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Core i7-7700K vs i7-3770K


Description
The i7-7700K is based on Kaby Lake architecture while the i7-3770K is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-7700K gets a score of 238 k points while the i7-3770K gets 139.6 k points.

Summarizing, the i7-7700K is 1.7 times faster than the i7-3770K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
306a9
Core
Kaby Lake-S
Ivy Bridge
Architecture
Base frecuency
4.2 GHz
3.5 GHz
Boost frecuency
4.5 GHz
3.9 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
4/8
4/8
TDP
95 W
77 W
Cache L1 (d+i)
32+32 kB
4x62+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
September 2016
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
i7-7700K
i7-3770K
Test#1 (Integers)
4629
3860 (-16.63%)
Test#2 (FP)
18925
10793 (-42.97%)
Test#3 (Generic, ZIP)
6221
4900 (-21.23%)
Test#1 (Memory)
13922
5507 (-60.44%)
TOTAL
43698
25061 (-42.65%)

Multithread

i7-7700K

i7-3770K
Test#1 (Integers)
18529
17168 (-7.35%)
Test#2 (FP)
86487
46248 (-46.53%)
Test#3 (Generic, ZIP)
28778
23669 (-17.75%)
Test#1 (Memory)
9674
10359 (7.08%)
TOTAL
143468
97443 (-32.08%)

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
i7-3770K
Test#1 (Integers)
17549
12886 (-26.57%)
Test#2 (FP)
27822
12374 (-55.52%)
Test#3 (Generic, ZIP)
6796
5010 (-26.27%)
Test#1 (Memory)
14832
5521 (-62.78%)
TOTAL
66999
35791 (-46.58%)

Multithread

i7-7700K

i7-3770K
Test#1 (Integers)
68395
51309 (-24.98%)
Test#2 (FP)
118805
57921 (-51.25%)
Test#3 (Generic, ZIP)
33336
23646 (-29.07%)
Test#1 (Memory)
17434
6685 (-61.65%)
TOTAL
237970
139560 (-41.35%)

Performance/W
i7-7700K
i7-3770K
Test#1 (Integers)
720 points/W
666 points/W
Test#2 (FP)
1251 points/W
752 points/W
Test#3 (Generic, ZIP)
351 points/W
307 points/W
Test#1 (Memory)
184 points/W
87 points/W
TOTAL
2505 points/W
1812 points/W

Performance/GHz
i7-7700K
i7-3770K
Test#1 (Integers)
3900 points/GHz
3304 points/GHz
Test#2 (FP)
6183 points/GHz
3173 points/GHz
Test#3 (Generic, ZIP)
1510 points/GHz
1285 points/GHz
Test#1 (Memory)
3296 points/GHz
1416 points/GHz
TOTAL
14889 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