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Core i7-5820K vs i7-4820K


Description
The i7-5820K is based on Haswell architecture while the i7-4820K is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the i7-4820K gets 134.1 k points.

Summarizing, the i7-4820K is 1 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
306e4
Core
Haswell-E
Ivy Bridge -E
Architecture
Base frecuency
3.3 GHz
3.7 GHz
Boost frecuency
3.6 GHz
3.9 GHz
Socket
LGA 1150
LGA 1155
Cores/Threads
6/12
4/8
TDP
140 W
130 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
15360 kB
8192 kB
Date
September 2014
September 2013
Mean monothread perf.
31.53k points
32.49k points
Mean multithread perf.
129.06k 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
i7-5820K
i7-4820K
Test#1 (Integers)
12.03k
11.85k (x0.98)
Test#2 (FP)
11.23k
11.84k (x1.05)
Test#3 (Generic, ZIP)
4.55k
4.69k (x1.03)
Test#1 (Memory)
3.72k
4.12k (x1.11)
TOTAL
31.53k
32.49k (x1.03)

Multithread

i7-5820K

i7-4820K
Test#1 (Integers)
49.48k
47.65k (x0.96)
Test#2 (FP)
52.21k
54.81k (x1.05)
Test#3 (Generic, ZIP)
19.7k
21.56k (x1.09)
Test#1 (Memory)
7.67k
10.05k (x1.31)
TOTAL
129.06k
134.08k (x1.04)

Performance/W
i7-5820K
i7-4820K
Test#1 (Integers)
353 points/W
367 points/W
Test#2 (FP)
373 points/W
422 points/W
Test#3 (Generic, ZIP)
141 points/W
166 points/W
Test#1 (Memory)
55 points/W
77 points/W
TOTAL
922 points/W
1031 points/W

Performance/GHz
i7-5820K
i7-4820K
Test#1 (Integers)
3343 points/GHz
3039 points/GHz
Test#2 (FP)
3119 points/GHz
3035 points/GHz
Test#3 (Generic, ZIP)
1264 points/GHz
1201 points/GHz
Test#1 (Memory)
1033 points/GHz
1056 points/GHz
TOTAL
8759 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