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Core i5-11400T vs i7-8700k


Description
The i5-11400T is based on Rocket Lake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i5-11400T gets a score of 67.1 k points while the i7-8700k gets 178.6 k points.

Summarizing, the i7-8700k is 2.7 times faster than the i5-11400T. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
906ea
Core
Rocket Lake-S
Coffee Lake-S
Architecture
Base frecuency
1.3 GHz
3.7 GHz
Boost frecuency
3.7 GHz
4.7 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
6/12
6/12
TDP
35 W
95 W
Cache L1 (d+i)
6x32+6x48 kB
6x32+6x32 kB
Cache L2
6x512 kB
6x256 kB
Cache L3
12288 kB
12288 kB
Date
March 2021
October 2017
Mean monothread perf.
31.39k points
80.6k points
Mean multithread perf.
67.1k points
443.77k 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
i5-11400T
i7-8700k
Test#1 (Integers)
3.51k
4.13k (x1.18)
Test#2 (FP)
14.2k
16.96k (x1.19)
Test#3 (Generic, ZIP)
7.63k
5.56k (x0.73)
Test#1 (Memory)
6.06k
12.85k (x2.12)
TOTAL
31.39k
39.5k (x1.26)

Multithread

i5-11400T

i7-8700k
Test#1 (Integers)
7.4k
24.01k (x3.25)
Test#2 (FP)
31.37k
108.69k (x3.47)
Test#3 (Generic, ZIP)
18.11k
36.62k (x2.02)
Test#1 (Memory)
10.23k
9.33k (x0.91)
TOTAL
67.1k
178.64k (x2.66)

Performance/W
i5-11400T
i7-8700k
Test#1 (Integers)
211 points/W
253 points/W
Test#2 (FP)
896 points/W
1144 points/W
Test#3 (Generic, ZIP)
518 points/W
385 points/W
Test#1 (Memory)
292 points/W
98 points/W
TOTAL
1917 points/W
1880 points/W

Performance/GHz
i5-11400T
i7-8700k
Test#1 (Integers)
948 points/GHz
878 points/GHz
Test#2 (FP)
3838 points/GHz
3608 points/GHz
Test#3 (Generic, ZIP)
2062 points/GHz
1184 points/GHz
Test#1 (Memory)
1637 points/GHz
2733 points/GHz
TOTAL
8485 points/GHz
8403 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