Core i7-8700 vs i5-8500
Description
Both models i7-8700 and i5-8500 are based on Coffee Lake architecture.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i5-8500 gets 307.5 k points.
Summarizing, the i7-8700 is 1.3 times faster than the i5-8500. To get a proper comparison between both models, take a look to the data shown below.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i5-8500 gets 307.5 k points.
Summarizing, the i7-8700 is 1.3 times faster than the i5-8500. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906ea
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
3.2 GHz
3 GHz
Boost frecuency
4.6 GHz
4.1 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/12
6/6
TDP
65 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
9216 kB
Date
October 2017
March 2018
Mean monothread perf.
75.01k points
69.09k points
Mean multithread perf.
388.95k points
307.52k 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
i7-8700
i5-8500
Test#1 (Integers)
4.48k
4.19k (x0.94)
Test#2 (FP)
18.31k
17.38k (x0.95)
Test#3 (Generic, ZIP)
5.88k
5.46k (x0.93)
Test#1 (Memory)
13.45k
11.92k (x0.89)
TOTAL
42.12k
38.96k (x0.92)
Multithread
i7-8700
i5-8500
Test#1 (Integers)
27.35k
27.67k (x1.01)
Test#2 (FP)
124.94k
94.07k (x0.75)
Test#3 (Generic, ZIP)
43.23k
29.05k (x0.67)
Test#1 (Memory)
7.08k
4.39k (x0.62)
TOTAL
202.61k
155.18k (x0.77)
SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-8700
i5-8500
Test#1 (Integers)
16.45k
15.22k (x0.93)
Test#2 (FP)
23.74k
22.02k (x0.93)
Test#3 (Generic, ZIP)
6.24k
5.75k (x0.92)
Test#1 (Memory)
13.43k
12.17k (x0.91)
TOTAL
59.86k
55.17k (x0.92)
Multithread
i7-8700
i5-8500
Test#1 (Integers)
100.94k
87.78k (x0.87)
Test#2 (FP)
159.09k
126.73k (x0.8)
Test#3 (Generic, ZIP)
43.61k
32.93k (x0.75)
Test#1 (Memory)
6.59k
4.22k (x0.64)
TOTAL
310.23k
251.65k (x0.81)
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
i7-8700
i5-8500
Test#1 (Integers)
16.57k
15.21k (x0.92)
Test#2 (FP)
25.52k
22.94k (x0.9)
Test#3 (Generic, ZIP)
6.01k
5.54k (x0.92)
Test#1 (Memory)
12.82k
11.39k (x0.89)
TOTAL
60.92k
55.07k (x0.9)
Multithread
i7-8700
i5-8500
Test#1 (Integers)
101.85k
79.52k (x0.78)
Test#2 (FP)
170.31k
107.78k (x0.63)
Test#3 (Generic, ZIP)
43.12k
31.89k (x0.74)
Test#1 (Memory)
7.11k
13.37k (x1.88)
TOTAL
322.39k
232.55k (x0.72)
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
i7-8700
i5-8500
Test#1 (Integers)
29.25k
27.36k (x0.94)
Test#2 (FP)
25.98k
24.27k (x0.93)
Test#3 (Generic, ZIP)
6.05k
5.69k (x0.94)
Test#1 (Memory)
13.74k
11.77k (x0.86)
TOTAL
75.01k
69.09k (x0.92)
Multithread
i7-8700
i5-8500
Test#1 (Integers)
182.56k
144.77k (x0.79)
Test#2 (FP)
159.9k
129.04k (x0.81)
Test#3 (Generic, ZIP)
38.18k
29.53k (x0.77)
Test#1 (Memory)
8.31k
4.18k (x0.5)
TOTAL
388.95k
307.52k (x0.79)
Performance/W
i7-8700
i5-8500
Test#1 (Integers)
2809 points/W
2227 points/W
Test#2 (FP)
2460 points/W
1985 points/W
Test#3 (Generic, ZIP)
587 points/W
454 points/W
Test#1 (Memory)
128 points/W
64 points/W
TOTAL
5984 points/W
4731 points/W
Performance/GHz
i7-8700
i5-8500
Test#1 (Integers)
6358 points/GHz
6673 points/GHz
Test#2 (FP)
5647 points/GHz
5920 points/GHz
Test#3 (Generic, ZIP)
1316 points/GHz
1388 points/GHz
Test#1 (Memory)
2986 points/GHz
2870 points/GHz
TOTAL
16307 points/GHz
16850 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4