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Core i9-14900K vs i5-8259U


Description
The i9-14900K is based on Raptor Lake architecture while the i5-8259U is based on Coffee Lake.

Using the multithread performance as a reference, the i9-14900K gets a score of 1756.6 k points while the i5-8259U gets 229 k points.

Summarizing, the i9-14900K is 7.7 times faster than the i5-8259U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
b0671
806ea
Core
Raptor Lake-
Coffee Lake-U
Architecture
Raptor Lake
Base frecuency
3.2 GHz
2.3 GHz
Boost frecuency
6 GHz
3.8 GHz
Socket
LGA 1700
BGA 1528
Cores/Threads
24/32
4/8
TDP
125 W
28 W
Cache L1 (d+i)
kB
4x32+x4x32 kB
Cache L2
kB
4x256 kB
Cache L3
36864 kB
6144 kB
Date
October 2023
March 2018
Mean monothread perf.
137.37k points
54.55k points
Mean multithread perf.
1756.59k 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
i9-14900K
i5-8259U
Test#1 (Integers)
63.55k
21.06k (x0.33)
Test#2 (FP)
32.3k
19.79k (x0.61)
Test#3 (Generic, ZIP)
18.92k
4.72k (x0.25)
Test#1 (Memory)
22.61k
8.98k (x0.4)
TOTAL
137.37k
54.55k (x0.4)

Multithread

i9-14900K

i5-8259U
Test#1 (Integers)
813.87k
96.43k (x0.12)
Test#2 (FP)
608.32k
85.46k (x0.14)
Test#3 (Generic, ZIP)
313.09k
22.31k (x0.07)
Test#1 (Memory)
21.31k
24.81k (x1.16)
TOTAL
1756.59k
229k (x0.13)

Performance/W
i9-14900K
i5-8259U
Test#1 (Integers)
6511 points/W
3444 points/W
Test#2 (FP)
4867 points/W
3052 points/W
Test#3 (Generic, ZIP)
2505 points/W
797 points/W
Test#1 (Memory)
170 points/W
886 points/W
TOTAL
14053 points/W
8179 points/W

Performance/GHz
i9-14900K
i5-8259U
Test#1 (Integers)
10591 points/GHz
5543 points/GHz
Test#2 (FP)
5383 points/GHz
5208 points/GHz
Test#3 (Generic, ZIP)
3153 points/GHz
1241 points/GHz
Test#1 (Memory)
3768 points/GHz
2363 points/GHz
TOTAL
22895 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