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Core i5-9500 vs i5-8500


Description
Both models i5-9500 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 i5-9500 gets a score of 352.8 k points while the i5-8500 gets 307.5 k points.

Summarizing, the i5-9500 is 1.1 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
Architecture
Base frecuency
3 GHz
3 GHz
Boost frecuency
4.4 GHz
4.1 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
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
9216 kB
9216 kB
Date
April 2019
March 2018
Mean monothread perf.
73.65k points
69.09k points
Mean multithread perf.
352.84k 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
i5-9500
i5-8500
Test#1 (Integers)
4.45k
4.19k (x0.94)
Test#2 (FP)
18.43k
17.38k (x0.94)
Test#3 (Generic, ZIP)
5.84k
5.46k (x0.94)
Test#1 (Memory)
12.63k
11.92k (x0.94)
TOTAL
41.34k
38.96k (x0.94)

Multithread

i5-9500

i5-8500
Test#1 (Integers)
24.75k
27.67k (x1.12)
Test#2 (FP)
103.1k
94.07k (x0.91)
Test#3 (Generic, ZIP)
32.43k
29.05k (x0.9)
Test#1 (Memory)
5.56k
4.39k (x0.79)
TOTAL
165.85k
155.18k (x0.94)

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
i5-9500
i5-8500
Test#1 (Integers)
16.06k
15.22k (x0.95)
Test#2 (FP)
23.19k
22.02k (x0.95)
Test#3 (Generic, ZIP)
6.1k
5.75k (x0.94)
Test#1 (Memory)
12.79k
12.17k (x0.95)
TOTAL
58.14k
55.17k (x0.95)

Multithread

i5-9500

i5-8500
Test#1 (Integers)
90.44k
87.78k (x0.97)
Test#2 (FP)
131.23k
126.73k (x0.97)
Test#3 (Generic, ZIP)
33.85k
32.93k (x0.97)
Test#1 (Memory)
5.59k
4.22k (x0.75)
TOTAL
261.11k
251.65k (x0.96)

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
i5-9500
i5-8500
Test#1 (Integers)
16.14k
15.21k (x0.94)
Test#2 (FP)
24.18k
22.94k (x0.95)
Test#3 (Generic, ZIP)
5.87k
5.54k (x0.94)
Test#1 (Memory)
12.5k
11.39k (x0.91)
TOTAL
58.69k
55.07k (x0.94)

Multithread

i5-9500

i5-8500
Test#1 (Integers)
92.21k
79.52k (x0.86)
Test#2 (FP)
137.92k
107.78k (x0.78)
Test#3 (Generic, ZIP)
33.12k
31.89k (x0.96)
Test#1 (Memory)
5.56k
13.37k (x2.4)
TOTAL
268.8k
232.55k (x0.87)

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
i5-9500
i5-8500
Test#1 (Integers)
29.17k
27.36k (x0.94)
Test#2 (FP)
25.49k
24.27k (x0.95)
Test#3 (Generic, ZIP)
5.84k
5.69k (x0.97)
Test#1 (Memory)
13.15k
11.77k (x0.89)
TOTAL
73.65k
69.09k (x0.94)

Multithread

i5-9500

i5-8500
Test#1 (Integers)
166.66k
144.77k (x0.87)
Test#2 (FP)
146.9k
129.04k (x0.88)
Test#3 (Generic, ZIP)
34.04k
29.53k (x0.87)
Test#1 (Memory)
5.25k
4.18k (x0.8)
TOTAL
352.84k
307.52k (x0.87)

Performance/W
i5-9500
i5-8500
Test#1 (Integers)
2564 points/W
2227 points/W
Test#2 (FP)
2260 points/W
1985 points/W
Test#3 (Generic, ZIP)
524 points/W
454 points/W
Test#1 (Memory)
81 points/W
64 points/W
TOTAL
5428 points/W
4731 points/W

Performance/GHz
i5-9500
i5-8500
Test#1 (Integers)
6629 points/GHz
6673 points/GHz
Test#2 (FP)
5793 points/GHz
5920 points/GHz
Test#3 (Generic, ZIP)
1327 points/GHz
1388 points/GHz
Test#1 (Memory)
2990 points/GHz
2870 points/GHz
TOTAL
16739 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.


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