| | | |

Core i7-7700K vs i5-8500T


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

Using the multithread performance as a reference, the i7-7700K gets a score of 291.1 k points while the i5-8500T gets 251.8 k points.

Summarizing, the i7-7700K 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
906e9
906ea
Core
Kaby Lake-S
Coffee Lake-S
Architecture
Base frecuency
4.2 GHz
2.1 GHz
Boost frecuency
4.5 GHz
3.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/8
6/6
TDP
95 W
35 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
September 2016
March 2018

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
i7-7700K
i5-8500T
Test#1 (Integers)
4629
3559 (-23.11%)
Test#2 (FP)
18925
14758 (-22.02%)
Test#3 (Generic, ZIP)
6221
4457 (-28.35%)
Test#1 (Memory)
13922
8723 (-37.35%)
TOTAL
43698
31497 (-27.92%)

Multithread

i7-7700K

i5-8500T
Test#1 (Integers)
18529
19371 (4.54%)
Test#2 (FP)
86487
82354 (-4.78%)
Test#3 (Generic, ZIP)
28778
24602 (-14.51%)
Test#1 (Memory)
9674
2967 (-69.33%)
TOTAL
143468
129295 (-9.88%)

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
i7-7700K
i5-8500T
Test#1 (Integers)
17549
12920 (-26.38%)
Test#2 (FP)
27822
19465 (-30.04%)
Test#3 (Generic, ZIP)
6796
4620 (-32.01%)
Test#1 (Memory)
14832
9597 (-35.29%)
TOTAL
66999
46603 (-30.44%)

Multithread

i7-7700K

i5-8500T
Test#1 (Integers)
68395
71250 (4.17%)
Test#2 (FP)
118805
91157 (-23.27%)
Test#3 (Generic, ZIP)
33336
24448 (-26.66%)
Test#1 (Memory)
17434
2851 (-83.65%)
TOTAL
237970
189705 (-20.28%)

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
i7-7700K
i5-8500T
Test#1 (Integers)
30864
23129 (-25.06%)
Test#2 (FP)
27262
20698 (-24.08%)
Test#3 (Generic, ZIP)
6421
4710 (-26.65%)
Test#1 (Memory)
13994
10734 (-23.30%)
TOTAL
78541
59270 (-24.54%)

Multithread

i7-7700K

i5-8500T
Test#1 (Integers)
129531
125168 (-3.37%)
Test#2 (FP)
122200
98070 (-19.75%)
Test#3 (Generic, ZIP)
29617
25570 (-13.67%)
Test#1 (Memory)
9751
3015 (-69.08%)
TOTAL
291099
251822 (-13.49%)

Performance/W
i7-7700K
i5-8500T
Test#1 (Integers)
1363 points/W
3576 points/W
Test#2 (FP)
1286 points/W
2802 points/W
Test#3 (Generic, ZIP)
312 points/W
731 points/W
Test#1 (Memory)
103 points/W
86 points/W
TOTAL
3064 points/W
7195 points/W

Performance/GHz
i7-7700K
i5-8500T
Test#1 (Integers)
6859 points/GHz
6608 points/GHz
Test#2 (FP)
6058 points/GHz
5914 points/GHz
Test#3 (Generic, ZIP)
1427 points/GHz
1346 points/GHz
Test#1 (Memory)
3110 points/GHz
3067 points/GHz
TOTAL
17453 points/GHz
16934 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. 3.7.9