HardwareProcessorsIntel found a bug in its high-end CPU microcode is ‘potentially contributing to instability’ though ‘is not the root cause’ of those long-reported game crashesWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
HardwareProcessorsIntel found a bug in its high-end CPU microcode is ‘potentially contributing to instability’ though ‘is not the root cause’ of those long-reported game crashesWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
(Image credit: Future)
It’s been months since the first reports ofIntel’s Core i9 processors being unstablein Unreal Engine games, but a small step toward a solution has been made, with the discovery in the code that controls how the boost clock is managed. Gamers hoping for a total fix will need to wait, though, as Intel says that the bug isn’t the root cause of the CPU instability.
Some of the wording in the document suggested that the bug was responsible for the spate of crashes that many PC gamers with 13th and 14th-Gen Core i9 processors were experiencing, but Intel toldTom’s Hardwarethat “while this issue [the eTVB bug] is potentially contributing to instability, it is not the root cause.”
That makes sense because some owners of Core i7 models have also been experiencing the stability issue, and those models don’t have the eTVB feature.
So far, Intel has been recommending that its motherboard partners offer a so-calledIntel Baseline Profilein the BIOS/UEFI, which is supposed to set power and current limits to those specified for the CPU installed. For example, aCore i9 14900Kshould have default PL1/PL2 values of 125 and 253 W respectively, but many motherboard manufacturers use 253 W or higher for both.
While using the default limits greatly helps to prevent Core i7 and i9 processors from becoming too hot and unstable, they also impact the maximum sustained performance of the chip. Where a CPU might be able easily to reach 5.6 GHz at 250 W, it will only briefly do so and not sustain it at, say, 150 W or lower.
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That’s because the majority of today’s graphics-heavy games demand far more of the GPU than the central processor.
Your next upgrade(Image credit: Future)Best CPU for gaming: The top chips from Intel and AMD.Best gaming motherboard: The right boards.Best graphics card: Your perfect pixel-pusher awaits.Best SSD for gaming: Get into the game ahead of the rest.
Your next upgrade
(Image credit: Future)Best CPU for gaming: The top chips from Intel and AMD.Best gaming motherboard: The right boards.Best graphics card: Your perfect pixel-pusher awaits.Best SSD for gaming: Get into the game ahead of the rest.
(Image credit: Future)
Best CPU for gaming: The top chips from Intel and AMD.Best gaming motherboard: The right boards.Best graphics card: Your perfect pixel-pusher awaits.Best SSD for gaming: Get into the game ahead of the rest.
Where it does become an issue is in applications that load up all the cores for sustained periods, such as offline renderers and large-scale data processing. The former is typically used in showcasing the performance of a new CPU, usually in the form ofCinebench.
And for many years, Intel has long enjoyed a lead in the content creation world, thanks to the Core i9’s high clock speeds and thread count.
If Intel can’t resolve the stability problem in the Raptor Lake and Raptor Lake Refresh high-end processors with microcode updates, then the only solution will be to enforce strict power and current limits across all motherboards. WithZen 5 Ryzen 9000 CPUsjust a few weeks away from hitting retailers' shelves, Intel could well lose the content creation title, as well as thegaming crown, to AMD.
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