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Core i7-8700 vs i9-10900K


Description
The i7-8700 is based on Coffee Lake architecture while the i9-10900K is based on Comet Lake.

Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i9-10900K gets 685.6 k points.

Summarizing, the i9-10900K is 1.8 times faster than the i7-8700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
a0655
Core
Coffee Lake-S
Comet Lake-S
Architecture
Base frecuency
3.2 GHz
3.7 GHz
Boost frecuency
4.6 GHz
5.2 GHz
Socket
LGA 1151
LGA 1200
Cores/Threads
6/12
10/20
TDP
65 W
125 W
Cache L1 (d+i)
6x32+6x32 kB
10x32+10x32 kB
Cache L2
6x256 kB
10x256 kB
Cache L3
12288 kB
20480 kB
Date
October 2017
April 2020
Mean monothread perf.
75.01k points
80.41k points
Mean multithread perf.
388.95k points
685.65k points

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
i7-8700
i9-10900K
Test#1 (Integers)
16.45k
19.5k (x1.19)
Test#2 (FP)
23.74k
28.01k (x1.18)
Test#3 (Generic, ZIP)
6.24k
7.45k (x1.19)
Test#1 (Memory)
13.43k
15.82k (x1.18)
TOTAL
59.86k
70.79k (x1.18)

Multithread

i7-8700

i9-10900K
Test#1 (Integers)
100.94k
194.49k (x1.93)
Test#2 (FP)
159.09k
312.59k (x1.96)
Test#3 (Generic, ZIP)
43.61k
89.14k (x2.04)
Test#1 (Memory)
6.59k
12.58k (x1.91)
TOTAL
310.23k
608.81k (x1.96)

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
i7-8700
i9-10900K
Test#1 (Integers)
29.25k
32.67k (x1.12)
Test#2 (FP)
25.98k
28.49k (x1.1)
Test#3 (Generic, ZIP)
6.05k
6.53k (x1.08)
Test#1 (Memory)
13.74k
12.72k (x0.93)
TOTAL
75.01k
80.41k (x1.07)

Multithread

i7-8700

i9-10900K
Test#1 (Integers)
182.56k
307.39k (x1.68)
Test#2 (FP)
159.9k
298.47k (x1.87)
Test#3 (Generic, ZIP)
38.18k
72.94k (x1.91)
Test#1 (Memory)
8.31k
6.85k (x0.82)
TOTAL
388.95k
685.65k (x1.76)

Performance/W
i7-8700
i9-10900K
Test#1 (Integers)
2809 points/W
2459 points/W
Test#2 (FP)
2460 points/W
2388 points/W
Test#3 (Generic, ZIP)
587 points/W
583 points/W
Test#1 (Memory)
128 points/W
55 points/W
TOTAL
5984 points/W
5485 points/W

Performance/GHz
i7-8700
i9-10900K
Test#1 (Integers)
6358 points/GHz
6282 points/GHz
Test#2 (FP)
5647 points/GHz
5479 points/GHz
Test#3 (Generic, ZIP)
1316 points/GHz
1257 points/GHz
Test#1 (Memory)
2986 points/GHz
2445 points/GHz
TOTAL
16307 points/GHz
15463 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