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Core i7-8550U vs i7-3930K


Description
The i7-8550U is based on Kaby Lake architecture while the i7-3930K is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-8550U gets a score of 105.9 k points while the i7-3930K gets 155.9 k points.

Summarizing, the i7-3930K is 1.5 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
206d7
Core
Kaby Lake-R
Sandy Bridge-E
Architecture
Base frecuency
1.8 GHz
3.2 GHz
Boost frecuency
4 GHz
3.8 GHz
Socket
BGA1356
LGA 2011
Cores/Threads
4/8
6/12
TDP
15 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
12288 kB
Date
August 2017
November 2011
Mean monothread perf.
64.2k points
27.76k points
Mean multithread perf.
166.12k points
155.86k points

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
i7-8550U
i7-3930K
Test#1 (Integers)
13.15k
10.08k (x0.77)
Test#2 (FP)
19.7k
9.06k (x0.46)
Test#3 (Generic, ZIP)
5.1k
4.45k (x0.87)
Test#1 (Memory)
9.21k
4.16k (x0.45)
TOTAL
47.16k
27.76k (x0.59)

Multithread

i7-8550U

i7-3930K
Test#1 (Integers)
34.13k
62.22k (x1.82)
Test#2 (FP)
53.79k
60.25k (x1.12)
Test#3 (Generic, ZIP)
13.91k
30.42k (x2.19)
Test#1 (Memory)
4.12k
2.97k (x0.72)
TOTAL
105.95k
155.86k (x1.47)

Performance/W
i7-8550U
i7-3930K
Test#1 (Integers)
2275 points/W
479 points/W
Test#2 (FP)
3586 points/W
463 points/W
Test#3 (Generic, ZIP)
927 points/W
234 points/W
Test#1 (Memory)
275 points/W
23 points/W
TOTAL
7063 points/W
1199 points/W

Performance/GHz
i7-8550U
i7-3930K
Test#1 (Integers)
3288 points/GHz
2653 points/GHz
Test#2 (FP)
4924 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
1275 points/GHz
1172 points/GHz
Test#1 (Memory)
2303 points/GHz
1096 points/GHz
TOTAL
11791 points/GHz
7304 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. 3.11.4