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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
Mean monothread perf.
80.6k points
68.33k points
Mean multithread perf.
443.77k points
1241.12k 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
i7-8700k
i9-10980XE
Test#1 (Integers)
4.13k
4.52k (x1.1)
Test#2 (FP)
16.96k
17.94k (x1.06)
Test#3 (Generic, ZIP)
5.56k
5.5k (x0.99)
Test#1 (Memory)
12.85k
9.64k (x0.75)
TOTAL
39.5k
37.6k (x0.95)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
24.01k
84.93k (x3.54)
Test#2 (FP)
108.69k
409.55k (x3.77)
Test#3 (Generic, ZIP)
36.62k
122.88k (x3.36)
Test#1 (Memory)
9.33k
22.12k (x2.37)
TOTAL
178.64k
639.48k (x3.58)

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)
12.92k
16.03k (x1.24)
Test#2 (FP)
20.68k
23.95k (x1.16)
Test#3 (Generic, ZIP)
5.3k
6.03k (x1.14)
Test#1 (Memory)
12.59k
9.37k (x0.74)
TOTAL
51.48k
55.38k (x1.08)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
94.26k
316.11k (x3.35)
Test#2 (FP)
152.55k
503.75k (x3.3)
Test#3 (Generic, ZIP)
39.74k
131.82k (x3.32)
Test#1 (Memory)
8.53k
22.24k (x2.61)
TOTAL
295.07k
973.92k (x3.3)

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)
16.87k
16.4k (x0.97)
Test#2 (FP)
26.12k
20.97k (x0.8)
Test#3 (Generic, ZIP)
6.33k
5.82k (x0.92)
Test#1 (Memory)
13.71k
8.86k (x0.65)
TOTAL
63.03k
52.05k (x0.83)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
105.74k
316.84k (x3)
Test#2 (FP)
180.52k
461.09k (x2.55)
Test#3 (Generic, ZIP)
44.99k
129.82k (x2.89)
Test#1 (Memory)
8.51k
22.09k (x2.6)
TOTAL
339.77k
929.85k (x2.74)

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)
31.2k
29.53k (x0.95)
Test#2 (FP)
27.82k
22.59k (x0.81)
Test#3 (Generic, ZIP)
6.57k
5.99k (x0.91)
Test#1 (Memory)
15k
10.22k (x0.68)
TOTAL
80.6k
68.33k (x0.85)

Multithread

i7-8700k

i9-10980XE
Test#1 (Integers)
202.42k
587.06k (x2.9)
Test#2 (FP)
186.33k
496.41k (x2.66)
Test#3 (Generic, ZIP)
44.96k
134.66k (x3)
Test#1 (Memory)
10.05k
22.99k (x2.29)
TOTAL
443.77k
1241.12k (x2.8)

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. 3.11.4