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Core i7-8700k vs i9-10980XE


Description
The i7-8700k is based on Coffee Lake architecture while the i9-10980XE is based on Cascade Lake.

Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the i9-10980XE gets 1241.1 k points.

Summarizing, the i9-10980XE is 2.8 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
50657
Core
Coffee Lake-S
Cascade Lake-X
Architecture
Base frecuency
3.7 GHz
3 GHz
Boost frecuency
4.7 GHz
4.8 GHz
Socket
LGA 1151
LGA 2066
Cores/Threads
6/12
18/36
TDP
95 W
165 W
Cache L1 (d+i)
6x32+6x32 kB
18x32+18x32 kB
Cache L2
6x256 kB
18x1024 kB
Cache L3
12288 kB
25344 kB
Date
October 2017
November 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
i7-8700k
i9-10980XE
Test#1 (Integers)
4127
4523 (9.61%)
Test#2 (FP)
16959
17938 (5.77%)
Test#3 (Generic, ZIP)
5564
5498 (-1.18%)
Test#1 (Memory)
12845
9641 (-24.94%)
TOTAL
39495
37600 (-4.80%)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
24011
84933 (253.72%)
Test#2 (FP)
108690
409552 (276.81%)
Test#3 (Generic, ZIP)
36616
122879 (235.59%)
Test#1 (Memory)
9327
22119 (137.16%)
TOTAL
178644
639483 (257.96%)

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
i7-8700k
i9-10980XE
Test#1 (Integers)
12920
16032 (24.09%)
Test#2 (FP)
20678
23952 (15.83%)
Test#3 (Generic, ZIP)
5295
6028 (13.84%)
Test#1 (Memory)
12587
9368 (-25.57%)
TOTAL
51480
55379 (7.58%)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
94259
316109 (235.36%)
Test#2 (FP)
152549
503748 (230.22%)
Test#3 (Generic, ZIP)
39735
131822 (231.75%)
Test#1 (Memory)
8527
22242 (160.83%)
TOTAL
295071
973920 (230.06%)

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
i7-8700k
i9-10980XE
Test#1 (Integers)
16874
16400 (-2.81%)
Test#2 (FP)
26119
20974 (-19.70%)
Test#3 (Generic, ZIP)
6329
5822 (-8.01%)
Test#1 (Memory)
13708
8857 (-35.39%)
TOTAL
63030
52052 (-17.42%)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
105740
316838 (199.64%)
Test#2 (FP)
180520
461091 (155.42%)
Test#3 (Generic, ZIP)
44994
129824 (188.54%)
Test#1 (Memory)
8512
22093 (159.56%)
TOTAL
339766
929846 (173.67%)

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
i7-8700k
i9-10980XE
Test#1 (Integers)
31204
29534 (-5.35%)
Test#2 (FP)
27821
22593 (-18.79%)
Test#3 (Generic, ZIP)
6568
5989 (-8.80%)
Test#1 (Memory)
15004
10217 (-31.91%)
TOTAL
80598
68333 (-15.22%)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
202422
587058 (190.02%)
Test#2 (FP)
186332
496409 (166.41%)
Test#3 (Generic, ZIP)
44958
134663 (199.53%)
Test#1 (Memory)
10054
22986 (128.63%)
TOTAL
443765
1241116 (179.68%)

Performance/W
i7-8700k
i9-10980XE
Test#1 (Integers)
2131 points/W
3558 points/W
Test#2 (FP)
1961 points/W
3009 points/W
Test#3 (Generic, ZIP)
473 points/W
816 points/W
Test#1 (Memory)
106 points/W
139 points/W
TOTAL
4671 points/W
7522 points/W

Performance/GHz
i7-8700k
i9-10980XE
Test#1 (Integers)
6639 points/GHz
6153 points/GHz
Test#2 (FP)
5919 points/GHz
4707 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
1248 points/GHz
Test#1 (Memory)
3192 points/GHz
2129 points/GHz
TOTAL
17148 points/GHz
14236 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