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Intel Core Ultra 7 265KF vs Intel Core i5-2500S

Last updated: 2026-07-04

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 1 - 100 %

Intel Core Ultra 7 265KF

Rank 2 - 20 %

Intel Core i5-2500S

Multi-core performance

Rank 1 - 100 %

Intel Core Ultra 7 265KF

Rank 2 - 7 %

Intel Core i5-2500S

Geekbench 6 Single-Core
Single-core performance

20C / 20T · 5.50 GHz

3,210

4C / 4T · 3.70 GHz

633

Geekbench 6 Multi-Core
Multi-core performance

20C / 20T · 5.20 GHz

21,640

4C / 4T · 2.70 GHz

1,679

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Geekbench 5 (SC)
2,512 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

PassMark CPU-Mark
2,504 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

CPU performance per watt (efficiency)
140 entries

AI performance (NPU)
218 entries

Specifications

At a glance

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
Family	Intel Core Ultra 7 (31)	Intel Core i5 (336)
CPU group	Intel Core Ultra 200 AL-S (20)	Intel Core i 2000 (28)
Architecture	Arrow Lake	Sandy Bridge S
Technology	3 nm	32 nm
Segment	Desktop	Desktop
Socket	LGA 1851	LGA 1155
Predecessor
Successor

CPU Cores and Base Frequency

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
CPU Cores / Threads	20 / 20	4 / 4
Hyperthreading / SMT	✗	✗
Core architecture	hybrid (big.LITTLE)	normal
Core Cluster 1:	8x Lion Cove 3.90 - 5.50 GHz	4x 2.70 - 3.70 GHz
Core Cluster 2:	12x Skymont 3.30 - 4.60 GHz
L2-Cache	36.00 MB
L3-Cache	30.00 MB	6.00 MB
Overclocking	✓	✗

Integrated graphics (iGPU)

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
GPU name	no iGPU	Intel HD Graphics 2000
GPU frequency		0.85 - 1.10 GHz
CUs / Shader	/	6 / 48
Raytracing	✗	✗
Max. displays		2
Max. GPU Memory		2 GB
Technology		32 nm
Release date		Q1/2011

NPU AI performance

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
AI hardware	Intel® AI Boost
AI specifications	Intel AI Boost NPU 4 @ 13 TOPS
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
Memory	DDR5-6400 (102.4 GB/s)	DDR3-1333 (21.3 GB/s)
Max. Memory	256 GB	32 GB
Memory channels	2	2
ECC	Yes	No
PCIe	5.0 x 20	2.0 x 16
PCIe Bandwidth	78.8 GB/s	8.0 GB/s

Thermal Management

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
TDP	125 W	65 W
TDP (PL2)	177 W
TDP up	250 W
TDP down
T. junction max.	105 °C

Technical details

Wischen	Intel Core Ultra 7 265KF	Intel Core i5-2500S
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 11, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2	SSE4.1, SSE4.2, AVX
Release date	Q4/2024	Q1/2011
Release price	379 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core Ultra 7 265KF is 4.3 stars (68 ratings), while Intel Core i5-2500S has received 3.5 stars (6 ratings).

Click on the stars to rate one or both processors.

Intel Core Ultra 7 265KF
20C / 20T · 3.90 - 5.50 GHz

★★★★★

Intel Core i5-2500S
4C / 4T · 2.70 - 3.70 GHz

★★★★★