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Core i3-1215U vs i7-5820K


Description
The i3-1215U is based on Alder Lake architecture while the i7-5820K is based on Haswell.

Using the multithread performance as a reference, the i3-1215U gets a score of 129.6 k points while the i7-5820K gets 129.1 k points.

Summarizing, the i3-1215U is 1 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
306f2
Core
Alder Lake-H
Haswell-E
Architecture
Base frecuency
0.9 GHz
3.3 GHz
Boost frecuency
4.4 GHz
3.6 GHz
Socket
BGA 1744
LGA 1150
Cores/Threads
6/8
6/12
TDP
15 W
140 W
Cache L1 (d+i)
2x32/4x64+2x48/4x32 kB
6x32+6x32 kB
Cache L2
2x1280+2x2048 kB
6x256 kB
Cache L3
10240 kB
15360 kB
Date
April 2022
September 2014
Mean monothread perf.
80.34k points
31.53k points
Mean multithread perf.
185.6k points
129.06k 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
i3-1215U
i7-5820K
Test#1 (Integers)
6.95k
3.82k (x0.55)
Test#2 (FP)
16.28k
9.64k (x0.59)
Test#3 (Generic, ZIP)
10.49k
4.29k (x0.41)
Test#1 (Memory)
9.95k
3.78k (x0.38)
TOTAL
43.67k
21.53k (x0.49)

Multithread

i3-1215U

i7-5820K
Test#1 (Integers)
14.97k
18.07k (x1.21)
Test#2 (FP)
51.01k
64.25k (x1.26)
Test#3 (Generic, ZIP)
30.47k
27.03k (x0.89)
Test#1 (Memory)
8.59k
8.03k (x0.94)
TOTAL
105.05k
117.38k (x1.12)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i3-1215U
i7-5820K
Test#1 (Integers)
15.63k
12.03k (x0.77)
Test#2 (FP)
20.2k
11.23k (x0.56)
Test#3 (Generic, ZIP)
9.94k
4.55k (x0.46)
Test#1 (Memory)
8.06k
3.72k (x0.46)
TOTAL
53.83k
31.53k (x0.59)

Multithread

i3-1215U

i7-5820K
Test#1 (Integers)
35.72k
49.48k (x1.39)
Test#2 (FP)
56.41k
52.21k (x0.93)
Test#3 (Generic, ZIP)
25k
19.7k (x0.79)
Test#1 (Memory)
12.48k
7.67k (x0.61)
TOTAL
129.6k
129.06k (x1)

Performance/W
i3-1215U
i7-5820K
Test#1 (Integers)
2381 points/W
353 points/W
Test#2 (FP)
3761 points/W
373 points/W
Test#3 (Generic, ZIP)
1667 points/W
141 points/W
Test#1 (Memory)
832 points/W
55 points/W
TOTAL
8640 points/W
922 points/W

Performance/GHz
i3-1215U
i7-5820K
Test#1 (Integers)
3553 points/GHz
3343 points/GHz
Test#2 (FP)
4591 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
2260 points/GHz
1264 points/GHz
Test#1 (Memory)
1832 points/GHz
1033 points/GHz
TOTAL
12234 points/GHz
8759 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