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ProcessorsUpdated Jan 4, 20263 min read
Intel Core Ultra 5 Desktop Processor 245K - Arrow Lake-S (Core Ultra Series 2) - Processors - 4.5 stars

Intel Core Ultra 5 Desktop Processor 245K

Arrow Lake unlocked CPU: 14 cores (6P+8E), 14 threads. Max 5.2 GHz. 24MB L3. Supports PCIe 5.0, DDR5-6400 (CUDIMM). NPU included. 125W base. No cooler.

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💡 Is Intel Core Ultra 5 Desktop Processor 245K Worth It?

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Key specifications

Architecture Gen

Arrow Lake-S (Core Ultra Series 2)

Socket Platform

LGA1851

Cores Threads

14 Cores (6 Performance + 8 Efficient) / 14 Threads

Base Boost Clock

P-core: 4.2–5.2 GHz / E-core: 3.6–4.6 GHz

Cache L2 L3

24 MB Intel® Smart Cache (L3) + 26 MB L2 (50 MB Total)

TDP Power

125 W (Processor Base Power)

Max Turbo Power

159 W (Maximum Turbo Power)

Process Node

TSMC N3B (Compute Tile) / TSMC N6 (SoC Tile)

Memory Support

DDR5-6400 MT/s (Official); CUDIMM Support; Up to 192 GB

Memory Bandwidth Max

102.4 GB/s (at DDR5-6400)

Pcie Version

PCIe 5.0 and 4.0

Pcie Lanes

24 (20 PCIe 5.0 + 4 PCIe 4.0 Direct from CPU)

Igpu

Intel® Graphics (4 Xe-cores, 1.9 GHz Max Dynamic)

Instruction Features

SSE4.2, AVX2, VNNI, Intel 64, VT-x/d; NPU (13 TOPS AI)

Cooler Included

No (Heatsink not included)

Max Temp

105°C (221°F) Max Operating Temperature

Notes Limits

Requires LGA1851 motherboard (800 Series). No Hyper-Threading. Includes dedicated NPU for AI workloads.

Chipset Support

Intel 800 Series (Z890, B860, H810, etc.)

✓ Pros

  • Significantly improved power efficiency (performance-per-watt) vs. 14th Gen
  • Modern platform connectivity: Native Thunderbolt 4, WiFi 7, PCIe 5.0 lanes
  • Integrated NPU (13 TOPS) accelerates light local AI workloads
  • Run cooler than previous i5-K SKUs under load

✗ Cons

  • Gaming performance often flat or slightly lower than 14600K/Ryzen 9000
  • Removal of Hyper-Threading reduces multi-core potential in some apps
  • Requires new LGA1851 socket (incompatible with LGA1700)

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Frequently Asked Questions

+ Is the Intel Core Ultra 5 Desktop Processor 245K worth buying in 2026?

Yes, the Intel Core Ultra 5 Desktop Processor 245K is worth it if you prioritize significantly improved power efficiency (performance-per-watt) vs. 14th gen. With a 4.5/5 rating, it stands out in the processors category. However, consider that gaming performance often flat or slightly lower than 14600k/ryzen 9000. Check our detailed verdict above.

+ What are the main specs of Intel Core Ultra 5 Desktop Processor 245K?

Key specifications include: Architecture Gen: Arrow Lake-S (Core Ultra Series 2), Socket Platform: LGA1851, Cores Threads: 14 Cores (6 Performance + 8 Efficient) / 14 Threads, Base Boost Clock: P-core: 4.2–5.2 GHz / E-core: 3.6–4.6 GHz. See the full specifications table above for complete technical details.

+ Where is the best place to buy Intel Core Ultra 5 Desktop Processor 245K?

For US buyers, Amazon offers the best combination of competitive pricing, fast Prime shipping, easy returns, and reliable warranty support. Use our affiliate links above to check current prices and availability.

+ What are the pros and cons of Intel Core Ultra 5 Desktop Processor 245K?

Pros: Significantly improved power efficiency (performance-per-watt) vs. 14th Gen; Modern platform connectivity: Native Thunderbolt 4, WiFi 7, PCIe 5.0 lanes; Integrated NPU (13 TOPS) accelerates light local AI workloads. Cons: Gaming performance often flat or slightly lower than 14600K/Ryzen 9000; Removal of Hyper-Threading reduces multi-core potential in some apps. See our detailed breakdown above for the complete analysis.

+ How does Intel Core Ultra 5 Desktop Processor 245K compare to alternatives?

We have 18+ detailed comparisons with similar processors. Popular matchups include AMD Ryzen 7 7800X3D and AMD Ryzen 9 7950X3D. Check the comparison section above.

+ Are PageBen reviews independent and unbiased?

Yes. PageBen is an independent review site. While we use affiliate links for monetization, our recommendations are research-driven and based on objective specifications, user feedback, and real-world performance. We are not sponsored by manufacturers.

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