Which cpu is better?

[Birthday Snatcher]

i7-4790k or i5-9400f?

[_I_]

4790k
if oc'd to 4.5+ it will be faster than the locked i5
https://cpu.userbenchmark.com/Compare/Intel-Core-i7-4790K-vs-Intel-Core-i5-9400F/2384vsm699058

[Astraea Kisaragi]

9400 is newer and wins the performance per watt ration though. But if you wanna build a new machine, I would say go for AMD Ryzen 3000 series rather.

[_I_]

ryzen will get similar core performance, where it counts in games
or new i5k/i7k will be upgrades from the 4th gen i7k

4790k vs 8600k
https://cpu.userbenchmark.com/Compare/Intel-Core-i7-4790K-vs-Intel-Core-i5-8600K/2384vs3941

2700x is the same or slower core performance, with more of them
https://cpu.userbenchmark.com/Compare/Intel-Core-i7-4790K-vs-AMD-Ryzen-7-2700X/2384vs3958

[Birthday Snatcher]

Why is i7-4790k more than 2x the price of i5 though? Low supply and very high demand?

[_I_]

its the best cpu that uses ddr3
ez upgrade for intel 1150 boards that need a better cpu

[Astraea Kisaragi]

Because its not produced anymore. The ones out are either used ones or a limited supply of old stocks.

[Ralf]

Escrito originalmente por _I_:

its the best cpu that uses ddr3

i9-9900k+ ddr3 https://www.gigabyte.com/Motherboard/H310M-DS2V-DDR3-rev-10#kf

[Autumn_]

Escrito originalmente por Ralf:

Escrito originalmente por _I_:

its the best cpu that uses ddr3

i9-9900k+ ddr3 https://www.gigabyte.com/Motherboard/H310M-DS2V-DDR3-rev-10#kf

Why would anyone do this though? WHY???

[xSOSxHawkens]

With good ram running at ddr4 speeds (2400/2666 etc) a 4790k @4.8 is about the same as a 7700k @ 4.4/4.5 all core.

[Cloudy]

Although the i7-4790K can be overclocked higher if paired with a good cooler, the motherboard you would use with it would use slower DDR3 memory. There isnt as much of an upgrade path if you went with that CPU, and for that reason I think the i5-9400f would be a better choice.

[_I_]

Escrito originalmente por Ralf:

Escrito originalmente por _I_:

its the best cpu that uses ddr3

i9-9900k+ ddr3 https://www.gigabyte.com/Motherboard/H310M-DS2V-DDR3-rev-10#kf

1151 cpus do not have a ddr3 imc, they use a ddr4 imc which the mobo will need to translate to ddr3
those boards shoudl be avoided at all costs
if you are spending $500 on a cpu spend the extra $100 for a proper mobo and $80+ for ddr4

[xSOSxHawkens]

Escrito originalmente por _I_:

Escrito originalmente por Ralf:

i9-9900k+ ddr3 https://www.gigabyte.com/Motherboard/H310M-DS2V-DDR3-rev-10#kf

1151 cpus do not have a ddr3 imc, they use a ddr4 imc which the mobo will need to translate to ddr3
those boards shoudl be avoided at all costs
if you are spending $500 on a cpu spend the extra $100 for a proper mobo and $80+ for ddr4

They *do* have a ddr3 sypported imc.

The intel imc supports both up through 9th gen because real world ddr4 low power is *just* now getting tp be widely available. Many low power latops still use ddr3l because its cheap and available.

This is why its possible to use ddr3 with these chips, its just blocked by Intel by default.

Performance will suck with 1333 or 1600, but at 2400 or greater should be about equal to the same speed ddr4. At same speeda the version makes no difference. Performance of ddr 2400 cl11 is the same for 3 or 4...

[nullable]

I'd prefer the i5, the 9400f has more computing power, period. The 4790k is a decent CPU, and the 9400f wouldn't be better in every possible use case. So it really depends on your needs and preferences and whether you already have a 4790k or not...

[hawkeye]

Much the same performance. If buying new, the 9400f, but for a bit more, the 9600k is a lot better.

https://www.cpubenchmark.net/singleThread.html

9400f - 2389
4790k - 2530 at stock, faster if overclocked (about 10%)

9400f - 6 cores
4790k - 4 cores hyperthreaded = 5.2 "real" cores

Comparative game performance (with a high end gpu) -

https://www.gamersnexus.net/guides/3423-intel-i7-7700k-revisit-benchmark-vs-9700k-2700-9900k

As can be seen the 4790k and 8400 (a fraction slower than a 9400) at stock are nearly the same.

[_I_]

Escrito originalmente por hawkeye:

Much the same performance. If buying new, the 9400f, but for a bit more, the 9600k is a lot better.

https://www.cpubenchmark.net/singleThread.html

9400f - 2389
4790k - 2530 at stock, faster if overclocked (about 10%)

9400f - 6 cores
4790k - 4 cores hyperthreaded = 5.2 "real" cores

Comparative game performance (with a high end gpu) -

https://www.gamersnexus.net/guides/3423-intel-i7-7700k-revisit-benchmark-vs-9700k-2700-9900k

As can be seen the 4790k and 8400 (a fraction slower than a 9400) at stock are nearly the same.

4790k stock also sits right next to ryzen 2700 and r5 2600 @ 4.2ghz
basically if anyone says 4790k needs an upgrade for gaming they also say they need to upgrade the brand new ryzen 2xxx cpus also

if building a new pc for gaming, go with an i5k/i7k or ryzen