CPU bottleneck check, compatible CPUs, and AI models it can run
UHD Graphics 620 / Intel made / Integrated / Released 2017 Also known as: UHDGraphics620
UHD Graphics 620 (Intel, released in 2017, also listed as UHDGraphics620) is a graphics card with a performance score of 870 and Shared of VRAM. If CPU compatibility and performance balance are poor, a CPU bottleneck occurs, preventing UHD Graphics 620 from reaching its full potential. In our estimate, the CPUs that pair best with UHD Graphics 620 are Intel: Atom x7-Z8750 (estimated bottleneck: about 21%), and AMD: Ryzen 5 8640HS (about 47%). Below are the top 10 compatible CPUs, CPUs to avoid, and generative AI models supported by this amount of VRAM.
CPUs are ordered by proximity to the ideal CPU:GPU ratio of 0.9:1. A lower bottleneck percentage means more of the GPU’s performance can be used.
The Bottleneck Checker opens with UHD Graphics 620 already selected.
UHD Graphics 620 (UHDGraphics620) has a performance score of 870 points. Using the same CPU:GPU ≈ 0.9:1 standard as the checker, compatibility by CPU score is shown below.
| Example CPUs to Pair | Rating | What It Means |
|---|---|---|
| — | Great Match: 10% or Less | Optimal balance. Nearly all of UHD Graphics 620 performance can be used |
| — | Acceptable: 10–25% | Practical with no major issue. Consider a future upgrade if targeting high fps. |
| — | CPU Too Weak: Over 25% | A clear CPU bottleneck. Much of the GPU performance is wasted |
| Atom x7-Z8750、Celeron N4100、Celeron N5105 | CPU Overkill | Likely overkill for gaming |
Note: Perceived results vary by resolution and game (GPU matters more at 4K, while CPU matters more at high-fps Full HD). For an exact estimate, use the Bottleneck Checker.
Runs Comfortably: Meets recommended VRAM / Barely Runs: Meets minimum VRAM (lower quality or quantization may be needed)
No major AI model in the data can run on this GPU’s 0GB of VRAM. A very large server-grade model would be required.
Try teaching the AI “how to choose a CPU for UHD Graphics 620.”
Putting your reasoning into words as if you were teaching someone sharpens your judgment when choosing parts. Start free, right here.
SciCirc — A free learning path for math, science, and computing through teaching AI →
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→ Compare Other Models / → Check Whether an Upgrade Is Worthwhile
In our estimate, the best-balanced options are Atom x7-Z8750 for Intel (estimated bottleneck: about 21%) and Ryzen 5 8640HS for AMD (about 47%). A CPU-to-GPU performance ratio near 0.9:1 tends to use both parts effectively. See the top 10 compatible CPUs in the table on this page.
Almost no desktop CPU is slow enough to waste much of the UHD Graphics 620 performance. On the other hand, CPUs such as Atom x7-Z8750、Celeron N4100、Celeron N5105 are likely overkill for gaming.
UHD Graphics 620 has Shared of VRAM. Its VRAM is somewhat limited for comfortably running major generative AI models, so lightweight or quantized models are the main options.
UHD Graphics 620 is an integrated GPU, so standalone power draw (TDP) is not published. Its consumption is included in the CPU’s total TDP.
Its performance score is 870 points. CPU balance matters for gaming, while VRAM (Shared) matters for generative AI. Use the top 10 CPU list and AI model list above to check your use case.
