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Core i9-9900K vs i3-1215U


Description
The i9-9900K is based on Coffee Lake architecture while the i3-1215U is based on Alder Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i9-9900K is 2.9 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
906a4
Core
Coffee Lake-S
Alder Lake-H
Architecture
Base frecuency
3.6 GHz
0.9 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
LGA 1151
BGA 1744
Cores/Threads
8/16
6/8
TDP
95 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
8x256 kB
2x1280+2x2048 kB
Cache L3
16384 kB
10240 kB
Date
October 2018
April 2022
Mean monothread perf.
86.24k points
80.34k points
Mean multithread perf.
545.3k points
185.6k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i9-9900K
i3-1215U
Test#1 (Integers)
5.17k
6.95k (x1.34)
Test#2 (FP)
21.15k
16.28k (x0.77)
Test#3 (Generic, ZIP)
7.01k
10.49k (x1.5)
Test#1 (Memory)
15.32k
9.95k (x0.65)
TOTAL
48.66k
43.67k (x0.9)

Multithread

i9-9900K

i3-1215U
Test#1 (Integers)
38.45k
14.97k (x0.39)
Test#2 (FP)
155.68k
51.01k (x0.33)
Test#3 (Generic, ZIP)
51k
30.47k (x0.6)
Test#1 (Memory)
18.26k
8.59k (x0.47)
TOTAL
263.38k
105.05k (x0.4)

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
i9-9900K
i3-1215U
Test#1 (Integers)
33.62k
37.56k (x1.12)
Test#2 (FP)
30.02k
21.13k (x0.7)
Test#3 (Generic, ZIP)
7.17k
11.35k (x1.58)
Test#1 (Memory)
15.43k
10.31k (x0.67)
TOTAL
86.24k
80.34k (x0.93)

Multithread

i9-9900K

i3-1215U
Test#1 (Integers)
248.93k
73.97k (x0.3)
Test#2 (FP)
224.43k
72.37k (x0.32)
Test#3 (Generic, ZIP)
53.39k
29.61k (x0.55)
Test#1 (Memory)
18.54k
9.65k (x0.52)
TOTAL
545.3k
185.6k (x0.34)

Performance/W
i9-9900K
i3-1215U
Test#1 (Integers)
2620 points/W
4931 points/W
Test#2 (FP)
2362 points/W
4825 points/W
Test#3 (Generic, ZIP)
562 points/W
1974 points/W
Test#1 (Memory)
195 points/W
643 points/W
TOTAL
5740 points/W
12374 points/W

Performance/GHz
i9-9900K
i3-1215U
Test#1 (Integers)
6724 points/GHz
8535 points/GHz
Test#2 (FP)
6003 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
2579 points/GHz
Test#1 (Memory)
3087 points/GHz
2343 points/GHz
TOTAL
17247 points/GHz
18258 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