i7-7700k or i5-8500k

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Grayy_

Grayy_

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Title says it all really, whats better for gaming at the moment? It's between these last two for the last part of my build. cheers
 
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Barty1884
That would be my choice based on what you asked, yes.

Two thoughts though:
1. Do you have an existing setup with the 1070? If so, what CPU/MB? Might not be worth upgrading (on a cost vs performance basis) just yet
2. What resolution do you intend to play at? As you push higher resolutions (1440p & 4K), the CPU ins't as much of a concern, within reason.

Take a look at the charts I linked, a Ryzen5 1600 (at stock speeds) will net you anywhere from 83% (@ 720p), 92.5% (1080p). 97.5% (1440p) to 99.3% (at 4K) of the relative performance of a 7700K or 8600K ...... at *stock* speeds, an overclock on the R5 will lessen that some too.

Considering a Ryzen5 1600 + B350, overclocking board will only set you back around ~$250 or so AND...
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johnnypdx23

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I've done my research on this one and the i5 is a better bang for your buck. The i7 does outperform it, but not be enough for a dedicated gaming machine for the price increase.
 
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Barty1884

Barty1884

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What research? The i5-8500K doesn't exist?

You've got an i5-8400, or i5-8600K

The 8600K is a nice chip, but it's +$70 over the 8400 for a higher base/boost frequency and overclocking ability.
Given the 8400 would be wasted on a Z370 board, and that's all that's available right now; you're down to 7700K vs 8600K

I'd opt for the 7700K myself, given the i5-8600k lacks hyper-threading, you're running 6 cores only.
The 7700K is 4core + HT (8threads), higher base and boost speeds etc.

If the budget allows, the i7-8700K would be worth considering; but given the options presented, I'm assuming that's a little out of reach budget-wise?
 
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johnnypdx23

johnnypdx23

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I'm sorry, I was ASSUMING he meant the 8400. I read it right here on Tom's... Thank you for the more in-depth assessment. I wasn't willing to get all techy about it.
 
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Grayy_

Grayy_

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Whoops sorry I meant 8600k.. 8700k is over budget so will be between the two i mentioned above. still stuck between the two :(
 
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Barty1884

Barty1884

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About $375
PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($287.89 @ Amazon)
Motherboard: Gigabyte - GA-Z270P-D3 ATX LGA1151 Motherboard ($89.99 @ SuperBiiz)
Total: $377.88
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-04 18:24 EST-0500

Vs ~$407
PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-8600K 3.6GHz 6-Core Processor ($295.99 @ B&H)
Motherboard: Gigabyte - Z370 HD3 (rev. 1.0) ATX LGA1151 Motherboard ($111.49 @ SuperBiiz)
Total: $407.48
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-04 18:25 EST-0500

They're so close, the the 7700K winning out at stock at every resolution (on average), when paired with a 1080.
https://www.techpowerup.com/reviews/Intel/Core_i5_8600K/18.html

You need to be OC'd on the 8600K, and at 4K resolution to see the 8600K "win", and even then it's by 0.4% vs a stock 7700K.
Actually overclock the 7700K and it's the better chip at all resolutions, by some decent margins at 1080p and 1440p.

And remember, those are results are when paired with a 1080. Depending on the GPU chosen, YMMV, but I'd expect them to be neck and neck across the board - with an overclocked 7700K beating an overclocked 8600K.
 
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Grayy_

Grayy_

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I have a MSI 1070 X.
So you think going with the is the best option for me?
CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($287.89 @ Amazon)
Motherboard: Gigabyte - GA-Z270P-D3 ATX LGA1151 Motherboard ($89.99 @ SuperBiiz)
 
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Barty1884

Barty1884

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That would be my choice based on what you asked, yes.

Two thoughts though:
1. Do you have an existing setup with the 1070? If so, what CPU/MB? Might not be worth upgrading (on a cost vs performance basis) just yet
2. What resolution do you intend to play at? As you push higher resolutions (1440p & 4K), the CPU ins't as much of a concern, within reason.

Take a look at the charts I linked, a Ryzen5 1600 (at stock speeds) will net you anywhere from 83% (@ 720p), 92.5% (1080p). 97.5% (1440p) to 99.3% (at 4K) of the relative performance of a 7700K or 8600K ...... at *stock* speeds, an overclock on the R5 will lessen that some too.

Considering a Ryzen5 1600 + B350, overclocking board will only set you back around ~$250 or so AND includes a decent stock cooler, that's definitely the best "bang for buck" - especially if you want to play at 1440p+.
You'd be looking at 97.5-99.3% (at stock) performance of an 8600K, for 61-65% of the price. Definitely worth considering IMO.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 5 1600 3.2GHz 6-Core Processor ($189.98 @ SuperBiiz)
Motherboard: MSI - B350M GAMING PRO Micro ATX AM4 Motherboard ($70.98 @ Newegg)
Total: $260.96
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-04 18:53 EST-0500
 
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Grayy_

Grayy_

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Currently have a i5-6600 in a MSI H170A PC Mate Motherboard , but will be selling it on to a friend so Ill be putting the £££ i get from that towards the new PC plus a little extra. I have Kingston - HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory which ill probably be upgrading in the future.
 
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Barty1884

Barty1884

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"Infinity Fabric" is part of AMD Ryzen CPUs - at a very basic level, the CPUs will be faster themselves, when paired with higher speed RAM (to a point).

In day-to-day usage, on an Intel platform, you're unlikely to notice the real-world performance difference between 2133/2400MHz and 3000/3200MHz speed DDR4. On AMD platforms, you most definitely will.

Speeds beyond 3000/3200Mhz show substantial diminishing returns though (cost increase vs performance gain) .
 
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