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Core i9-10940X vs i7-7700


Description
The i9-10940X is based on Cascade Lake architecture while the i7-7700 is based on Kaby Lake.

Using the multithread performance as a reference, the i9-10940X gets a score of 1088.1 k points while the i7-7700 gets 257.5 k points.

Summarizing, the i9-10940X is 4.2 times faster than the i7-7700 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50657
906e9
Core
Cascade Lake-X
Kaby Lake-S
Architecture
Base frecuency
3.3 GHz
3.6 GHz
Boost frecuency
4.8 GHz
4.2 GHz
Socket
LGA 2066
LGA 1151
Cores/Threads
14/28
4/8
TDP
165 W
65 W
Cache L1 (d+i)
14x32+14x32 kB
32+32 kB
Cache L2
14x1024 kB
256 kB
Cache L3
19712 kB
8192 kB
Date
November 2019
September 2016
Mean monothread perf.
72.04k points
67.33k points
Mean multithread perf.
1088.11k points
257.52k 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
i9-10940X
i7-7700
Test#1 (Integers)
29.75k
26.7k (x0.9)
Test#2 (FP)
27.44k
23.7k (x0.86)
Test#3 (Generic, ZIP)
5.81k
5.46k (x0.94)
Test#1 (Memory)
9.05k
11.48k (x1.27)
TOTAL
72.04k
67.33k (x0.93)

Multithread

i9-10940X

i7-7700
Test#1 (Integers)
485.37k
115.97k (x0.24)
Test#2 (FP)
472.7k
108.43k (x0.23)
Test#3 (Generic, ZIP)
113.09k
26.28k (x0.23)
Test#1 (Memory)
16.95k
6.85k (x0.4)
TOTAL
1088.11k
257.52k (x0.24)

Performance/W
i9-10940X
i7-7700
Test#1 (Integers)
2942 points/W
1784 points/W
Test#2 (FP)
2865 points/W
1668 points/W
Test#3 (Generic, ZIP)
685 points/W
404 points/W
Test#1 (Memory)
103 points/W
105 points/W
TOTAL
6595 points/W
3962 points/W

Performance/GHz
i9-10940X
i7-7700
Test#1 (Integers)
6197 points/GHz
6356 points/GHz
Test#2 (FP)
5717 points/GHz
5643 points/GHz
Test#3 (Generic, ZIP)
1210 points/GHz
1300 points/GHz
Test#1 (Memory)
1885 points/GHz
2733 points/GHz
TOTAL
15009 points/GHz
16032 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