Home > CPU Comparison > Core Ultra 7 265K or Core i9 9900K: what's better?

Intel Core Ultra 7 265K vs i9 9900K

85 out of 100
Intel Core Ultra 7 265K
VS
41 out of 100
Intel Core i9 9900K
Intel Core Ultra 7 265K
Intel Core i9 9900K

We compared two desktop CPUs: the 3.9 GHz Intel Core Ultra 7 265K with 20-cores against the 3.6 GHz i9 9900K with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
The "iGPU" and "Power Efficiency" have a minor impact on the DeviceFacts Score for desktop CPU.
DeviceFacts Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
πŸ”Œ Usage Scenario:

Value for money (Beta)

Global average CPU prices are used by default! For better accuracy, enter your current prices and click β€œCalculate".
Currency
VS
100.2
(Excellent)
Value Index
11.7
(Bad)

Key Differences

What are the key differences between 9900K and 265K
Advantages of Intel Core Ultra 7 265K
  • More modern manufacturing process – 3 versus 14 nanometers
  • Newer - released 6 years and 2 months later
  • More powerful Intel Arc iGPU (4-Cores) integrated graphics: 2 vs 0.5 TFLOPS
  • Has 12 more physical cores
  • Around 60.8 GB/s (146%) higher theoretical memory bandwidth
  • Supports up to 256 GB DDR5-6400 RAM
  • Has 14 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • 95% faster in a single-core Geekbench v6 test - 3157 vs 1621 points
  • Newer PCI Express version – 5.0
  • 8% higher Turbo Boost frequency (5.4 GHz vs 5 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 7 265K
vs
Core i9 9900K

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (#24th place)
Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Core Ultra 7 265K +162%
21377
Core i9 9900K
8151
File compression 1580 MB/sec 545.7 MB/sec
Clang compilation 201.1 Klines/sec 67.7 Klines/sec
HTML 5 Browser 475.1 pages/sec 175.1 pages/sec
PDF Renderer 615.6 Mpixels/sec 275.6 Mpixels/sec
Text processing 350.8 pages/sec 159 pages/sec
Background blur 76.9 images/sec 40.4 images/sec
Photo processing 167.2 images/sec 68.6 images/sec
Ray tracing 42.2 Mpixels/sec 14.5 Mpixels/sec
Sources: GeekBench [1], [2] – 610 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Core Ultra 7 265K +224%
58591
Core i9 9900K
18059
Integer math 143.2 GOps/sec 66.1 GOps/sec
Floating point math 189.6 GOps/sec 41 GOps/sec
Find prime numbers 492M Primes/sec 46M Primes/sec
Random string sorting 79.7M Strings/sec 36.1M Strings/sec
Data encryption 48.2 GBytes/sec 6.3 GBytes/sec
Data compression 665.6 MBytes/sec 282.6 MBytes/sec
Physics 3730 Frames/sec 929 Frames/sec
Extended instructions 54.3B Matrices/sec 19B Matrices/sec
Sources: PassMark [3], [4] – 8205 & 17571 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core Ultra 7 265K +161%
464.73
Core i9 9900K
178.22

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 16.1 PPW 7.4 PPW
Geekbench 6 Multi / Watt 171 PPW 85.8 PPW
Passmark CPU Mark / Watt 468.7 PPW 190.1 PPW
Blender / Watt 3.72 PPW 1.88 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core Ultra 7 265K
DateBenchmarkResult
πŸ“˜ 2026-02-08 (HongKonger)Cinebench 2024140 / 1994
πŸ“˜ 2026-01-03 (HYUNKYU)Cinebench 2024137 / 1829
πŸ“˜ 2026-01-01 (Omi)Cinebench 2024138 / 1993
πŸ“˜ 2025-12-29 (Kolli)Cinebench 2024137 / 2012
πŸ“˜ 2025-11-06 (HJH)Cinebench 2024138 / 2020
Add View all (21)
Intel Core i9 9900K
DateBenchmarkResult
πŸ“˜ 2026-01-01 (Mr Scare)Cinebench 202479 / 662
πŸ“˜ 2025-08-09 (EndOfTheWorld77)Cinebench 202478 / 591
πŸ“˜ 2024-03-28 (Gribbstar)Cinebench 202479 / 706
Add View all (3)

Specifications

Full technical specification of Intel Core Ultra 7 265K and i9 9900K

General

Vendor Intel Intel
Released October 11, 2024 October 8, 2018
Type Desktop Desktop
Instruction Set x86-64 x86-64
Codename Arrow Lake Coffee Lake
Model number 265K i9-9900K
Integrated GPU Arc iGPU (4-Cores) UHD Graphics 630
Rival Equivalent - AMD Ryzen 7 9700X - AMD Ryzen 9 3900X
Successor - Intel Core Ultra 7 270K Plus - Intel Core Ultra 9 285K
Intel CPU rating (#8th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 8 16
Base Frequency (P) 3.9 GHz 3.6 GHz
Turbo Boost Frequency (P) 5.4 GHz 5 GHz
Efficient Cores
E-Cores 12 -
E-Threads 12 -
Base Frequency (E) 3.3 GHz -
Turbo Boost Frequency (E) 4.6 GHz -
Total
Total Cores 20 8
Total Threads 20 16
Bus Frequency 100 MHz 100 MHz
Multiplier 39x 36x
Bus Bandwidth - 8 GT/s
L1 Cache 112K (per core) 64K (per core)
L2 Cache 3MB (per core) 256K (per core)
L3 Cache 30MB (shared) 16MB (shared)
Unlocked Multiplier Yes Yes

Package

Fabrication Process 3 nm 14 nm
TDP (PL1) 125 W 95 W
Max. Boost TDP (PL2) 250 W -
Socket FCLGA-1851 LGA-1151
Peak Temperature 105Β°C 100Β°C
Desktop CPU ranking (14th and 145th place)

iGPU

Integrated Graphics Intel Arc iGPU (4-Cores) Intel UHD Graphics 630
GPU Base Clock 300 MHz 350 MHz
GPU Boost Clock 2000 MHz 1200 MHz
Shading Units 512 192
TMUs 32 24
ROPs 16 3
Execution Units 64 24
TGP 14 W 15 W
iGPU FLOPS
Core Ultra 7 265K +300%
2 TFLOPS
Core i9 9900K
0.5 TFLOPS
More info: UHD Graphics 630 compared to Arc iGPU (4-Cores)

Memory Support

Memory Types - DDR5-6400 - DDR4-2666
Max. Memory Size 256 GB 128 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s 41.6 GB/s
ECC Support Yes No

Misc

Official Site Intel Core Ultra 7 265K official page Intel Core i9 9900K official page
PCI Express Version 5.0 3.0
PCI Express Lanes 24 16

Cast your vote

Choose between two processors
4 (80%)
1 (20%)
Total votes: 5

Competitors

1. Intel Core Ultra 7 265K vs Intel Core Ultra 7 265KF
2. Intel Core Ultra 7 265K vs AMD Ryzen 9 9900X (3)
3. Intel Core Ultra 7 265K vs Intel Core Ultra 5 245K (5)
4. Intel Core Ultra 7 265K vs Intel Core Ultra 9 285K (2)
5. Intel Core Ultra 7 265K vs AMD Ryzen 7 9700X (3)
6. Intel Core i9 9900K vs AMD Ryzen 7 7800X3D
7. Intel Core i9 9900K vs Intel Core i9 14900K
8. Intel Core i9 9900K vs AMD Ryzen 7 9700X
9. Intel Core i9 9900K vs Intel Core i7 14700K
10. Intel Core i9 9900K vs Apple M3
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Comments

So which CPU will you choose: Intel Core i9 9900K or Ultra 7 265K?
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