PC Ekspert Forum - View Single Post - Intel "Arrow Lake" LGA-1851 Info Thread

The Exiled · 18.12.2024., 20:38

Citiraj:

Intel reports findings on missing Arrow Lake performance, targets Jan 2025 for 0x114 microcode

Citiraj:

Today, the company released documentation that highlights all issues the company identified by Intel, their technical root cause, and what's been done about it. Long story short—most of these issues are already addressed, but the Microcode update should be in circulation by January 2025, when the company expands its Core Ultra 200-series desktop processors with 65 W models. The first set of performance issues are caused due to the way the OS scheduler works with the various kinds of CPU cores on "Arrow Lake-S," which was causing higher delta (variation) in scores among benchmark runs with identical settings. Intel confirms that the first set of issues are caused due to faulty collaborative power management between the OS and the processor.

The second set of performance issues are caused due to Intel Application Performance Optimizer (APO) not delivering on performance uplifts along expected lines. Another rather bizarre set of issues affected games using EAC (Easy Anti-Cheat), triggering a BSOD at launch, when running on Windows 11 24H2. This was due to a bug with the kernel-mode driver (KMD) of EAC when paired with Windows 11 24H2, which was allegedly exacerbated with virtualization-based security (VBS) being disabled by the user (Microsoft enables this by default for 24H2). Intel says that it's been working with Epic Games to distribute an updated EAC KMD to game developers.

The fourth set of performance issues are caused due to combination of incorrect default settings in motherboard UEFI setup programs. Some of these are glaring omissions, such as PCI Resizable BAR being disabled by default, APO being disabled, wrong Compute Ring Frequency, a setting that affects intercore latency, and integrated memory controller Gear mode, which affects the ratio between the IMC frequency and DRAM frequency, enabling Gear 4 even in lower frequencies that can work perfectly stable with Gear 2. These could affect performance by anywhere between 2% to 14%. Intel says that it's been pursuing motherboard vendors to release BIOS updates that fix these defaults, and these should already be in circulation.

Lastly, we reach the heart of the matter, the 0x114 Microcode Update. This update is said to include several "performance enhancements," and the company's motherboard partners are working to integrate it with their future BIOS updates. Intel says that the Microcode should cause a "single digit percentage performance enhancement" across games. This is a geomean obtained over 35 games, which means the 285K should end up faster than the Core i9-14900K, and inch closer to the Ryzen 7 9800X3D in gaming performance. Intel says that the 0x114 Microcode Update is being targeted for January 2025.

Izvor: TechPowerUp

Robert Hallock je opet napričal i obećal od svega pomalo, ali ništa konkretno i bez pravih testova, a siječan 2025. bude ključan za Arrow Lake - pitanje je da li bude Hallock do onda još u Intelu.