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Core i7-8700k vs i7-3770K


Description
The i7-8700k is based on Coffee Lake architecture while the i7-3770K is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-8700k gets a score of 339.8 k points while the i7-3770K gets 139.6 k points.

Summarizing, the i7-8700k is 2.4 times faster than the i7-3770K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
306a9
Core
Coffee Lake-S
Ivy Bridge
Architecture
Base frecuency
3.7 GHz
3.5 GHz
Boost frecuency
4.7 GHz
3.9 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
6/12
4/8
TDP
95 W
77 W
Cache L1 (d+i)
6x32+6x32 kB
4x62+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
12288 kB
8192 kB
Date
October 2017
April 2012

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
i7-8700k
i7-3770K
Test#1 (Integers)
4127
3860 (-6.48%)
Test#2 (FP)
16959
10793 (-36.36%)
Test#3 (Generic, ZIP)
5564
4900 (-11.93%)
Test#1 (Memory)
12845
5507 (-57.13%)
TOTAL
39495
25061 (-36.55%)

Multithread

i7-8700k

i7-3770K
Test#1 (Integers)
24011
17168 (-28.50%)
Test#2 (FP)
108690
46248 (-57.45%)
Test#3 (Generic, ZIP)
36616
23669 (-35.36%)
Test#1 (Memory)
9327
10359 (11.07%)
TOTAL
178644
97443 (-45.45%)

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
i7-8700k
i7-3770K
Test#1 (Integers)
16874
12886 (-23.63%)
Test#2 (FP)
26119
12374 (-52.62%)
Test#3 (Generic, ZIP)
6329
5010 (-20.84%)
Test#1 (Memory)
13708
5521 (-59.73%)
TOTAL
63030
35791 (-43.22%)

Multithread

i7-8700k

i7-3770K
Test#1 (Integers)
105740
51309 (-51.48%)
Test#2 (FP)
180520
57921 (-67.91%)
Test#3 (Generic, ZIP)
44994
23646 (-47.45%)
Test#1 (Memory)
8512
6685 (-21.46%)
TOTAL
339766
139560 (-58.92%)

Performance/W
i7-8700k
i7-3770K
Test#1 (Integers)
1113 points/W
666 points/W
Test#2 (FP)
1900 points/W
752 points/W
Test#3 (Generic, ZIP)
474 points/W
307 points/W
Test#1 (Memory)
90 points/W
87 points/W
TOTAL
3576 points/W
1812 points/W

Performance/GHz
i7-8700k
i7-3770K
Test#1 (Integers)
3590 points/GHz
3304 points/GHz
Test#2 (FP)
5557 points/GHz
3173 points/GHz
Test#3 (Generic, ZIP)
1347 points/GHz
1285 points/GHz
Test#1 (Memory)
2917 points/GHz
1416 points/GHz
TOTAL
13411 points/GHz
9177 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