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Core i5-10400T vs i5-9600KF


Description
The i5-10400T is based on Comet Lake architecture while the i5-9600KF is based on Coffee Lake.

Using the multithread performance as a reference, the i5-10400T gets a score of 307.2 k points while the i5-9600KF gets 371.1 k points.

Summarizing, the i5-9600KF is 1.2 times faster than the i5-10400T. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
906ec
Core
Comet Lake-S
Coffee Lake-S
Architecture
Base frecuency
2 GHz
3.7 GHz
Boost frecuency
3.6 GHz
4.6 GHz
Socket
FC-LGA 1200
LGA 1151
Cores/Threads
6/12
6/6
TDP
35 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
9216 kB
Date
April 2020
January 2019

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
i5-10400T
i5-9600KF
Test#1 (Integers)
4004
4629 (15.60%)
Test#2 (FP)
14189
19426 (36.90%)
Test#3 (Generic, ZIP)
4620
6169 (33.54%)
Test#1 (Memory)
11029
13817 (25.28%)
TOTAL
33842
44041 (30.14%)

Multithread

i5-10400T

i5-9600KF
Test#1 (Integers)
22767
26635 (16.99%)
Test#2 (FP)
96586
110107 (14.00%)
Test#3 (Generic, ZIP)
31652
33068 (4.47%)
Test#1 (Memory)
2451
8296 (238.48%)
TOTAL
153456
178106 (16.06%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i5-10400T
i5-9600KF
Test#1 (Integers)
12610
16497 (30.82%)
Test#2 (FP)
17941
24354 (35.74%)
Test#3 (Generic, ZIP)
4828
6542 (35.49%)
Test#1 (Memory)
10811
13590 (25.70%)
TOTAL
46191
60983 (32.02%)

Multithread

i5-10400T

i5-9600KF
Test#1 (Integers)
74617
93780 (25.68%)
Test#2 (FP)
119634
134467 (12.40%)
Test#3 (Generic, ZIP)
32645
32242 (-1.23%)
Test#1 (Memory)
2520
8222 (226.31%)
TOTAL
229416
268711 (17.13%)

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
i5-10400T
i5-9600KF
Test#1 (Integers)
12498
16923 (35.41%)
Test#2 (FP)
19053
25439 (33.52%)
Test#3 (Generic, ZIP)
4722
6360 (34.68%)
Test#1 (Memory)
10297
13250 (28.68%)
TOTAL
46570
61972 (33.07%)

Multithread

i5-10400T

i5-9600KF
Test#1 (Integers)
74581
95513 (28.07%)
Test#2 (FP)
126959
143192 (12.79%)
Test#3 (Generic, ZIP)
31762
33851 (6.58%)
Test#1 (Memory)
2497
8210 (228.79%)
TOTAL
235799
280767 (19.07%)

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
i5-10400T
i5-9600KF
Test#1 (Integers)
21999
30521 (38.74%)
Test#2 (FP)
19977
26538 (32.85%)
Test#3 (Generic, ZIP)
4566
6411 (40.41%)
Test#1 (Memory)
11306
13870 (22.68%)
TOTAL
57847
77340 (33.70%)

Multithread

i5-10400T

i5-9600KF
Test#1 (Integers)
136687
174659 (27.78%)
Test#2 (FP)
135254
154064 (13.91%)
Test#3 (Generic, ZIP)
32756
34111 (4.14%)
Test#1 (Memory)
2478
8243 (232.63%)
TOTAL
307175
371076 (20.80%)

Performance/W
i5-10400T
i5-9600KF
Test#1 (Integers)
3905 points/W
1839 points/W
Test#2 (FP)
3864 points/W
1622 points/W
Test#3 (Generic, ZIP)
936 points/W
359 points/W
Test#1 (Memory)
71 points/W
87 points/W
TOTAL
8776 points/W
3906 points/W

Performance/GHz
i5-10400T
i5-9600KF
Test#1 (Integers)
6111 points/GHz
6635 points/GHz
Test#2 (FP)
5549 points/GHz
5769 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1394 points/GHz
Test#1 (Memory)
3141 points/GHz
3015 points/GHz
TOTAL
16069 points/GHz
16813 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. 3.7.9