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Core i5-3470S vs i5-2500K


Description
The i5-3470S is based on Ivy Bridge architecture while the i5-2500K is based on Sandy Bridge.

Using the multithread performance as a reference, the i5-3470S gets a score of 93.4 k points while the i5-2500K gets 111.8 k points.

Summarizing, the i5-2500K is 1.2 times faster than the i5-3470S . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
206a7
Core
Sandy Bridge
Architecture
Base frecuency
2.9 GHz
3.3 GHz
Boost frecuency
3.6 GHz
3.7 GHz
Socket
LGA 1155
LGA 1155
Cores/Threads
4/4
4/4
TDP
65 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+x4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
June 2012
January 2011
Mean monothread perf.
31.35k points
32.85k points
Mean multithread perf.
93.35k points
111.83k 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
i5-3470S
i5-2500K
Test#1 (Integers)
11.41k
11.84k (x1.04)
Test#2 (FP)
10.98k
10.43k (x0.95)
Test#3 (Generic, ZIP)
4.31k
5.22k (x1.21)
Test#1 (Memory)
4.66k
5.36k (x1.15)
TOTAL
31.35k
32.85k (x1.05)

Multithread

i5-3470S

i5-2500K
Test#1 (Integers)
35.73k
45.51k (x1.27)
Test#2 (FP)
36k
40.83k (x1.13)
Test#3 (Generic, ZIP)
14.48k
20.7k (x1.43)
Test#1 (Memory)
7.14k
4.79k (x0.67)
TOTAL
93.35k
111.83k (x1.2)

Performance/W
i5-3470S
i5-2500K
Test#1 (Integers)
550 points/W
479 points/W
Test#2 (FP)
554 points/W
430 points/W
Test#3 (Generic, ZIP)
223 points/W
218 points/W
Test#1 (Memory)
110 points/W
50 points/W
TOTAL
1436 points/W
1177 points/W

Performance/GHz
i5-3470S
i5-2500K
Test#1 (Integers)
3168 points/GHz
3200 points/GHz
Test#2 (FP)
3050 points/GHz
2818 points/GHz
Test#3 (Generic, ZIP)
1197 points/GHz
1411 points/GHz
Test#1 (Memory)
1293 points/GHz
1449 points/GHz
TOTAL
8708 points/GHz
8878 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