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Core i5-8500 vs i7-7700


Description
The i5-8500 is based on Coffee Lake architecture while the i7-7700 is based on Kaby Lake.

Using the multithread performance as a reference, the i5-8500 gets a score of 307.5 k points while the i7-7700 gets 262.2 k points.

Summarizing, the i5-8500 is 1.2 times faster than the i7-7700 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
906e9
Core
Coffee Lake-S
Kaby Lake-S
Architecture
Base frecuency
3 GHz
3.6 GHz
Boost frecuency
4.1 GHz
4.2 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
4/8
TDP
65 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
9216 kB
8192 kB
Date
March 2018
September 2016

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
i5-8500
i7-7700
Test#1 (Integers)
4192
4303 (2.64%)
Test#2 (FP)
17378
17621 (1.40%)
Test#3 (Generic, ZIP)
5462
5536 (1.36%)
Test#1 (Memory)
11924
11726 (-1.67%)
TOTAL
38956
39185 (0.59%)

Multithread

i5-8500

i7-7700
Test#1 (Integers)
27672
16796 (-39.30%)
Test#2 (FP)
94071
78082 (-17.00%)
Test#3 (Generic, ZIP)
29055
26792 (-7.79%)
Test#1 (Memory)
4386
4103 (-6.45%)
TOTAL
155184
125773 (-18.95%)

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
i5-8500
i7-7700
Test#1 (Integers)
15208
15274 (0.44%)
Test#2 (FP)
22940
23432 (2.14%)
Test#3 (Generic, ZIP)
5538
5940 (7.27%)
Test#1 (Memory)
11389
10451 (-8.23%)
TOTAL
55075
55098 (0.04%)

Multithread

i5-8500

i7-7700
Test#1 (Integers)
79517
63017 (-20.75%)
Test#2 (FP)
107776
105046 (-2.53%)
Test#3 (Generic, ZIP)
31885
26438 (-17.09%)
Test#1 (Memory)
13367
4035 (-69.81%)
TOTAL
232546
198535 (-14.63%)

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
i5-8500
i7-7700
Test#1 (Integers)
27359
27175 (-0.67%)
Test#2 (FP)
24271
25094 (3.39%)
Test#3 (Generic, ZIP)
5691
5794 (1.81%)
Test#1 (Memory)
11765
12848 (9.20%)
TOTAL
69087
70911 (2.64%)

Multithread

i5-8500

i7-7700
Test#1 (Integers)
144773
120948 (-16.46%)
Test#2 (FP)
129040
109758 (-14.94%)
Test#3 (Generic, ZIP)
29526
27356 (-7.35%)
Test#1 (Memory)
4185
4133 (-1.24%)
TOTAL
307524
262195 (-14.74%)

Performance/W
i5-8500
i7-7700
Test#1 (Integers)
2227 points/W
1861 points/W
Test#2 (FP)
1985 points/W
1689 points/W
Test#3 (Generic, ZIP)
454 points/W
421 points/W
Test#1 (Memory)
64 points/W
64 points/W
TOTAL
4731 points/W
4034 points/W

Performance/GHz
i5-8500
i7-7700
Test#1 (Integers)
6673 points/GHz
6470 points/GHz
Test#2 (FP)
5920 points/GHz
5975 points/GHz
Test#3 (Generic, ZIP)
1388 points/GHz
1380 points/GHz
Test#1 (Memory)
2870 points/GHz
3059 points/GHz
TOTAL
16850 points/GHz
16884 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. 3.7.8