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Core i5-2500K vs i7-4820K


Description
The i5-2500K is based on Sandy Bridge architecture while the i7-4820K is based on Ivy Bridge.

Using the multithread performance as a reference, the i5-2500K gets a score of 111.8 k points while the i7-4820K gets 134.1 k points.

Summarizing, the i7-4820K is 1.2 times faster than the i5-2500K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
306e4
Core
Sandy Bridge
Ivy Bridge -E
Architecture
Base frecuency
3.3 GHz
3.7 GHz
Boost frecuency
3.7 GHz
3.9 GHz
Socket
LGA 1155
LGA 1155
Cores/Threads
4/4
4/8
TDP
95 W
130 W
Cache L1 (d+i)
4x32+x4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
January 2011
September 2013
Mean monothread perf.
32.85k points
32.49k points
Mean multithread perf.
111.83k points
134.08k 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
i5-2500K
i7-4820K
Test#1 (Integers)
11.84k
11.85k (x1)
Test#2 (FP)
10.43k
11.84k (x1.14)
Test#3 (Generic, ZIP)
5.22k
4.69k (x0.9)
Test#1 (Memory)
5.36k
4.12k (x0.77)
TOTAL
32.85k
32.49k (x0.99)

Multithread

i5-2500K

i7-4820K
Test#1 (Integers)
45.51k
47.65k (x1.05)
Test#2 (FP)
40.83k
54.81k (x1.34)
Test#3 (Generic, ZIP)
20.7k
21.56k (x1.04)
Test#1 (Memory)
4.79k
10.05k (x2.1)
TOTAL
111.83k
134.08k (x1.2)

Performance/W
i5-2500K
i7-4820K
Test#1 (Integers)
479 points/W
367 points/W
Test#2 (FP)
430 points/W
422 points/W
Test#3 (Generic, ZIP)
218 points/W
166 points/W
Test#1 (Memory)
50 points/W
77 points/W
TOTAL
1177 points/W
1031 points/W

Performance/GHz
i5-2500K
i7-4820K
Test#1 (Integers)
3200 points/GHz
3039 points/GHz
Test#2 (FP)
2818 points/GHz
3035 points/GHz
Test#3 (Generic, ZIP)
1411 points/GHz
1201 points/GHz
Test#1 (Memory)
1449 points/GHz
1056 points/GHz
TOTAL
8878 points/GHz
8331 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