| | | | | | |

Ryzen 7 3800X vs Core i7-4820K


Description
The 3800X is based on Zen 2 architecture while the i7-4820K is based on Ivy Bridge.

Using the multithread performance as a reference, the 3800X gets a score of 440.5 k points while the i7-4820K gets 134.1 k points.

Summarizing, the 3800X is 3.3 times faster than the i7-4820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
306e4
Core
Matisse
Ivy Bridge -E
Architecture
Base frecuency
3.9 GHz
3.7 GHz
Boost frecuency
4.5 GHz
3.9 GHz
Socket
AM4
LGA 1155
Cores/Threads
8/16
4/8
TDP
105 W
130 W
Cache L1 (d+i)
8x32+8x32 kB
32+32 kB
Cache L2
8x512 kB
256 kB
Cache L3
32768 kB
8192 kB
Date
July 2019
September 2013
Mean monothread perf.
75.81k points
32.49k points
Mean multithread perf.
497.74k 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
3800X
i7-4820K
Test#1 (Integers)
16.76k
11.85k (x0.71)
Test#2 (FP)
25.16k
11.84k (x0.47)
Test#3 (Generic, ZIP)
8.76k
4.69k (x0.53)
Test#1 (Memory)
24.3k
4.12k (x0.17)
TOTAL
74.98k
32.49k (x0.43)

Multithread

3800X

i7-4820K
Test#1 (Integers)
131.36k
47.65k (x0.36)
Test#2 (FP)
198.51k
54.81k (x0.28)
Test#3 (Generic, ZIP)
97.27k
21.56k (x0.22)
Test#1 (Memory)
13.4k
10.05k (x0.75)
TOTAL
440.54k
134.08k (x0.3)

Performance/W
3800X
i7-4820K
Test#1 (Integers)
1251 points/W
367 points/W
Test#2 (FP)
1891 points/W
422 points/W
Test#3 (Generic, ZIP)
926 points/W
166 points/W
Test#1 (Memory)
128 points/W
77 points/W
TOTAL
4196 points/W
1031 points/W

Performance/GHz
3800X
i7-4820K
Test#1 (Integers)
3724 points/GHz
3039 points/GHz
Test#2 (FP)
5592 points/GHz
3035 points/GHz
Test#3 (Generic, ZIP)
1946 points/GHz
1201 points/GHz
Test#1 (Memory)
5401 points/GHz
1056 points/GHz
TOTAL
16662 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