Legion 5i Gen 10 15-inch for Valorant: Thermals Checked

The Lenovo Legion 5i Gen 10 15-inch (Intel) is a sensible laptop for long Valorant sessions. Valorant is a light, CPU-leaning esports title, so the heat reviewers report from this chassis comes from heavy AAA and synthetic loads, not from hours of Valorant. Thermals are worth checking, but they are not a reason to avoid it. The things that actually go wrong are the configuration you buy and the power mode you leave it in.

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What reviewers reported about heat

No lab we could find has published a full thermal teardown of the exact 15-inch Gen 10 RTX 5060 configuration, so treat the numbers below as reported, not verified here.

• A review summary of PC Gamer’s test of a Gen 10 RTX 5060 unit reports a peak CPU temperature of 99°C under a full load test, and gaming averages of roughly 81°C on the GPU and 76°C on the CPU, with the laptop described as loud under load. That is a secondary summary, so confirm it against the original review before relying on it.
• A separate summary says that review unit shipped with single-channel memory. That is a configuration problem rather than a cooling one, and it is the first thing to check on any listing.
• Other coverage describes the 15-inch chassis as having stronger cooling than the 14-inch Legion models, with the RTX 5060 able to draw upwards of 100W.
• TechPowerUp’s Legion 5i 15IRX10 review and Notebookcheck’s page for the Legion 5 15IRX10 with i7-14700HX and RTX 5060 are the places to read the measured results for this family. The Notebookcheck page aggregates scores from several outlets.

Peak CPU temperatures near 99°C on a 14700HX-class HX chip under a stress load are common for thin-ish gaming laptops. They are not a defect on their own. Valorant sits far below that load.

Valorant is the easy case

Valorant at competitive settings on an RTX 5060-class GPU runs far above 240 fps and leaves the GPU well short of its power limit. In practice you can cap the frame rate to your panel’s refresh rate and the laptop will run quieter and cooler than any figure above. A cap also removes the fan ramp that makes long sessions annoying.

Practical settings for long sessions:

• Use Lenovo’s Balanced power mode (Fn+Q cycles Quiet, Balanced and Performance) for Valorant. Performance mode adds noise for frames you do not need.
• Cap fps in Valorant’s video settings, or via the NVIDIA app, to your refresh rate.
• Keep the vents clear. Rear and side exhaust is blocked by soft surfaces.
• Run it on mains power. Gaming on battery limits the GPU.

Undervolting: do not count on it

Undervolting is the claim that worries many buyers. Intel mitigated the Plundervolt vulnerability by letting vendors lock voltage control, and many gaming laptop BIOSes ship with the undervolt option disabled. Whether a particular Legion 5i Gen 10 BIOS allows it varies by CPU generation and BIOS version, and the sources above do not settle it. Treat undervolting as a bonus that may not exist, not a feature you are buying. If you rely on it, check owner reports for your exact BIOS first. Power-mode tuning and an fps cap give most of the benefit with no risk.

Bugs owners worry about

The recurring complaints for this class of laptop are fan noise under load, a BIOS or Vantage update that changes performance mode behaviour, and configuration surprises such as a single memory stick. The memory one is preventable: confirm the listing shows two modules, or plan to add a second matching DDR5 SODIMM. Nothing we found shows a design flaw that makes the chassis unsuitable for esports play. Anything beyond that, such as a unit that throttles at idle, is a warranty claim, not something to fix yourself.

How it compares with alternatives

Who should look elsewhere

All four are fine for Valorant, and nothing here deserves a skip. Choose the Legion Pro 5i if you also play demanding AAA titles and want lower temperatures, since the 64°C figure comes from a different, larger chassis and does not apply to the Legion 5i. Choose the LOQ only if budget is the deciding factor and you accept a more basic chassis. Choose the TUF if you prefer the ASUS keyboard and a 16-inch screen.

The Legion 5i Gen 10 15-inch is the pick for a reader who wants one laptop for Valorant now and heavier games later.