| | | | | | |

Core i9-9900K vs i9-10980XE


Description
The i9-9900K is based on Coffee Lake architecture while the i9-10980XE is based on Cascade Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i9-10980XE gets 1241.1 k points.

Summarizing, the i9-10980XE is 2.3 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
50657
Core
Coffee Lake-S
Cascade Lake-X
Architecture
Base frecuency
3.6 GHz
3 GHz
Boost frecuency
5 GHz
4.8 GHz
Socket
LGA 1151
LGA 2066
Cores/Threads
8/16
18/36
TDP
95 W
165 W
Cache L1 (d+i)
8x32+8x32 kB
18x32+18x32 kB
Cache L2
8x256 kB
18x1024 kB
Cache L3
16384 kB
25344 kB
Date
October 2018
November 2019
Mean monothread perf.
86.24k points
68.33k points
Mean multithread perf.
545.3k 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
i9-9900K
i9-10980XE
Test#1 (Integers)
5.17k
4.52k (x0.87)
Test#2 (FP)
21.15k
17.94k (x0.85)
Test#3 (Generic, ZIP)
7.01k
5.5k (x0.78)
Test#1 (Memory)
15.32k
9.64k (x0.63)
TOTAL
48.66k
37.6k (x0.77)

Multithread

i9-9900K

i9-10980XE
Test#1 (Integers)
38.45k
84.93k (x2.21)
Test#2 (FP)
155.68k
409.55k (x2.63)
Test#3 (Generic, ZIP)
51k
122.88k (x2.41)
Test#1 (Memory)
18.26k
22.12k (x1.21)
TOTAL
263.38k
639.48k (x2.43)

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
i9-9900K
i9-10980XE
Test#1 (Integers)
33.62k
29.53k (x0.88)
Test#2 (FP)
30.02k
22.59k (x0.75)
Test#3 (Generic, ZIP)
7.17k
5.99k (x0.84)
Test#1 (Memory)
15.43k
10.22k (x0.66)
TOTAL
86.24k
68.33k (x0.79)

Multithread

i9-9900K

i9-10980XE
Test#1 (Integers)
248.93k
587.06k (x2.36)
Test#2 (FP)
224.43k
496.41k (x2.21)
Test#3 (Generic, ZIP)
53.39k
134.66k (x2.52)
Test#1 (Memory)
18.54k
22.99k (x1.24)
TOTAL
545.3k
1241.12k (x2.28)

Performance/W
i9-9900K
i9-10980XE
Test#1 (Integers)
2620 points/W
3558 points/W
Test#2 (FP)
2362 points/W
3009 points/W
Test#3 (Generic, ZIP)
562 points/W
816 points/W
Test#1 (Memory)
195 points/W
139 points/W
TOTAL
5740 points/W
7522 points/W

Performance/GHz
i9-9900K
i9-10980XE
Test#1 (Integers)
6724 points/GHz
6153 points/GHz
Test#2 (FP)
6003 points/GHz
4707 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
1248 points/GHz
Test#1 (Memory)
3087 points/GHz
2129 points/GHz
TOTAL
17247 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