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Core i5-9600K vs i5-10400T


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

Using the multithread performance as a reference, the i5-9600K gets a score of 372.7 k points while the i5-10400T gets 307.2 k points.

Summarizing, the i5-9600K 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
906ed
a0653
Core
Coffee Lake-S
Comet Lake-S
Architecture
Base frecuency
3.7 GHz
2 GHz
Boost frecuency
4.6 GHz
3.6 GHz
Socket
LGA 1151
FC-LGA 1200
Cores/Threads
6/6
6/12
TDP
95 W
35 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
9216 kB
12288 kB
Date
October 2018
April 2020
Mean monothread perf.
77.75k points
57.85k points
Mean multithread perf.
372.74k points
307.18k 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
i5-9600K
i5-10400T
Test#1 (Integers)
4.69k
4k (x0.85)
Test#2 (FP)
19.35k
14.19k (x0.73)
Test#3 (Generic, ZIP)
6.08k
4.62k (x0.76)
Test#1 (Memory)
13.81k
11.03k (x0.8)
TOTAL
43.93k
33.84k (x0.77)

Multithread

i5-9600K

i5-10400T
Test#1 (Integers)
26.24k
22.77k (x0.87)
Test#2 (FP)
107.95k
96.59k (x0.89)
Test#3 (Generic, ZIP)
34.5k
31.65k (x0.92)
Test#1 (Memory)
8.1k
2.45k (x0.3)
TOTAL
176.79k
153.46k (x0.87)

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
i5-9600K
i5-10400T
Test#1 (Integers)
16.91k
12.61k (x0.75)
Test#2 (FP)
24.42k
17.94k (x0.73)
Test#3 (Generic, ZIP)
6.37k
4.83k (x0.76)
Test#1 (Memory)
13.55k
10.81k (x0.8)
TOTAL
61.25k
46.19k (x0.75)

Multithread

i5-9600K

i5-10400T
Test#1 (Integers)
95.21k
74.62k (x0.78)
Test#2 (FP)
137.3k
119.63k (x0.87)
Test#3 (Generic, ZIP)
36.05k
32.65k (x0.91)
Test#1 (Memory)
8.4k
2.52k (x0.3)
TOTAL
276.96k
229.42k (x0.83)

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
i5-9600K
i5-10400T
Test#1 (Integers)
16.75k
12.5k (x0.75)
Test#2 (FP)
25.5k
19.05k (x0.75)
Test#3 (Generic, ZIP)
6.17k
4.72k (x0.77)
Test#1 (Memory)
13.06k
10.3k (x0.79)
TOTAL
61.48k
46.57k (x0.76)

Multithread

i5-9600K

i5-10400T
Test#1 (Integers)
96.03k
74.58k (x0.78)
Test#2 (FP)
143.78k
126.96k (x0.88)
Test#3 (Generic, ZIP)
35.06k
31.76k (x0.91)
Test#1 (Memory)
8.45k
2.5k (x0.3)
TOTAL
283.33k
235.8k (x0.83)

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
i5-9600K
i5-10400T
Test#1 (Integers)
30.64k
22k (x0.72)
Test#2 (FP)
26.75k
19.98k (x0.75)
Test#3 (Generic, ZIP)
6.33k
4.57k (x0.72)
Test#1 (Memory)
14.03k
11.31k (x0.81)
TOTAL
77.75k
57.85k (x0.74)

Multithread

i5-9600K

i5-10400T
Test#1 (Integers)
174.92k
136.69k (x0.78)
Test#2 (FP)
153.88k
135.25k (x0.88)
Test#3 (Generic, ZIP)
35.93k
32.76k (x0.91)
Test#1 (Memory)
8k
2.48k (x0.31)
TOTAL
372.74k
307.18k (x0.82)

Performance/W
i5-9600K
i5-10400T
Test#1 (Integers)
1841 points/W
3905 points/W
Test#2 (FP)
1620 points/W
3864 points/W
Test#3 (Generic, ZIP)
378 points/W
936 points/W
Test#1 (Memory)
84 points/W
71 points/W
TOTAL
3924 points/W
8776 points/W

Performance/GHz
i5-9600K
i5-10400T
Test#1 (Integers)
6661 points/GHz
6111 points/GHz
Test#2 (FP)
5815 points/GHz
5549 points/GHz
Test#3 (Generic, ZIP)
1376 points/GHz
1268 points/GHz
Test#1 (Memory)
3049 points/GHz
3141 points/GHz
TOTAL
16902 points/GHz
16069 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