Otherwise, Intel boosted the die-to-die frequency by 900 MHz, speeding up communication between the Compute tile and SoC tile, and bumped the fabric frequency by 400 MHz. The goal is to make up for arguably the weakest aspect of the Arrow Lake architecture out of the box: additional latency brought on by Intel’s first chiplet-based architecture. You can achieve these higher frequencies with Core 200S Boost on Z-series motherboards, but the bump with the Core Ultra 5 250K Plus comes stock, so you’ll get the same frequencies on B- and H-series motherboards.
Specs aside, the other big introduction with Arrow Lake Refresh is the Intel Binary Optimization Tool, or iBOT. We go into more detail about iBOT in our Core Ultra 7 270K Plus review, and we have a dedicated article on the feature coming soon. But we’ll give you a quick rundown of what it’s doing here so the testing makes sense.
iBOT is a translation layer along the lines of Apple Rosetta or Microsoft Prism. It’s just not translating instructions from one ISA to another. Instead, it’s optimizing how instructions run for a given architecture. For example, if there’s a cache miss because data is tagged improperly, iBOT allows Intel to step in at runtime and tag that data properly, effectively increasing IPC by avoiding major cache misses, branch mispredictions, and hardware interrupts.
This is the type of optimization a developer does before recompiling the binary. For Intel, it’s squeezing out extra performance by translating a general x86 binary to a binary specifically optimized for a given architecture. Intel can do this due to hardware registers within the chip that show what’s happening while code is executing. And, instead of changing the source code and recompiling, Intel is redirecting inefficiencies on a production binary at runtime via iBOT.
There are some potential downsides to iBOT. It’s adjusting code running in real-time, so it can throw up red flags to software like anti-cheat. Intel says iBOT operates in the same space as user applications, however; in other words, it doesn’t have kernel- or hardware-level access.
Jake Roach is the Senior CPU Analyst at Tom\u2019s Hardware, writing reviews, news, and features about the latest consumer and workstation processors. ","collapsible":{"enabled":true,"maxHeight":250,"readMoreText":"Read more","readLessText":"Read less"}}), "https://slice.vanilla.futurecdn.net/13-4-18/js/authorBio.js"); } else { console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); } Jake Roach Social Links Navigation Senior Analyst, CPUs Jake Roach is the Senior CPU Analyst at Tom’s Hardware, writing reviews, news, and features about the latest consumer and workstation processors.
Notton I really like the cost performance on the i5 250K. It should kick AMD right in the nose. Now if only 32GB of RAM didn't cost $600… Reply
dmitche31958 Notton said: I really like the cost performance on the i5 250K. It should kick AMD right in the nose. Now if only 32GB of RAM didn't cost $600… I agree. I'm not a dead in my seat gamer and productivity is far more important than squeezing a few FPS which most people can not notice, same as 4K TVs. Most people don't care about the soon to be outdated forms as like me we don't update with every new iteration. I'll update every 5-8 years and only when I see a need to and not when I want to feel the need to have the coolest and newest shiny object on the street. Reply
Gururu Fair analysis captures sentiment of the dmitche31958 said: I agree. I'm not a dead in my seat gamer and productivity is far more important than squeezing a few FPS which most people can not notice, same as 4K TVs. Most people don't care about the soon to be outdated forms as like me we don't update with every new iteration. I'll update every 5-8 years and only when I see a need to and not when I want to feel the need to have the coolest and newest shiny object on the street. 99% of consumer base, including corporate, only cares that the platform is supported. The amount of users that upgrade a CPU is about as much as the dGPU market share held by Intel. Reply
usertests Good overall. I'd like to see it in some cheap OEM PCs, but I'll be keeping an eye on Nova Lake-S's iGPU. There is a 250KF that removes the iGPU for a $15 discount. Could the crazy idle power consumption that edges out the 270K here be explained by the higher base clocks? That and the D2D clock, of course. Reply
thestryker usertests said: Could the crazy idle power consumption that edges out the 270K here be explained by the higher base clocks? No it's definitely not as they all drop much lower than that on idle (base clocks are simply minimum clock speed under load). There's something else happening here as going through other reviews I'm not seeing significantly higher power numbers on 250K/270K parts. 200S Boost and using high speed memory can certainly play a part, but it would be reflected in the ARL-S parts too. While I doubt it perhaps even something with the updated APO/iBOT if it's running. usertests said: I'll be keeping an eye on Nova Lake-S's iGPU. The GPU portion will be no faster, and might even be slower, than ARL-S given it'll be 2 Xe3 cores versus 4 Xe cores. Reply
patriotpa NICE CPU. A word of warning though….. Geekbench6 site is flagging ALL 250K 270K and 290K benchmarks invalid with the following: "This benchmark result may be invalid due to binary modification tools that can run on this system." I wonder what skin they have in the game or who's paying them. Reply
thestryker patriotpa said: "This benchmark result may be invalid due to binary modification tools that can run on this system." I wonder what skin they have in the game or who's paying them. This is about iBOT. I'm guessing they're considering it to be "cheating" and cannot detect whether or not it's running. Of course given what a joke of a benchmark geekbench is that's pretty rich. Reply
dalauder This name sounds a lot like the legendary processor, the i5-2500K. That's probably the oldest midrange processor that would still make a computer feel normal in ordinary daily tasks. Reply
Key considerations
- Investor positioning can change fast
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Reference reading
- https://www.tomshardware.com/pc-components/cpus/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/cpus/intel-core-ultra-5-250k-plus-review#main
- https://www.tomshardware.com
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