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Core i7-7700K vs i7-3930K


Description
The i7-7700K is based on Kaby Lake architecture while the i7-3930K is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-7700K gets a score of 238 k points while the i7-3930K gets 164.3 k points.

Summarizing, the i7-7700K is 1.4 times faster than the i7-3930K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
206d7
Core
Kaby Lake-S
Sandy Bridge-E
Architecture
Base frecuency
4.2 GHz
3.2 GHz
Boost frecuency
4.5 GHz
3.8 GHz
Socket
LGA 1151
LGA 2011
Cores/Threads
4/8
6/12
TDP
95 W
130 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
12288 kB
Date
September 2016
November 2011

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
i7-3930K
Test#1 (Integers)
17549
9951 (-43.30%)
Test#2 (FP)
27822
9223 (-66.85%)
Test#3 (Generic, ZIP)
6796
4571 (-32.74%)
Test#1 (Memory)
14832
4019 (-72.91%)
TOTAL
66999
27763 (-58.56%)

Multithread

i7-7700K

i7-3930K
Test#1 (Integers)
68395
68487 (0.13%)
Test#2 (FP)
118805
61648 (-48.11%)
Test#3 (Generic, ZIP)
33336
31902 (-4.30%)
Test#1 (Memory)
17434
2306 (-86.77%)
TOTAL
237970
164343 (-30.94%)

Performance/W
i7-7700K
i7-3930K
Test#1 (Integers)
720 points/W
527 points/W
Test#2 (FP)
1251 points/W
474 points/W
Test#3 (Generic, ZIP)
351 points/W
245 points/W
Test#1 (Memory)
184 points/W
18 points/W
TOTAL
2505 points/W
1264 points/W

Performance/GHz
i7-7700K
i7-3930K
Test#1 (Integers)
3900 points/GHz
2619 points/GHz
Test#2 (FP)
6183 points/GHz
2427 points/GHz
Test#3 (Generic, ZIP)
1510 points/GHz
1203 points/GHz
Test#1 (Memory)
3296 points/GHz
1058 points/GHz
TOTAL
14889 points/GHz
7306 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