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Core i7-8700k


Performance
443.8k points

Description
The Core i7-8700k is a cpu manufactured by Intel that was released on October 2017. This model has 6 Coffee Lake-S cores with HyperThreading, runs at 3700 MHz as base frequency and has a a thermal design power of 95 W.

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.

Specs
Official name
Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
CPUID
906ea
Core
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
Boost frecuency
4.7 GHz
Socket
LGA 1151
Cores/Threads
6/12
TDP
95 W
Cache L1 (d+i)
6x32+6x32 kB
Cache L2
6x256 kB
Cache L3
12288 kB
Release date
October 2017
Mean monothread perf.
80.6k points
Mean multithread perf.
443.77k 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
Multithread
Test#1 (Integers)
4.13k
24.01k (x5.8)
Test#2 (FP)
16.96k
108.69k (x6.4)
Test#3 (Generic, ZIP)
5.56k
36.62k (x6.6)
Test#1 (Memory)
12.85k
9.33k (x0.7)
TOTAL
39.5k
178.64k (x4.5)

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
Multithread
Test#1 (Integers)
12.92k
94.26k (x7.3)
Test#2 (FP)
20.68k
152.55k (x7.4)
Test#3 (Generic, ZIP)
5.3k
39.74k (x7.5)
Test#1 (Memory)
12.59k
8.53k (x0.7)
TOTAL
51.48k
295.07k (x5.7)

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
Multithread
Test#1 (Integers)
16.87k
105.74k (x6.3)
Test#2 (FP)
26.12k
180.52k (x6.9)
Test#3 (Generic, ZIP)
6.33k
44.99k (x7.1)
Test#1 (Memory)
13.71k
8.51k (x0.6)
TOTAL
63.03k
339.77k (x5.4)

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
Multithread
Test#1 (Integers)
31.2k
202.42k (x6.5)
Test#2 (FP)
27.82k
186.33k (x6.7)
Test#3 (Generic, ZIP)
6.57k
44.96k (x6.8)
Test#1 (Memory)
15k
10.05k (x0.7)
TOTAL
80.6k
443.77k (x5.5)

Motherboards where this CPU was tested
Model
Chipset
Release date
Intel Z370
N/A
Intel Z370
N/A

RAM models tested along with this CPU
Model
Type
Frequency
Size
DDR4
3904 MHz
8 GB
DDR4
2667 MHz
16 GB
DDR4
2133 MHz
4 GB

Overclocking
User
Frequency
Motherboard
1 Xevipiu
5808 MHz
ROG MAXIMUS X HERO
2 Xevipiu
5428 MHz
ROG MAXIMUS X HERO
3 Xevipiu
5418 MHz
ROG MAXIMUS X HERO
4 Magog
5280 MHz
ROG STRIX Z370-F GAMING
5 Magog
5078 MHz
ROG STRIX Z370-F GAMING

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) [% vs time]

grafica bm.hardlimit.com


Test#2 (FP) [% vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [% vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [% 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) [% vs time]

grafica bm.hardlimit.coma


Test#2 (FP) [% vs time]

grafica bm.hardlimit.coma


Test#3 (Generic, ZIP) [% vs time]

grafica bm.hardlimit.coma


Test#1 (Memory) [% vs time]

grafica bm.hardlimit.coma

Similar CPUs to Core i7-8700k
Core i7-8700k (This model)
 Mode FPU monothread  [39.5k points]
 Mode FPU multithread  [178.64k points]
 Mode AVX2 monothread  [80.6k points]
 Mode AVX2 multithread  [443.77k points]
 Mode FPU monothread  [43.93k points +11.23%]
 Mode FPU multithread  [176.79k points -1.04%]
 Mode AVX2 monothread  [77.75k points -3.53%]
 Mode AVX2 multithread  [372.74k points -16.01%]
 Mode FPU monothread  [42.12k points +6.64%]
 Mode FPU multithread  [202.61k points +13.42%]
 Mode AVX2 monothread  [75.82k points -5.92%]
 Mode AVX2 multithread  [403.36k points -9.10%]
 Mode FPU monothread  [42.82k points +8.42%]
 Mode FPU multithread  [191.54k points +7.22%]
 Mode AVX2 monothread  [75.27k points -6.61%]
 Mode AVX2 multithread  [387.99k points -12.57%]
 Mode FPU monothread  [44.9k points +13.68%]
 Mode FPU multithread  [240.71k points +34.74%]
 Mode AVX2 monothread  [79.2k points -1.73%]
 Mode AVX2 multithread  [487.05k points +9.75%]
 Mode FPU monothread  [45.53k points +15.29%]
 Mode FPU multithread  [266.82k points +49.36%]
 Mode AVX2 monothread  [81.91k points +1.63%]
 Mode AVX2 multithread  [529.32k points +19.28%]
 Mode FPU monothread  [44.04k points +11.51%]
 Mode FPU multithread  [178.11k points -0.30%]
 Mode AVX2 monothread  [77.34k points -4.04%]
 Mode AVX2 multithread  [371.08k points -16.38%]
 Mode FPU monothread  [41.26k points +4.47%]
 Mode FPU multithread  [191.41k points +7.14%]
 Mode AVX2 monothread  [72.1k points -10.54%]
 Mode AVX2 multithread  [378.99k points -14.60%]
 Mode FPU monothread  [43.7k points +10.64%]
 Mode FPU multithread  [143.47k points -19.69%]
 Mode AVX2 monothread  [78.24k points -2.93%]
 Mode AVX2 multithread  [292.03k points -34.19%]
 Mode FPU monothread  [49.98k points +26.54%]
 Mode FPU multithread  [161.65k points -9.51%]
 Mode AVX2 monothread  [93.54k points +16.05%]
 Mode AVX2 multithread  [330.62k points -25.50%]
 Mode FPU monothread  [36.32k points -8.04%]
 Mode FPU multithread  [145.37k points -18.62%]
 Mode AVX2 monothread  [49.24k points -38.91%]
 Mode AVX2 multithread  [289.3k points -34.81%]
          
FPU mode comparison

Monothread integers operations
Model
Score
4.19k [1.57%]
4.14k [0.43%]
Intel Core i7-8700k
4.13k
This model
4.11k [-0.41%]
4.08k [-1.08%]
4.05k [-1.88%]
4.01k [-2.83%]

Multithread integers operations
Model
Score
26.31k [9.57%]
26.24k [9.28%]
25.26k [5.21%]
24.75k [3.09%]
Intel Core i7-8700k
24.01k
This model
22.77k [-5.18%]
22.68k [-5.54%]
22.17k [-7.66%]
22.11k [-7.92%]
22.03k [-8.24%]

Monothread floating point operations
Model
Score
17.26k [1.79%]
17.22k [1.52%]
17.21k [1.51%]
17.16k [1.21%]
16.99k [0.18%]
Intel Core i7-8700k
16.96k
This model
16.76k [-1.18%]
16.69k [-1.56%]
16.62k [-2.00%]
16.56k [-2.33%]
16.42k [-3.17%]

Multithread floating point operations
Model
Score
151.01k [38.94%]
124.94k [14.95%]
120.48k [10.84%]
118.16k [8.71%]
110.11k [1.30%]
Intel Core i7-8700k
108.69k
This model
108.04k [-0.59%]
107.95k [-0.69%]
105.18k [-3.23%]
103.1k [-5.15%]
101.79k [-6.35%]

Monothread generic test (Zip compression)
Model
Score
5.77k [3.70%]
5.58k [0.20%]
Intel Core i7-8700k
5.56k
This model
5.46k [-1.84%]
5.39k [-3.11%]
5.34k [-4.05%]

Multithread generic test (Zip compression)
Model
Score
50.13k [36.90%]
46.49k [26.98%]
43.23k [18.07%]
38.43k [4.95%]
38.12k [4.11%]
Intel Core i7-8700k
36.62k
This model
35.18k [-3.92%]
34.56k [-5.62%]
34.5k [-5.77%]
34.5k [-5.78%]
34.13k [-6.80%]

Monothread memory performance
Model
Score
13.81k [7.49%]
13.78k [7.24%]
13.49k [4.99%]
13.45k [4.73%]
13.01k [1.28%]
Intel Core i7-8700k
12.85k
This model
12.63k [-1.70%]
12.61k [-1.83%]
12.55k [-2.33%]
12.23k [-4.81%]
12.13k [-5.55%]

Multithread memory performance
Model
Score
10.36k [11.07%]
Intel Core i7-8700k
9.33k
This model
8.98k [-3.76%]
8.96k [-3.90%]
8.96k [-3.94%]
8.94k [-4.10%]
          
SSE mode comparison

Monothread integers operations
Model
Score
13.1k [1.42%]
13.01k [0.71%]
12.93k [0.09%]
12.93k [0.09%]
12.93k [0.06%]
Intel Core i7-8700k
12.92k
This model
12.9k [-0.12%]
12.89k [-0.25%]
12.86k [-0.50%]
12.82k [-0.75%]
12.78k [-1.07%]

Multithread integers operations
Model
Score
116.68k [23.79%]
100.94k [7.09%]
96.91k [2.81%]
95.21k [1.01%]
Intel Core i7-8700k
94.26k
This model
93.78k [-0.51%]
92.79k [-1.56%]
92.61k [-1.76%]
90.44k [-4.05%]
87.78k [-6.87%]

Monothread floating point operations
Model
Score
21.69k [4.87%]
20.73k [0.26%]
20.7k [0.12%]
Intel Core i7-8700k
20.68k
This model
20.59k [-0.43%]
20.55k [-0.64%]
20.09k [-2.83%]
20.03k [-3.15%]
20.01k [-3.21%]

Multithread floating point operations
Model
Score
196.66k [28.92%]
195.06k [27.87%]
187.28k [22.77%]
159.09k [4.28%]
Intel Core i7-8700k
152.55k
This model
149.1k [-2.26%]
147.68k [-3.20%]
137.3k [-10.00%]
135.13k [-11.42%]
135.12k [-11.43%]

Monothread generic test (Zip compression)
Model
Score
5.41k [2.08%]
5.33k [0.67%]
Intel Core i7-8700k
5.3k
This model
5.28k [-0.25%]
5.27k [-0.47%]
5.23k [-1.16%]
5.19k [-1.90%]
5.19k [-1.99%]

Multithread generic test (Zip compression)
Model
Score
53.2k [33.89%]
51.52k [29.65%]
43.61k [9.76%]
40.71k [2.45%]
Intel Core i7-8700k
39.74k
This model
39.68k [-0.15%]
36.61k [-7.87%]
36.05k [-9.28%]
35.6k [-10.40%]
33.85k [-14.81%]

Monothread memory performance
Model
Score
13.59k [7.97%]
13.55k [7.62%]
13.43k [6.74%]
13.24k [5.20%]
12.79k [1.63%]
Intel Core i7-8700k
12.59k
This model
12.52k [-0.50%]
12.49k [-0.76%]
12.17k [-3.27%]
11.41k [-9.37%]
11.09k [-11.91%]

Multithread memory performance
Model
Score
Intel Core i7-8700k
8.53k
This model
8.43k [-1.19%]
8.39k [-1.61%]
8.22k [-3.58%]
8.04k [-5.71%]
          
AVX mode comparison

Monothread integers operations
Model
Score
17.52k [3.85%]
16.95k [0.48%]
16.92k [0.29%]
Intel Core i7-8700k
16.87k
This model
16.76k [-0.69%]
16.75k [-0.75%]
16.71k [-0.96%]
16.57k [-1.78%]

Multithread integers operations
Model
Score
125.9k [19.06%]
122.01k [15.38%]
120.59k [14.04%]
119.5k [13.01%]
117.03k [10.67%]
Intel Core i7-8700k
105.74k
This model
102.11k [-3.43%]
101.85k [-3.68%]
97.37k [-7.92%]
96.03k [-9.18%]
95.51k [-9.67%]

Monothread floating point operations
Model
Score
27.04k [3.52%]
26.74k [2.37%]
26.41k [1.11%]
Intel Core i7-8700k
26.12k
This model
25.74k [-1.46%]
25.52k [-2.30%]
25.5k [-2.38%]
25.45k [-2.54%]
25.44k [-2.60%]

Multithread floating point operations
Model
Score
199.88k [10.72%]
198.79k [10.12%]
198.51k [9.97%]
197.34k [9.32%]
Intel Core i7-8700k
180.52k
This model
176.85k [-2.03%]
172.03k [-4.70%]
170.31k [-5.66%]
158.71k [-12.08%]
156.5k [-13.30%]

Monothread generic test (Zip compression)
Model
Score
Intel Core i7-8700k
6.33k
This model
6.22k [-1.75%]
6.17k [-2.49%]
6.06k [-4.18%]
6.01k [-4.98%]
5.99k [-5.32%]

Multithread generic test (Zip compression)
Model
Score
54.43k [20.97%]
54.12k [20.29%]
52.45k [16.57%]
50.64k [12.55%]
Intel Core i7-8700k
44.99k
This model
43.12k [-4.16%]
42.59k [-5.34%]
42.08k [-6.48%]
39.84k [-11.46%]
38.76k [-13.86%]

Monothread memory performance
Model
Score
17.14k [25.06%]
16.61k [21.18%]
14.72k [7.40%]
Intel Core i7-8700k
13.71k
This model
13.64k [-0.50%]
13.6k [-0.79%]
13.33k [-2.79%]
13.25k [-3.34%]
13.21k [-3.62%]

Multithread memory performance
Model
Score
Intel Core i7-8700k
8.51k
This model
8.45k [-0.69%]
8.23k [-3.32%]
8.21k [-3.54%]
          
AVX2 mode comparison

Monothread integers operations
Model
Score
32.65k [4.63%]
32.55k [4.30%]
32.08k [2.82%]
31.66k [1.47%]
31.54k [1.06%]
Intel Core i7-8700k
31.2k
This model
31.16k [-0.15%]
30.78k [-1.37%]
30.66k [-1.74%]
30.64k [-1.80%]
30.52k [-2.19%]

Multithread integers operations
Model
Score
217.77k [7.58%]
216.18k [6.80%]
215.61k [6.52%]
210.36k [3.92%]
Intel Core i7-8700k
202.42k
This model
187.73k [-7.26%]
187.43k [-7.41%]
184.19k [-9.01%]
183.54k [-9.33%]
181.66k [-10.25%]

Monothread floating point operations
Model
Score
29.24k [5.09%]
28.99k [4.22%]
28.17k [1.25%]
28.13k [1.09%]
27.95k [0.45%]
Intel Core i7-8700k
27.82k
This model
27.78k [-0.14%]
27.44k [-1.37%]
27.17k [-2.33%]
26.95k [-3.13%]
26.92k [-3.26%]

Multithread floating point operations
Model
Score
200.56k [7.64%]
198.36k [6.46%]
195.79k [5.08%]
192.46k [3.29%]
190.46k [2.21%]
Intel Core i7-8700k
186.33k
This model
182.53k [-2.04%]
181.2k [-2.76%]
180.75k [-3.00%]
178.56k [-4.17%]
168.1k [-9.79%]

Monothread generic test (Zip compression)
Model
Score
7.1k [8.13%]
Intel Core i7-8700k
6.57k
This model
6.55k [-0.31%]
6.51k [-0.88%]
6.41k [-2.38%]
6.33k [-3.61%]

Multithread generic test (Zip compression)
Model
Score
48.47k [7.82%]
45.95k [2.21%]
45.32k [0.80%]
Intel Core i7-8700k
44.96k
This model
43.51k [-3.21%]
43.09k [-4.16%]
42.46k [-5.56%]
41.8k [-7.02%]

Monothread memory performance
Model
Score
15.44k [2.90%]
15.43k [2.86%]
15.38k [2.49%]
15.34k [2.24%]
15.22k [1.45%]
Intel Core i7-8700k
15k
This model
14.98k [-0.18%]
14.78k [-1.50%]
14.46k [-3.65%]
14.37k [-4.25%]
14.19k [-5.44%]

Multithread memory performance
Model
Score
10.97k [9.08%]
10.75k [6.90%]
10.64k [5.81%]
10.29k [2.31%]
10.15k [0.92%]
Intel Core i7-8700k
10.05k
This model
9.62k [-4.31%]
9.53k [-5.26%]

Hardlimit Benchmark Central - Ver. 3.11.3