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Core i5-8500T vs i5-8500


Description
Both models i5-8500T 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 i5-8500T gets a score of 251.8 k points while the i5-8500 gets 307.5 k points.

Summarizing, the i5-8500 is 1.2 times faster than the i5-8500T. 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
2.1 GHz
3 GHz
Boost frecuency
3.5 GHz
4.1 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
6/6
TDP
35 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
March 2018
March 2018
Mean monothread perf.
59.27k points
69.09k points
Mean multithread perf.
251.82k 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
i5-8500T
i5-8500
Test#1 (Integers)
3.56k
4.19k (x1.18)
Test#2 (FP)
14.76k
17.38k (x1.18)
Test#3 (Generic, ZIP)
4.46k
5.46k (x1.23)
Test#1 (Memory)
8.72k
11.92k (x1.37)
TOTAL
31.5k
38.96k (x1.24)

Multithread

i5-8500T

i5-8500
Test#1 (Integers)
19.37k
27.67k (x1.43)
Test#2 (FP)
82.35k
94.07k (x1.14)
Test#3 (Generic, ZIP)
24.6k
29.05k (x1.18)
Test#1 (Memory)
2.97k
4.39k (x1.48)
TOTAL
129.29k
155.18k (x1.2)

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
i5-8500T
i5-8500
Test#1 (Integers)
12.93k
15.22k (x1.18)
Test#2 (FP)
18.61k
22.02k (x1.18)
Test#3 (Generic, ZIP)
4.76k
5.75k (x1.21)
Test#1 (Memory)
10.05k
12.17k (x1.21)
TOTAL
46.36k
55.17k (x1.19)

Multithread

i5-8500T

i5-8500
Test#1 (Integers)
71.15k
87.78k (x1.23)
Test#2 (FP)
102.74k
126.73k (x1.23)
Test#3 (Generic, ZIP)
26.6k
32.93k (x1.24)
Test#1 (Memory)
2.9k
4.22k (x1.45)
TOTAL
203.39k
251.65k (x1.24)

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
i5-8500T
i5-8500
Test#1 (Integers)
12.92k
15.21k (x1.18)
Test#2 (FP)
19.47k
22.94k (x1.18)
Test#3 (Generic, ZIP)
4.62k
5.54k (x1.2)
Test#1 (Memory)
9.6k
11.39k (x1.19)
TOTAL
46.6k
55.07k (x1.18)

Multithread

i5-8500T

i5-8500
Test#1 (Integers)
71.25k
79.52k (x1.12)
Test#2 (FP)
91.16k
107.78k (x1.18)
Test#3 (Generic, ZIP)
24.45k
31.89k (x1.3)
Test#1 (Memory)
2.85k
13.37k (x4.69)
TOTAL
189.71k
232.55k (x1.23)

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
i5-8500T
i5-8500
Test#1 (Integers)
23.13k
27.36k (x1.18)
Test#2 (FP)
20.7k
24.27k (x1.17)
Test#3 (Generic, ZIP)
4.71k
5.69k (x1.21)
Test#1 (Memory)
10.73k
11.77k (x1.1)
TOTAL
59.27k
69.09k (x1.17)

Multithread

i5-8500T

i5-8500
Test#1 (Integers)
125.17k
144.77k (x1.16)
Test#2 (FP)
98.07k
129.04k (x1.32)
Test#3 (Generic, ZIP)
25.57k
29.53k (x1.15)
Test#1 (Memory)
3.01k
4.18k (x1.39)
TOTAL
251.82k
307.52k (x1.22)

Performance/W
i5-8500T
i5-8500
Test#1 (Integers)
3576 points/W
2227 points/W
Test#2 (FP)
2802 points/W
1985 points/W
Test#3 (Generic, ZIP)
731 points/W
454 points/W
Test#1 (Memory)
86 points/W
64 points/W
TOTAL
7195 points/W
4731 points/W

Performance/GHz
i5-8500T
i5-8500
Test#1 (Integers)
6608 points/GHz
6673 points/GHz
Test#2 (FP)
5914 points/GHz
5920 points/GHz
Test#3 (Generic, ZIP)
1346 points/GHz
1388 points/GHz
Test#1 (Memory)
3067 points/GHz
2870 points/GHz
TOTAL
16934 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