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Core i9-10900K vs i9-10980XE


Description
The i9-10900K is based on Comet Lake architecture while the i9-10980XE is based on Cascade Lake.

Using the multithread performance as a reference, the i9-10900K gets a score of 685.6 k points while the i9-10980XE gets 1241.1 k points.

Summarizing, the i9-10980XE is 1.8 times faster than the i9-10900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0655
50657
Core
Comet Lake-S
Cascade Lake-X
Architecture
Base frecuency
3.7 GHz
3 GHz
Boost frecuency
5.2 GHz
4.8 GHz
Socket
LGA 1200
LGA 2066
Cores/Threads
10/20
18/36
TDP
125 W
165 W
Cache L1 (d+i)
10x32+10x32 kB
18x32+18x32 kB
Cache L2
10x256 kB
18x1024 kB
Cache L3
20480 kB
25344 kB
Date
April 2020
November 2019
Mean monothread perf.
80.41k points
68.33k points
Mean multithread perf.
685.65k points
1241.12k 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
i9-10900K
i9-10980XE
Test#1 (Integers)
19.5k
16.03k (x0.82)
Test#2 (FP)
28.01k
23.95k (x0.86)
Test#3 (Generic, ZIP)
7.45k
6.03k (x0.81)
Test#1 (Memory)
15.82k
9.37k (x0.59)
TOTAL
70.79k
55.38k (x0.78)

Multithread

i9-10900K

i9-10980XE
Test#1 (Integers)
194.49k
316.11k (x1.63)
Test#2 (FP)
312.59k
503.75k (x1.61)
Test#3 (Generic, ZIP)
89.14k
131.82k (x1.48)
Test#1 (Memory)
12.58k
22.24k (x1.77)
TOTAL
608.81k
973.92k (x1.6)

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
i9-10900K
i9-10980XE
Test#1 (Integers)
32.67k
29.53k (x0.9)
Test#2 (FP)
28.49k
22.59k (x0.79)
Test#3 (Generic, ZIP)
6.53k
5.99k (x0.92)
Test#1 (Memory)
12.72k
10.22k (x0.8)
TOTAL
80.41k
68.33k (x0.85)

Multithread

i9-10900K

i9-10980XE
Test#1 (Integers)
307.39k
587.06k (x1.91)
Test#2 (FP)
298.47k
496.41k (x1.66)
Test#3 (Generic, ZIP)
72.94k
134.66k (x1.85)
Test#1 (Memory)
6.85k
22.99k (x3.35)
TOTAL
685.65k
1241.12k (x1.81)

Performance/W
i9-10900K
i9-10980XE
Test#1 (Integers)
2459 points/W
3558 points/W
Test#2 (FP)
2388 points/W
3009 points/W
Test#3 (Generic, ZIP)
583 points/W
816 points/W
Test#1 (Memory)
55 points/W
139 points/W
TOTAL
5485 points/W
7522 points/W

Performance/GHz
i9-10900K
i9-10980XE
Test#1 (Integers)
6282 points/GHz
6153 points/GHz
Test#2 (FP)
5479 points/GHz
4707 points/GHz
Test#3 (Generic, ZIP)
1257 points/GHz
1248 points/GHz
Test#1 (Memory)
2445 points/GHz
2129 points/GHz
TOTAL
15463 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