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Core Ultra 5 245K vs Core Ultra 9 285K: specs and benchmark comparison

AIntel · Arrow Lake

Intel Core Ultra 5 245K

  • 14 cores / 14 threads
  • up to 5.2 GHz
  • LGA1851

October 24, 2024 · $309 at launch

BIntel · Arrow Lake

Intel Core Ultra 9 285K

  • 24 cores / 24 threads
  • up to 5.7 GHz
  • LGA1851

October 24, 2024 · $589 at launch

Short verdict

Intel Core Ultra 9 285K leads in every scenario with comparable benchmarks: multi-thread performance. This does not imply an advantage in tasks without benchmarks.

Compare with AI
← Core Ultra 5 245KCore Ultra 9 285K →

  • Multi-thread performance

    B +111.6%

    Intel Core Ultra 9 285K leads in this scenario (up to 111.6% in comparable benchmarks).

No comparable benchmarks yet: single-thread performance, gaming (cpu-bound scenarios), power efficiency.

Advantages

Only measured and rated values: a noticeable benchmark gap and specs where more is better.

Where Core Ultra 5 245K is better1

  • Launch price $280 lower$309 vs $589

Where Core Ultra 9 285K is better5

  • Blender Benchmark 4.5.0 74.7% faster561 samples/min vs 321 samples/min

  • Cores 10 more24 (8P + 16E) vs 14 (6P + 8E)

  • Threads 10 more24 vs 14

  • L2 cache 14 MB more40 MB vs 26 MB

  • L3 cache 12 MB more36 MB vs 24 MB

Benchmarks

Results are compared within one benchmark, one version and the same conditions.

  • Blender Benchmark 4.5.0

    CPU, sum of scenes monster + junkshop + classroom · samples/min, higher is better

    B ahead by 74.7%

    Position among tested models (89)

    A · 321B · 561
    0200400600800
    Each dot is one model’s median in this benchmark. The scale starts at zero, samples/min.

    Intel Core Ultra 9 285K is ahead by 74.7% in this benchmark.

    About the measurement and source
    A · Intel Core Ultra 5 245K

    321.4 samples/min · community measurement, sample 22 · November 14, 2026

    Blender Open Data (Blender Foundation)

    Median of 22 submissions (3 outliers excluded), interquartile range 310.8–336.58; submissions 2025-07-18 to 2026-03-20; CPU backend. Snapshot 2026-11-14.

    B · Intel Core Ultra 9 285K

    561.4 samples/min · community measurement, sample 236 · November 14, 2026

    Blender Open Data (Blender Foundation)

    Median of 236 submissions (44 outliers excluded), interquartile range 545.02–579.08; submissions 2025-07-17 to 2026-10-22; CPU backend. Snapshot 2026-11-14.

    difference = |A − B| ÷ the smaller value × 100%. The 5% noticeable threshold is a UX heuristic, not statistical significance.

    Cycles render in Blender Benchmark. Median of the sum of samples per minute over three scenes after removing outliers.

Other comparable benchmarks (1)
BenchmarkABDifference
Blender Benchmark 5.2.0CPU, sum of scenes monster + junkshop + classroom271.6574.7B +111.6%

Each benchmark version has its own scale: numbers are compared only within a row.

Reference results (7)
BenchmarkABDifference
Blender Benchmark 4.2.0CPU, sum of scenes monster + junkshop + classroom322.2558.1reference
Blender Benchmark 5.1.1CPU, sum of scenes monster + junkshop + classroom356612reference
Blender Benchmark 4.3.0CPU, sum of scenes monster + junkshop + classroom311.7543.8reference
Blender Benchmark 4.4.0CPU, sum of scenes monster + junkshop + classroom315.8557.2reference
Blender Benchmark 5.0.0CPU, sum of scenes monster + junkshop + classroom316.9525.3reference
Blender Benchmark 5.1.0CPU, sum of scenes monster + junkshop + classroom362.7607.8reference
Blender Benchmark 4.0.0CPU, sum of scenes monster + junkshop + classroom—393.6no pair

Each benchmark version has its own scale: numbers are compared only within a row.

Specifications

Cores and clocks

  • Cores

    A14 (6P + 8E)

    B24 (8P + 16E)

    B: 10 more

    Cores of different types may differ in performance.

  • Threads

    A14

    B24

    B: 10 more

  • Base clock

    A4.2 GHz

    B3.7 GHz

    A: 0.5 GHz more

    For hybrid Intel CPUs, the P-core base clock is shown.

  • Max clock (Boost/Turbo)

    A5.2 GHz

    B5.7 GHz

    B: 0.5 GHz more

Cache

  • L2 cache

    A26 MB

    B40 MB

    B: 14 MB more

  • L3 cache

    A24 MB

    B36 MB

    B: 12 MB more

Platform

  • Socket

    ALGA1851

    BLGA1851

    equal

  • Process node

    Ano data

    BTSMC N3B

    no data for A

Memory and interfaces

  • Memory type

    ADDR5

    BDDR5

    equal

  • Memory channels

    A2

    B2

    equal

  • Official memory speed

    A6,400 MT/s

    B6,400 MT/s

    equal

    For controllers that support two generations, the speed for the newer memory type is shown.

  • Max memory capacity

    A256 GB

    B256 GB

    equal

  • PCI Express

    APCIe 5.0 and 4.0, 24 lanes

    BPCIe 5.0 and 4.0, 24 lanes

    equal

  • Integrated graphics

    AIntel Graphics (4 Xe cores)

    BIntel Graphics (4 Xe cores)

    equal

Power

  • Processor Base Power (Intel)

    A125 W

    B125 W

    equal

  • Maximum Turbo Power (Intel)

    A159 W

    B250 W

    B: 91 W higher

“More” does not always mean “better”: higher power draw or size is a system requirement, not an advantage (such bars are dimmed).

Platform compatibility

  • Socket and BIOS support Needs checking

    Both models use LGA1851, but support on a specific motherboard depends on the chipset and BIOS version. Check the board maker’s CPU support list.

  • Memory Needs checking

    Both controllers support DDR5. The motherboard determines the memory type, so check its specification.

Compare with AI

An AI model reviews the specs and benchmarks of this pair and gives a plain-language verdict on who each model suits.

AI verdict

Questions and answers

Do Intel Core Ultra 5 245K and Intel Core Ultra 9 285K fit the same motherboard?

Both CPUs use the LGA1851 socket. Support on a specific board depends on the chipset and BIOS version, so check the board maker’s CPU support list.

How many cores and threads do Intel Core Ultra 5 245K and Intel Core Ultra 9 285K have?

Intel Core Ultra 5 245K: 14 cores / 14 threads. Intel Core Ultra 9 285K: 24 cores / 24 threads (manufacturer data).

Do these CPUs have integrated graphics?

Intel Core Ultra 5 245K: Intel Graphics (4 Xe cores). Intel Core Ultra 9 285K: Intel Graphics (4 Xe cores).

Which is faster: Intel Core Ultra 5 245K or Intel Core Ultra 9 285K?

Intel Core Ultra 9 285K leads in every scenario with comparable benchmarks: multi-thread performance. This does not imply an advantage in tasks without benchmarks.

Data sources (3)
  • Intel — specifications of Intel Core Ultra 5 245K, specifications of Intel Core Ultra 9 285Kchecked November 7, 2026
  • Blender Open Data (Blender Foundation) — benchmark Blender Benchmark 4.2.0, benchmark Blender Benchmark 4.5.0, benchmark Blender Benchmark 5.1.1, benchmark Blender Benchmark 5.2.0, benchmark Blender Benchmark 4.3.0, benchmark Blender Benchmark 4.4.0, benchmark Blender Benchmark 5.0.0, benchmark Blender Benchmark 5.1.0, benchmark Blender Benchmark 4.0.0checked November 14, 2026
  • Wikipedia (English) — release date and launch pricechecked November 14, 2026

How we compare: methodology. Where the data comes from: sources.

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