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Core i9-7980XE vs i5-5675R


Description
The i9-7980XE is based on Skylake architecture while the i5-5675R is based on Broadwell.

Using the multithread performance as a reference, the i9-7980XE gets a score of 1223.8 k points while the i5-5675R gets 194.2 k points.

Summarizing, the i9-7980XE is 6.3 times faster than the i5-5675R. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50654
40671
Core
Skylake-X
Bradwell-H
Architecture
Base frecuency
2.6 GHz
3.1 GHz
Boost frecuency
4.4 GHz
3.6 GHz
Socket
LGA 2066
BGA1364
Cores/Threads
18/36
4/4
TDP
165 W
65 W
Cache L1 (d+i)
18x32+18x32 kB
4x32+4x32 kB
Cache L2
18x1024 kB
4x256 kB
Cache L3
25344 kB
4096 kB
Date
May 2017
June 2015
Mean monothread perf.
76.43k points
51.43k points
Mean multithread perf.
1223.79k points
194.2k 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
i9-7980XE
i5-5675R
Test#1 (Integers)
4.89k
4.14k (x0.85)
Test#2 (FP)
19.98k
14.35k (x0.72)
Test#3 (Generic, ZIP)
6.14k
4.94k (x0.8)
Test#1 (Memory)
9.81k
5.47k (x0.56)
TOTAL
40.82k
28.91k (x0.71)

Multithread

i9-7980XE

i5-5675R
Test#1 (Integers)
79.8k
16.02k (x0.2)
Test#2 (FP)
372.72k
54.6k (x0.15)
Test#3 (Generic, ZIP)
121.42k
18.69k (x0.15)
Test#1 (Memory)
26.48k
16.87k (x0.64)
TOTAL
600.43k
106.18k (x0.18)

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
i9-7980XE
i5-5675R
Test#1 (Integers)
31.16k
21.91k (x0.7)
Test#2 (FP)
28.13k
18.59k (x0.66)
Test#3 (Generic, ZIP)
6.65k
5.2k (x0.78)
Test#1 (Memory)
10.5k
5.72k (x0.55)
TOTAL
76.43k
51.43k (x0.67)

Multithread

i9-7980XE

i5-5675R
Test#1 (Integers)
560.19k
84.92k (x0.15)
Test#2 (FP)
516.97k
72.09k (x0.14)
Test#3 (Generic, ZIP)
123.94k
20.13k (x0.16)
Test#1 (Memory)
22.69k
17.07k (x0.75)
TOTAL
1223.79k
194.2k (x0.16)

Performance/W
i9-7980XE
i5-5675R
Test#1 (Integers)
3395 points/W
1306 points/W
Test#2 (FP)
3133 points/W
1109 points/W
Test#3 (Generic, ZIP)
751 points/W
310 points/W
Test#1 (Memory)
137 points/W
263 points/W
TOTAL
7417 points/W
2988 points/W

Performance/GHz
i9-7980XE
i5-5675R
Test#1 (Integers)
7081 points/GHz
6087 points/GHz
Test#2 (FP)
6392 points/GHz
5164 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
1445 points/GHz
Test#1 (Memory)
2386 points/GHz
1590 points/GHz
TOTAL
17371 points/GHz
14286 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