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Core i7-11700F vs i7-8700k


Description
The i7-11700F is based on Rocket Lake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i7-11700F gets a score of 512.3 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-11700F is 1.2 times faster than the i7-8700k. 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
2.5 GHz
3.7 GHz
Boost frecuency
4.9 GHz
4.7 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
8/16
6/12
TDP
65 W
95 W
Cache L1 (d+i)
8x32+8x48 kB
6x32+6x32 kB
Cache L2
8x512 kB
6x256 kB
Cache L3
16384 kB
12288 kB
Date
March 2021
October 2017
Mean monothread perf.
89.58k points
80.6k points
Mean multithread perf.
512.32k points
443.77k 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
i7-11700F
i7-8700k
Test#1 (Integers)
32.55k
31.2k (x0.96)
Test#2 (FP)
26.95k
27.82k (x1.03)
Test#3 (Generic, ZIP)
10.76k
6.57k (x0.61)
Test#1 (Memory)
19.32k
15k (x0.78)
TOTAL
89.58k
80.6k (x0.9)

Multithread

i7-11700F

i7-8700k
Test#1 (Integers)
232.06k
202.42k (x0.87)
Test#2 (FP)
203.56k
186.33k (x0.92)
Test#3 (Generic, ZIP)
72.89k
44.96k (x0.62)
Test#1 (Memory)
3.81k
10.05k (x2.64)
TOTAL
512.32k
443.77k (x0.87)

Performance/W
i7-11700F
i7-8700k
Test#1 (Integers)
3570 points/W
2131 points/W
Test#2 (FP)
3132 points/W
1961 points/W
Test#3 (Generic, ZIP)
1121 points/W
473 points/W
Test#1 (Memory)
59 points/W
106 points/W
TOTAL
7882 points/W
4671 points/W

Performance/GHz
i7-11700F
i7-8700k
Test#1 (Integers)
6642 points/GHz
6639 points/GHz
Test#2 (FP)
5500 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2196 points/GHz
1397 points/GHz
Test#1 (Memory)
3943 points/GHz
3192 points/GHz
TOTAL
18281 points/GHz
17148 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