Core i7-9700K vs i7-8700
Description
Both models i7-9700K and i7-8700 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 i7-9700K gets a score of 494.4 k points while the i7-8700 gets 374.1 k points.
Summarizing, the i7-9700K is 1.3 times faster than the i7-8700. 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 i7-9700K gets a score of 494.4 k points while the i7-8700 gets 374.1 k points.
Summarizing, the i7-9700K is 1.3 times faster than the i7-8700. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
906ea
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
3.6 GHz
3.2 GHz
Boost frecuency
4.9 GHz
4.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/8
6/12
TDP
95 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
12288 kB
12288 kB
Date
October 2018
October 2017
Mean monothread perf.
81.96k points
73.69k points
Mean multithread perf.
494.38k points
374.06k 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
i7-9700K
i7-8700
Test#1 (Integers)
4.97k
4.48k (x0.9)
Test#2 (FP)
17.98k
18.31k (x1.02)
Test#3 (Generic, ZIP)
5.89k
5.88k (x1)
Test#1 (Memory)
14.49k
13.45k (x0.93)
TOTAL
43.32k
42.12k (x0.97)
Multithread
i7-9700K
i7-8700
Test#1 (Integers)
37.81k
27.35k (x0.72)
Test#2 (FP)
138.05k
124.94k (x0.91)
Test#3 (Generic, ZIP)
41.78k
43.23k (x1.03)
Test#1 (Memory)
7.13k
7.08k (x0.99)
TOTAL
224.77k
202.61k (x0.9)
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
i7-9700K
i7-8700
Test#1 (Integers)
17.94k
16.45k (x0.92)
Test#2 (FP)
25.66k
23.74k (x0.92)
Test#3 (Generic, ZIP)
6.46k
6.24k (x0.97)
Test#1 (Memory)
14.52k
13.43k (x0.93)
TOTAL
64.58k
59.86k (x0.93)
Multithread
i7-9700K
i7-8700
Test#1 (Integers)
136.23k
100.94k (x0.74)
Test#2 (FP)
191.58k
159.09k (x0.83)
Test#3 (Generic, ZIP)
44.51k
43.61k (x0.98)
Test#1 (Memory)
7.25k
6.59k (x0.91)
TOTAL
379.56k
310.23k (x0.82)
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
i7-9700K
i7-8700
Test#1 (Integers)
17.43k
16.57k (x0.95)
Test#2 (FP)
26.9k
25.52k (x0.95)
Test#3 (Generic, ZIP)
6.24k
6.01k (x0.96)
Test#1 (Memory)
14.12k
12.82k (x0.91)
TOTAL
64.69k
60.92k (x0.94)
Multithread
i7-9700K
i7-8700
Test#1 (Integers)
134.6k
101.85k (x0.76)
Test#2 (FP)
191.15k
170.31k (x0.89)
Test#3 (Generic, ZIP)
42.84k
43.12k (x1.01)
Test#1 (Memory)
7.25k
7.11k (x0.98)
TOTAL
375.84k
322.39k (x0.86)
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
i7-9700K
i7-8700
Test#1 (Integers)
32.45k
28.97k (x0.89)
Test#2 (FP)
28.3k
25.65k (x0.91)
Test#3 (Generic, ZIP)
6.27k
5.93k (x0.94)
Test#1 (Memory)
14.93k
13.15k (x0.88)
TOTAL
81.96k
73.69k (x0.9)
Multithread
i7-9700K
i7-8700
Test#1 (Integers)
244.31k
173.36k (x0.71)
Test#2 (FP)
199.72k
156.27k (x0.78)
Test#3 (Generic, ZIP)
43.15k
37k (x0.86)
Test#1 (Memory)
7.2k
7.44k (x1.03)
TOTAL
494.38k
374.06k (x0.76)
Performance/W
i7-9700K
i7-8700
Test#1 (Integers)
2572 points/W
2667 points/W
Test#2 (FP)
2102 points/W
2404 points/W
Test#3 (Generic, ZIP)
454 points/W
569 points/W
Test#1 (Memory)
76 points/W
114 points/W
TOTAL
5204 points/W
5755 points/W
Performance/GHz
i7-9700K
i7-8700
Test#1 (Integers)
6623 points/GHz
6299 points/GHz
Test#2 (FP)
5776 points/GHz
5576 points/GHz
Test#3 (Generic, ZIP)
1281 points/GHz
1288 points/GHz
Test#1 (Memory)
3047 points/GHz
2858 points/GHz
TOTAL
16726 points/GHz
16021 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