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Core i9-12900KF vs i5-8259U


Description
The i9-12900KF is based on Alder Lake architecture while the i5-8259U is based on Coffee Lake.

Using the multithread performance as a reference, the i9-12900KF gets a score of 1219.3 k points while the i5-8259U gets 229 k points.

Summarizing, the i9-12900KF is 5.3 times faster than the i5-8259U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
806ea
Core
Alder Lake-S
Coffee Lake-U
Architecture
Base frecuency
3.2 GHz
2.3 GHz
Boost frecuency
5.2 GHz
3.8 GHz
Socket
LGA 1700
BGA 1528
Cores/Threads
16/24
4/8
TDP
125 W
28 W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
4x32+x4x32 kB
Cache L2
8x1280+8x2048 kB
4x256 kB
Cache L3
30720 kB
6144 kB
Date
November 2021
March 2018
Mean monothread perf.
120.97k points
54.55k points
Mean multithread perf.
1219.33k points
229k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i9-12900KF
i5-8259U
Test#1 (Integers)
57.05k
21.06k (x0.37)
Test#2 (FP)
29.66k
19.79k (x0.67)
Test#3 (Generic, ZIP)
16.48k
4.72k (x0.29)
Test#1 (Memory)
17.78k
8.98k (x0.51)
TOTAL
120.97k
54.55k (x0.45)

Multithread

i9-12900KF

i5-8259U
Test#1 (Integers)
546.04k
96.43k (x0.18)
Test#2 (FP)
437.01k
85.46k (x0.2)
Test#3 (Generic, ZIP)
211.36k
22.31k (x0.11)
Test#1 (Memory)
24.92k
24.81k (x1)
TOTAL
1219.33k
229k (x0.19)

Performance/W
i9-12900KF
i5-8259U
Test#1 (Integers)
4368 points/W
3444 points/W
Test#2 (FP)
3496 points/W
3052 points/W
Test#3 (Generic, ZIP)
1691 points/W
797 points/W
Test#1 (Memory)
199 points/W
886 points/W
TOTAL
9755 points/W
8179 points/W

Performance/GHz
i9-12900KF
i5-8259U
Test#1 (Integers)
10972 points/GHz
5543 points/GHz
Test#2 (FP)
5704 points/GHz
5208 points/GHz
Test#3 (Generic, ZIP)
3170 points/GHz
1241 points/GHz
Test#1 (Memory)
3419 points/GHz
2363 points/GHz
TOTAL
23264 points/GHz
14355 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4