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Core i7-7700K vs i3-1215U


Description
The i7-7700K is based on Kaby Lake architecture while the i3-1215U is based on Alder Lake.

Using the multithread performance as a reference, the i7-7700K gets a score of 289.8 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i7-7700K is 1.6 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906a4
Core
Kaby Lake-S
Alder Lake-H
Architecture
Base frecuency
4.2 GHz
0.9 GHz
Boost frecuency
4.5 GHz
4.4 GHz
Socket
LGA 1151
BGA 1744
Cores/Threads
4/8
6/8
TDP
95 W
15 W
Cache L1 (d+i)
32+32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
256 kB
2x1280+2x2048 kB
Cache L3
8192 kB
10240 kB
Date
September 2016
April 2022
Mean monothread perf.
76.9k points
80.34k points
Mean multithread perf.
289.82k 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
i7-7700K
i3-1215U
Test#1 (Integers)
4.63k
6.95k (x1.5)
Test#2 (FP)
18.92k
16.28k (x0.86)
Test#3 (Generic, ZIP)
6.22k
10.49k (x1.69)
Test#1 (Memory)
13.92k
9.95k (x0.71)
TOTAL
43.7k
43.67k (x1)

Multithread

i7-7700K

i3-1215U
Test#1 (Integers)
18.53k
14.97k (x0.81)
Test#2 (FP)
86.49k
51.01k (x0.59)
Test#3 (Generic, ZIP)
28.78k
30.47k (x1.06)
Test#1 (Memory)
9.67k
8.59k (x0.89)
TOTAL
143.47k
105.05k (x0.73)

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
i7-7700K
i3-1215U
Test#1 (Integers)
17.55k
15.63k (x0.89)
Test#2 (FP)
27.82k
20.2k (x0.73)
Test#3 (Generic, ZIP)
6.8k
9.94k (x1.46)
Test#1 (Memory)
14.83k
8.06k (x0.54)
TOTAL
67k
53.83k (x0.8)

Multithread

i7-7700K

i3-1215U
Test#1 (Integers)
68.4k
35.72k (x0.52)
Test#2 (FP)
118.8k
56.41k (x0.47)
Test#3 (Generic, ZIP)
33.34k
25k (x0.75)
Test#1 (Memory)
17.43k
12.48k (x0.72)
TOTAL
237.97k
129.6k (x0.54)

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
i7-7700K
i3-1215U
Test#1 (Integers)
30.44k
37.56k (x1.23)
Test#2 (FP)
26.91k
21.13k (x0.79)
Test#3 (Generic, ZIP)
6.25k
11.35k (x1.82)
Test#1 (Memory)
13.3k
10.31k (x0.78)
TOTAL
76.9k
80.34k (x1.04)

Multithread

i7-7700K

i3-1215U
Test#1 (Integers)
127.73k
73.97k (x0.58)
Test#2 (FP)
123.68k
72.37k (x0.59)
Test#3 (Generic, ZIP)
29.34k
29.61k (x1.01)
Test#1 (Memory)
9.08k
9.65k (x1.06)
TOTAL
289.82k
185.6k (x0.64)

Performance/W
i7-7700K
i3-1215U
Test#1 (Integers)
1345 points/W
4931 points/W
Test#2 (FP)
1302 points/W
4825 points/W
Test#3 (Generic, ZIP)
309 points/W
1974 points/W
Test#1 (Memory)
96 points/W
643 points/W
TOTAL
3051 points/W
12374 points/W

Performance/GHz
i7-7700K
i3-1215U
Test#1 (Integers)
6765 points/GHz
8535 points/GHz
Test#2 (FP)
5981 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
1388 points/GHz
2579 points/GHz
Test#1 (Memory)
2955 points/GHz
2343 points/GHz
TOTAL
17089 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