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Core i5-10400 vs i7-6600U


Description
The i5-10400 is based on Comet Lake architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the i5-10400 gets a score of 367.7 k points while the i7-6600U gets 79.2 k points.

Summarizing, the i5-10400 is 4.6 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
406e3
Core
Comet Lake-S
Skylake-U
Architecture
Base frecuency
2.9 GHz
2.6 GHz
Boost frecuency
4.3 GHz
3.4 GHz
Socket
LGA 1200
BGA1356
Cores/Threads
6/12
2/4
TDP
65 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
2x32+2x32 kB
Cache L2
6x256 kB
2x256 kB
Cache L3
12288 kB
4096 kB
Date
April 2020
September 2015
Mean monothread perf.
69.31k points
39.73k points
Mean multithread perf.
367.65k points
79.22k 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
i5-10400
i7-6600U
Test#1 (Integers)
27.46k
16.72k (x0.61)
Test#2 (FP)
24.28k
14.7k (x0.61)
Test#3 (Generic, ZIP)
5.65k
3.4k (x0.6)
Test#1 (Memory)
11.92k
4.9k (x0.41)
TOTAL
69.31k
39.73k (x0.57)

Multithread

i5-10400

i7-6600U
Test#1 (Integers)
165.5k
33.41k (x0.2)
Test#2 (FP)
156.32k
31.66k (x0.2)
Test#3 (Generic, ZIP)
39.88k
8.18k (x0.21)
Test#1 (Memory)
5.96k
5.97k (x1)
TOTAL
367.65k
79.22k (x0.22)

Performance/W
i5-10400
i7-6600U
Test#1 (Integers)
2546 points/W
2227 points/W
Test#2 (FP)
2405 points/W
2111 points/W
Test#3 (Generic, ZIP)
614 points/W
546 points/W
Test#1 (Memory)
92 points/W
398 points/W
TOTAL
5656 points/W
5282 points/W

Performance/GHz
i5-10400
i7-6600U
Test#1 (Integers)
6386 points/GHz
4919 points/GHz
Test#2 (FP)
5647 points/GHz
4325 points/GHz
Test#3 (Generic, ZIP)
1314 points/GHz
999 points/GHz
Test#1 (Memory)
2772 points/GHz
1441 points/GHz
TOTAL
16118 points/GHz
11684 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