo delivers 39 FPS, equivalent to 0.01 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.015 fps/$ | 0.014 fps/$ | 0.014 fps/$ | 0.009 fps/$ |
| 1440p | 0.015 fps/$ | 0.014 fps/$ | 0.013 fps/$ | 0.009 fps/$ |
| 4k | 0.012 fps/$ | 0.011 fps/$ | 0.010 fps/$ | 0.007 fps/$ |
* Table values represent FPS per Dollar (higher is better)
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 4k ultra, the EPYC 7643P sets the ceiling at about 31 FPS, while the GeForce RTX 4090 could reach 81 FPS. In this scenario, the CPU limits the GPU potential by 62% (FPS gap: 50 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.
Your EPYC 7643P is the limiting side in the heaviest mismatch. This means part of the GeForce RTX 4090 rendering potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 42% | CPU Limits GPU 44% | CPU Limits GPU 37% | CPU Limits GPU 60% |
| 1440p (2K QHD) | CPU Limits GPU 39% | CPU Limits GPU 41% | CPU Limits GPU 36% | CPU Limits GPU 58% |
| 4K (Ultra HD) | CPU Limits GPU 57% | CPU Limits GPU 57% | CPU Limits GPU 51% | CPU Limits GPU 62% |
We estimate the maximum FPS the processor can sustain and the maximum FPS the graphics card can sustain in each setting, then compare those limits directly.
Limit Factor formula: (stronger - weaker) / stronger. Example: if CPU ceiling is 200 FPS and GPU ceiling is 140 FPS, then GPU limits CPU by 30%.
CPU Limits GPU means the processor ceiling is lower. GPU Limits CPU means the graphics ceiling is lower. Balanced means the FPS ceilings are close enough that the gap is negligible.
A component can still be the FPS limiter without reaching 100% utilization. The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU7% - 23% <> GPU32% - 49% <> | CPU10% - 25% <> GPU32% - 50% <> | CPU10% - 25% <> GPU32% - 50% <> | CPU11% - 25% <> GPU29% - 50% <> |
| 1440p (2K QHD) | CPU7% - 23% <> GPU35% - 50% <> | CPU11% - 25% <> GPU35% - 50% <> | CPU11% - 25% <> GPU35% - 50% <> | CPU12% - 25% <> GPU32% - 50% <> |
| 4K (Ultra HD) | CPU7% - 23% <> GPU46% - 55% <> | CPU10% - 25% <> GPU46% - 55% <> | CPU10% - 25% <> GPU46% - 55% <> | CPU12% - 25% <> GPU45% - 55% <> |
The EPYC 7643P + GeForce RTX 4090 pairing runs this title with CPU utilization between 7% and 25% and GPU utilization between 29% and 55%. EPYC 7643P keeps significant headroom across presets, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 41% at 1080p to 50% at 4K, while CPU averages move from 17% to 17%.
Neither component is close to saturation: CPU tops out at 25% and GPU at 55%. This pattern suggests possible engine-side limits, an FPS cap, or workload constraints unrelated to raw hardware throughput. It also shows why low utilization does not automatically mean there is no FPS limiter.
At 1080p, averages sit around CPU 17% and GPU 41%. At 1440p, that shifts to CPU 17% and GPU 42%, and at 4K it reaches CPU 17% and GPU 50%. This shows that workload scaling is present on both components, with stronger pressure on the GPU.
4K (Ultra HD) Low is the most balanced preset based on this dataset. It runs around CPU 15% (7-23%) and GPU 50% (46-55%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while EPYC 7643P remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the EPYC 7643P and GeForce RTX 4090 remain reasonably matched for this title.
Understanding Hardware Utilization: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. They describe hardware load, but they do not directly tell you which component sets the FPS ceiling.
Important: a CPU or GPU can still be the FPS limiter without reaching 100% utilization. Two processors can both show 40% usage and still deliver very different frame rates, depending on per-core speed, cache, engine threading, driver overhead, and frame preparation efficiency.
Data generated by our Machine Learning engine trained on real-world benchmarks. Shows the approximate average utilization at each setting.
See how your processor and graphics card compare against the game official minimum and recommended system specs. The placement of your hardware is calculated using relative synthetic performance scores to help you gauge overall playability.
Your CPU is 259% above and your GPU is 279% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+259%vsrecommended
+279%vsrecommended
+485%vsminimum
+2070%vsminimum
The EPYC 7643P and GeForce RTX 4090 will struggle to run Honkai: Star Rail at smooth framerates. At 1080p Ultra, you can expect around 39 FPS which is classified as "playable". Consider lowering settings or upgrading your hardware.
This CPU + GPU combo costs approximately $4371 ($2722 CPU (Rank #312 Value) + $1649 GPU (Rank #77 Value)). Your EPYC 7643P provides phenomenal top-tier performance but at a premium enthusiast price. Since you are essentially at the ceiling of current hardware capabilities, there are no meaningful performance upgrades available. However, if you wanted a more cost-effective build that still delivers a great experience, you could theoretically step down to a high-end processor with a significantly better value rating. For example, the EPYC 9455P is a great upgrade option for around $4819 (Rank #344 for value).
Your EPYC 7643P is already an incredibly powerful processor. While it's technically the first component to hit its limit (which is completely normal in state-of-the-art builds), there is no meaningful upgrade path that would drastically improve your Honkai: Star Rail performance right now. CPU fully utilized at: 1080p low, 1080p medium, 1080p high, 1080p ultra, 1440p low, 1440p medium, 1440p high, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra.
Honkai: Star Rail does not currently support Frame Generation technologies like DLSS 3 or FSR 3. Your performance is based entirely on native rendering. If the game adds support in a future update, newer GPUs will benefit the most.
Honkai: Star Rail requires at minimum a Core i3 (CPU) and GeForce GTX 650 (GPU) with 6 GB RAM and 20 GB storage. For the recommended experience, you need a Core i7 and GeForce GTX 1060 with 8 GB RAM. Your EPYC 7643P and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These Honkai: Star Rail FPS results are not arbitrary numbers. They come from calculations informed by thousands of real gaming benchmarks, and the typical accuracy range is around 10% to 15%. That makes them far more useful than generic FPS calculators that simply invent values without a benchmark foundation. Actual in-game performance can still vary with drivers, updates, RAM configuration, cooling, and the exact scene being rendered.
Performance estimates are based on synthetic benchmarks and hardware capabilities.
Results may vary based on drivers, OS, and background processes.
