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Core i7-6700 vs i9-10900X


Description
The i7-6700 is based on Skylake architecture while the i9-10900X is based on Cascade Lake.

Using the multithread performance as a reference, the i7-6700 gets a score of 243.4 k points while the i9-10900X gets 632.4 k points.

Summarizing, the i9-10900X is 2.6 times faster than the i7-6700 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
50657
Core
Skylake-S
Cascade Lake-X
Architecture
Base frecuency
3.4 GHz
3.7 GHz
Boost frecuency
4 GHz
4.7 GHz
Socket
LGA 1151
LGA 2066
Cores/Threads
4/8
10/20
TDP
65 W
165 W
Cache L1 (d+i)
4x32+4x32 kB
10x32+10x32 kB
Cache L2
256 kB
10x1024 kB
Cache L3
8192 kB
19712 kB
Date
May 2015
November 2019
Mean monothread perf.
57.76k points
62.28k points
Mean multithread perf.
243.4k points
632.35k points

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
i7-6700
i9-10900X
Test#1 (Integers)
24.83k
25.97k (x1.05)
Test#2 (FP)
21.82k
22.37k (x1.03)
Test#3 (Generic, ZIP)
4.98k
5.3k (x1.07)
Test#1 (Memory)
6.14k
8.63k (x1.4)
TOTAL
57.76k
62.28k (x1.08)

Multithread

i7-6700

i9-10900X
Test#1 (Integers)
109.79k
281.98k (x2.57)
Test#2 (FP)
102.39k
259.01k (x2.53)
Test#3 (Generic, ZIP)
24.72k
64.87k (x2.62)
Test#1 (Memory)
6.51k
26.5k (x4.07)
TOTAL
243.4k
632.35k (x2.6)

Performance/W
i7-6700
i9-10900X
Test#1 (Integers)
1689 points/W
1709 points/W
Test#2 (FP)
1575 points/W
1570 points/W
Test#3 (Generic, ZIP)
380 points/W
393 points/W
Test#1 (Memory)
100 points/W
161 points/W
TOTAL
3745 points/W
3832 points/W

Performance/GHz
i7-6700
i9-10900X
Test#1 (Integers)
6206 points/GHz
5526 points/GHz
Test#2 (FP)
5456 points/GHz
4760 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1128 points/GHz
Test#1 (Memory)
1535 points/GHz
1835 points/GHz
TOTAL
14441 points/GHz
13250 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