[SOLVED] Going from i7 to i5 for gaming

Gregkar

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Dec 18, 2013
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Hi, i currently have this build:
i7-8700k @5.0Ghz
32GB DDR4 @3200Mhz
Asus Z-370a Prime
RTX-3070 OC

i want to upgrade to
i5-12600k or i7-12700k
Asus Prime Z690-P D4
and keep the rest (ram and gpu)

i mainly play heavy games in VR (Reverb G2) like DCS, do you think an i5 is ok for my case, or i should spend an extra 150usd/eur for the 12700?
the money difference is substantial
 

geofelt

Titan
I3/5/7/9 no longer mean what they used to.
It used to indicate the number of cores/threads.
Now it is a more generic power description.

Your i7-8700K has 12 threads and a passmark rating of 13899/2674
the 2674 single thread rating is usually the more important for gaming.
The i5-12600K has 16 threads and a rating of 23949/3946.
A very nice upgrade.
Run cpu-Z bench on your 8700K.
The single thread number should be about 510.
Here are the numbers for the 12600K which is 773.
http://valid.x86.fr/bench/bhgfiz/1
The rating for the 12700K is 852.
 
Reactions: Why_Me and Gregkar

Ralston18

Titan
Moderator
Verify that the motherboard will support the upgraded CPU's being considered.

Confirm via the Asus website: check motherboard manual and the current QVL (Qualified Vendor's List). Details matter.

What other components are installed? Drives, peripherals....?

PSU: make, model, wattage, age, condition?

Ensure that the PSU will be able to provide the necessary power to play the VR games. Especially at a moments of peak demand.
 

Gregkar

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Dec 18, 2013
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Verify that the motherboard will support the upgraded CPU's being considered.

Confirm via the Asus website: check motherboard manual and the current QVL (Qualified Vendor's List). Details matter.

What other components are installed? Drives, peripherals....?

PSU: make, model, wattage, age, condition?

Ensure that the PSU will be able to provide the necessary power to play the VR games. Especially at a moments of peak demand.
it does support both i5 and i7.
i have A LOT of other components and peripherals, as this is a high end racing/flight simulator, i can't write everything down, i have more than 20 usb devices, 3 monitors, 1 VR headset and list goes on.
PSU is a Corsair RMX 850watt Gold

question is, should i go for the 12700k or an i5-12600 is still a good upgrade to my 8700k?
 
Reactions: Why_Me

geofelt

Titan
I3/5/7/9 no longer mean what they used to.
It used to indicate the number of cores/threads.
Now it is a more generic power description.

Your i7-8700K has 12 threads and a passmark rating of 13899/2674
the 2674 single thread rating is usually the more important for gaming.
The i5-12600K has 16 threads and a rating of 23949/3946.
A very nice upgrade.
Run cpu-Z bench on your 8700K.
The single thread number should be about 510.
Here are the numbers for the 12600K which is 773.
http://valid.x86.fr/bench/bhgfiz/1
The rating for the 12700K is 852.
 
Reactions: Why_Me and Gregkar

Gregkar

Distinguished
Dec 18, 2013
34
3
18,535
0
I3/5/7/9 no longer mean what they used to.
It used to indicate the number of cores/threads.
Now it is a more generic power description.

Your i7-8700K has 12 threads and a passmark rating of 13899/2674
the 2674 single thread rating is usually the more important for gaming.
The i5-12600K has 16 threads and a rating of 23949/3946.
A very nice upgrade.
Run cpu-Z bench on your 8700K.
The single thread number should be about 510.
Here are the numbers for the 12600K which is 773.
http://valid.x86.fr/bench/bhgfiz/1
The rating for the 12700K is 852.
Thank you very much! Very helpful!

*Did the benchmark, it is 563
 

Gregkar

Distinguished
Dec 18, 2013
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Does your system even need a cpu upgrade?
How is cpu utilization during those high end racing/flight simulator games? Is it close to 100% ?
Because if not, then GPU is the limiting factor there and upgrading cpu might not give much of an improvement.
Yeah, i think during DCS in VR total CPU usage is ~90%
 
Yeah, i think during DCS in VR total CPU usage is ~90%
Ok. Then definitely go with i7.

i5-12600k may sound like it has more cores, but 4 extra cores are efficiency cores.
They are very weak. They all together have less performance than 1 performance core.
For simplicity of comparison you can just ignore them.
Then 6core/12thread 8700k vs 6core/12thread 12600k doesn't seem that big of a difference.
 
Reactions: Gregkar
Hi, i currently have this build:
i7-8700k @5.0Ghz
32GB DDR4 @3200Mhz
Asus Z-370a Prime
RTX-3070 OC

i want to upgrade to
i5-12600k or i7-12700k
Asus Prime Z690-P D4
and keep the rest (ram and gpu)

i mainly play heavy games in VR (Reverb G2) like DCS, do you think an i5 is ok for my case, or i should spend an extra 150usd/eur for the 12700?
the money difference is substantial
If you have the bucks go for the 12700.
The 12600 will still give a nice bump in perf.
 
Reactions: Gregkar

geofelt

Titan
Ok. Then definitely go with i7.

i5-12600k may sound like it has more cores, but 4 extra cores are efficiency cores.
They are very weak. They all together have less performance than 1 performance core.
For simplicity of comparison you can just ignore them.
Then 6core/12thread 8700k vs 6core/12thread 12600k doesn't seem that big of a difference.
The E cores are not exactly wimpy.
The total passmark rating is close to 2x the 8700K.
Good IF... you can use them all.
 

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