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Core i7-7700K vs i9-10980XE


Description
The i7-7700K is based on Kaby Lake architecture while the i9-10980XE is based on Cascade Lake.

Using the multithread performance as a reference, the i7-7700K gets a score of 291.1 k points while the i9-10980XE gets 1241.1 k points.

Summarizing, the i9-10980XE is 4.3 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
50657
Core
Kaby Lake-S
Cascade Lake-X
Architecture
Base frecuency
4.2 GHz
3 GHz
Boost frecuency
4.5 GHz
4.8 GHz
Socket
LGA 1151
LGA 2066
Cores/Threads
4/8
18/36
TDP
95 W
165 W
Cache L1 (d+i)
32+32 kB
18x32+18x32 kB
Cache L2
256 kB
18x1024 kB
Cache L3
8192 kB
25344 kB
Date
September 2016
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
i7-7700K
i9-10980XE
Test#1 (Integers)
4629
4523 (-2.29%)
Test#2 (FP)
18925
17938 (-5.21%)
Test#3 (Generic, ZIP)
6221
5498 (-11.62%)
Test#1 (Memory)
13922
9641 (-30.75%)
TOTAL
43698
37600 (-13.95%)

Multithread

i7-7700K

i9-10980XE
Test#1 (Integers)
18529
84933 (358.37%)
Test#2 (FP)
86487
409552 (373.54%)
Test#3 (Generic, ZIP)
28778
122879 (326.99%)
Test#1 (Memory)
9674
22119 (128.64%)
TOTAL
143468
639483 (345.73%)

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
i7-7700K
i9-10980XE
Test#1 (Integers)
17549
16400 (-6.55%)
Test#2 (FP)
27822
20974 (-24.62%)
Test#3 (Generic, ZIP)
6796
5822 (-14.33%)
Test#1 (Memory)
14832
8857 (-40.29%)
TOTAL
66999
52052 (-22.31%)

Multithread

i7-7700K

i9-10980XE
Test#1 (Integers)
68395
316838 (363.25%)
Test#2 (FP)
118805
461091 (288.11%)
Test#3 (Generic, ZIP)
33336
129824 (289.44%)
Test#1 (Memory)
17434
22093 (26.73%)
TOTAL
237970
929846 (290.74%)

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
i7-7700K
i9-10980XE
Test#1 (Integers)
30864
29534 (-4.31%)
Test#2 (FP)
27262
22593 (-17.13%)
Test#3 (Generic, ZIP)
6421
5989 (-6.72%)
Test#1 (Memory)
13994
10217 (-26.99%)
TOTAL
78541
68333 (-13.00%)

Multithread

i7-7700K

i9-10980XE
Test#1 (Integers)
129531
587058 (353.22%)
Test#2 (FP)
122200
496409 (306.23%)
Test#3 (Generic, ZIP)
29617
134663 (354.68%)
Test#1 (Memory)
9751
22986 (135.72%)
TOTAL
291099
1241116 (326.36%)

Performance/W
i7-7700K
i9-10980XE
Test#1 (Integers)
1363 points/W
3558 points/W
Test#2 (FP)
1286 points/W
3009 points/W
Test#3 (Generic, ZIP)
312 points/W
816 points/W
Test#1 (Memory)
103 points/W
139 points/W
TOTAL
3064 points/W
7522 points/W

Performance/GHz
i7-7700K
i9-10980XE
Test#1 (Integers)
6859 points/GHz
6153 points/GHz
Test#2 (FP)
6058 points/GHz
4707 points/GHz
Test#3 (Generic, ZIP)
1427 points/GHz
1248 points/GHz
Test#1 (Memory)
3110 points/GHz
2129 points/GHz
TOTAL
17453 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