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Intel Core i9-11900KB vs Intel Core i5-2500

Last updated: 2026-07-05

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 i9-11900KB

Rank 2 - 37 %

Intel Core i5-2500

Multi-core performance

Rank 1 - 100 %

Intel Core i9-11900KB

Rank 2 - 19 %

Intel Core i5-2500

Cinebench R23 Single-Core
Single-core performance

8C / 16T · 5.30 GHz

1,663 pts

4C / 4T · 3.70 GHz

697 pts

Cinebench R23 Multi-Core
Multi-core performance

8C / 16T · 4.90 GHz

12,264 pts

4C / 4T · 3.30 GHz

2,531 pts

Geekbench 6 Single-Core
Single-core performance

8C / 16T · 5.30 GHz

2,231

4C / 4T · 3.70 GHz

633

Geekbench 6 Multi-Core
Multi-core performance

8C / 16T · 4.90 GHz

10,645

4C / 4T · 3.30 GHz

1,845

Geekbench 5, 64bit Single-Core
Single-core performance

8C / 16T · 5.30 GHz

1,878

4C / 4T · 3.70 GHz

737

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel UHD Graphics 11th Gen (32 EU)

742

Intel HD Graphics 2000

106

More benchmarks

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Specifications

At a glance

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
Family	Intel Core i9 (81)	Intel Core i5 (336)
CPU group	Intel Core i 11000H (17)	Intel Core i 2000 (28)
Architecture	Tiger Lake H	Sandy Bridge S
Technology	10 nm	32 nm
Segment	Notebook	Desktop
Socket	BGA 1787	LGA 1155
Predecessor
Successor

CPU Cores and Base Frequency

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
CPU Cores / Threads	8 / 16	4 / 4
Hyperthreading / SMT	✓	✗
Core architecture	normal	normal
Cores:	8x	4x
Frequency:	3.30 GHz	3.30 GHz
Turbo (1 Core):	5.30 GHz	3.70 GHz
Turbo (All Cores):	4.90 GHz
L2-Cache	4.00 MB
L3-Cache	20.00 MB	6.00 MB
Overclocking	✓	✗

Integrated graphics (iGPU)

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
GPU name	Intel UHD Graphics 11th Gen (32 EU)	Intel HD Graphics 2000
GPU frequency	0.35 - 1.45 GHz	0.85 - 1.10 GHz
CUs / Shader	32 / 256	6 / 48
Raytracing	✗	✗
Max. displays	3	2
Max. GPU Memory	64 GB	2 GB
Technology	10 nm	32 nm
Release date	Q2/2021	Q1/2011

NPU AI performance

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
Memory	DDR4-3200 (51.2 GB/s)	DDR3-1333 (21.3 GB/s)
Max. Memory	128 GB	32 GB
Memory channels	2	2
ECC	No	No
PCIe	3.0 x 16	2.0 x 16
PCIe Bandwidth	15.8 GB/s	8.0 GB/s

Thermal Management

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
TDP	65 W	95 W
TDP (PL2)
TDP up
TDP down	55 W
T. junction max.	100 °C

Technical details

Wischen	Intel Core i9-11900KB	Intel Core i5-2500
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Windows 11, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2, AVX-512	SSE4.1, SSE4.2, AVX
Release date	Q2/2021	Q1/2011
Release price	583 $
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 i9-11900KB is 4.0 stars (4 ratings), while Intel Core i5-2500 has received 4.3 stars (28 ratings).

Click on the stars to rate one or both processors.

Intel Core i9-11900KB
8C / 16T · 3.30 - 5.30 GHz

★★★★★

Intel Core i5-2500
4C / 4T · 3.30 - 3.70 GHz

★★★★★