Performance difference

[drewdsterling]

How much of a difference does it make for gaming 8700 vs 8700k?  The only reason I ask is to see if it is worth the extra cash for the K SKU vs the locked CPU.

[knightslugger]

The overclock alone on the 8700k will give 15% higher performance.

[DarkSmith2]

1 minute ago, drewdsterling said:

How much of a difference does it make for gaming 8700 vs 8700k?  The only reason I ask is to see if it is worth the extra cash for the K SKU vs the locked CPU.

depending how long you plan to use it and the price difference between them in your country.

 

In the country i live in, the price difference is ~25€ so its never worth to buy the 8700 nonK.

The K variant will last a little longer because even 100MhZ make a difference when GPU's are starting to get stronger in the future.

[TheElectronicGeek1]

3 minutes ago, drewdsterling said:

How much of a difference does it make for gaming 8700 vs 8700k?  The only reason I ask is to see if it is worth the extra cash for the K SKU vs the locked CPU.

For gaming it does help a bit overclocking the cpu, and you'll get more performance in more cpu intense programs.

[drewdsterling]

Gotcha thanks for the help everyone I much appreciate it!

[Mira Yurizaki]

At stock, you're looking at these Turbo Boost speeds:

• i7-8700K
  • 6 cores: 4.3 GHz
  • 4-5 Cores: 4.4 GHz
  • 3 cores: 4.5 GHz
  • 2 cores: 4.6 GHz
  • 1 core: 4.7GHz
• i7-8700
  • 4-6 cores: 4.3 GHz
  • 3 cores: 4.4 GHz
  • 2 cores: 4.5 GHz
  • 1 core: 4.6 GHz

There's basically no more than a 100MHz difference, which is about 2% across the board. "Overclocking" an unlocked CPU only increases the limit at which Turbo Boost can work to. So even if you can get it to 5.0GHz on a single core, it's about 8% better than single core turbo boost on the i7-8700. And for about $50 USD more, I don't feel that's worth much.

 

You could enable MCE which would get you 16% if you can get the i7-8700K to 5.0GHz over the i7-8700. But this also increases the power dissipation greatly (Gamer's Nexus reports about a 40% increase, so you'll need a cooler that has at least a 150W TDP rating)

[pas008]

1 hour ago, knightslugger said:

The overclock alone on the 8700k will give 15% higher performance.

in gaming or what?

 

https://www.techpowerup.com/reviews/Intel/Core_i7_8700K/18.html

[knightslugger]

48 minutes ago, pas008 said:

in gaming or what?

 

https://www.techpowerup.com/reviews/Intel/Core_i7_8700K/18.html

I should have qualified that as a fast and loose number.