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Core i5-7500 vs i7-7700K


Description
Both models i5-7500 and i7-7700K are based on Kaby Lake architecture.

The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.

Using the multithread performance as a reference, the i5-7500 gets a score of 191.7 k points while the i7-7700K gets 289.8 k points.

Summarizing, the i7-7700K is 1.5 times faster than the i5-7500 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906e9
Core
Kaby Lake-S
Kaby Lake-S
Architecture
Base frecuency
3.4 GHz
4.2 GHz
Boost frecuency
3.8 GHz
4.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
4/8
TDP
65 W
95 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
September 2016
September 2016
Mean monothread perf.
61.51k points
76.9k points
Mean multithread perf.
191.71k points
289.82k 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
i5-7500
i7-7700K
Test#1 (Integers)
3.87k
4.63k (x1.2)
Test#2 (FP)
16.09k
18.92k (x1.18)
Test#3 (Generic, ZIP)
5.11k
6.22k (x1.22)
Test#1 (Memory)
7.97k
13.92k (x1.75)
TOTAL
33.04k
43.7k (x1.32)

Multithread

i5-7500

i7-7700K
Test#1 (Integers)
14.81k
18.53k (x1.25)
Test#2 (FP)
61.51k
86.49k (x1.41)
Test#3 (Generic, ZIP)
19.59k
28.78k (x1.47)
Test#1 (Memory)
3.68k
9.67k (x2.63)
TOTAL
99.59k
143.47k (x1.44)

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
i5-7500
i7-7700K
Test#1 (Integers)
14.03k
17.55k (x1.25)
Test#2 (FP)
21.07k
27.82k (x1.32)
Test#3 (Generic, ZIP)
5.15k
6.8k (x1.32)
Test#1 (Memory)
7.77k
14.83k (x1.91)
TOTAL
48.03k
67k (x1.4)

Multithread

i5-7500

i7-7700K
Test#1 (Integers)
50.12k
68.4k (x1.36)
Test#2 (FP)
74.8k
118.8k (x1.59)
Test#3 (Generic, ZIP)
19.69k
33.34k (x1.69)
Test#1 (Memory)
5.19k
17.43k (x3.36)
TOTAL
149.79k
237.97k (x1.59)

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
i5-7500
i7-7700K
Test#1 (Integers)
25.59k
30.44k (x1.19)
Test#2 (FP)
22.57k
26.91k (x1.19)
Test#3 (Generic, ZIP)
5.27k
6.25k (x1.18)
Test#1 (Memory)
8.08k
13.3k (x1.65)
TOTAL
61.51k
76.9k (x1.25)

Multithread

i5-7500

i7-7700K
Test#1 (Integers)
88.3k
127.73k (x1.45)
Test#2 (FP)
78.59k
123.68k (x1.57)
Test#3 (Generic, ZIP)
19.72k
29.34k (x1.49)
Test#1 (Memory)
5.1k
9.08k (x1.78)
TOTAL
191.71k
289.82k (x1.51)

Performance/W
i5-7500
i7-7700K
Test#1 (Integers)
1358 points/W
1345 points/W
Test#2 (FP)
1209 points/W
1302 points/W
Test#3 (Generic, ZIP)
303 points/W
309 points/W
Test#1 (Memory)
79 points/W
96 points/W
TOTAL
2949 points/W
3051 points/W

Performance/GHz
i5-7500
i7-7700K
Test#1 (Integers)
6734 points/GHz
6765 points/GHz
Test#2 (FP)
5939 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
1387 points/GHz
1388 points/GHz
Test#1 (Memory)
2125 points/GHz
2955 points/GHz
TOTAL
16186 points/GHz
17089 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