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Core i7-4820K vs i7-4790


Description
The i7-4820K is based on Ivy Bridge architecture while the i7-4790 is based on Haswell.

Using the multithread performance as a reference, the i7-4820K gets a score of 134.1 k points while the i7-4790 gets 150.1 k points.

Summarizing, the i7-4790 is 1.1 times faster than the i7-4820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
306c3
Core
Ivy Bridge -E
Haswell
Architecture
Base frecuency
3.7 GHz
3.6 GHz
Boost frecuency
3.9 GHz
4 GHz
Socket
LGA 1155
LGA 1150
Cores/Threads
4/8
4/8
TDP
130 W
84 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
September 2013
May 2014
Mean monothread perf.
32.49k points
44.73k points
Mean multithread perf.
134.08k points
173.89k 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
i7-4820K
i7-4790
Test#1 (Integers)
11.85k
14.07k (x1.19)
Test#2 (FP)
11.84k
12.63k (x1.07)
Test#3 (Generic, ZIP)
4.69k
5.35k (x1.14)
Test#1 (Memory)
4.12k
4.98k (x1.21)
TOTAL
32.49k
37.03k (x1.14)

Multithread

i7-4820K

i7-4790
Test#1 (Integers)
47.65k
57.88k (x1.21)
Test#2 (FP)
54.81k
60.83k (x1.11)
Test#3 (Generic, ZIP)
21.56k
24.4k (x1.13)
Test#1 (Memory)
10.05k
6.95k (x0.69)
TOTAL
134.08k
150.07k (x1.12)

Performance/W
i7-4820K
i7-4790
Test#1 (Integers)
367 points/W
689 points/W
Test#2 (FP)
422 points/W
724 points/W
Test#3 (Generic, ZIP)
166 points/W
291 points/W
Test#1 (Memory)
77 points/W
83 points/W
TOTAL
1031 points/W
1786 points/W

Performance/GHz
i7-4820K
i7-4790
Test#1 (Integers)
3039 points/GHz
3518 points/GHz
Test#2 (FP)
3035 points/GHz
3157 points/GHz
Test#3 (Generic, ZIP)
1201 points/GHz
1338 points/GHz
Test#1 (Memory)
1056 points/GHz
1245 points/GHz
TOTAL
8331 points/GHz
9258 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