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Considering Ryzen 7 1700 (oc) from i7 4770k @ 4.2ghz.

geordiejc

geordiejc

geordiejc

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Hello all,

Due to Gibbo saying he got his 1700 to 4.0ghz i'm tempted to upgrade my system as it will bring latest usb / m.2 ports & DDR4 over my z87 system and an extra 4 cores and 8 threads plus the IPC gain.

What is the IPC gain from haswell to zen?

Gibbo - if you're listening, i can't afford £250 on a motherboard (Asus ROG Crosshair VI Hero) , can you recommend a budget board? no need for SLI either.
 
Might have to wait for the NDA to lift and some benchmarks to get done before anyone can answer. Everyone pre-ordering now is taking them on trust that they're "quite good"...
 
Maybe, but there's a public article here http://wccftech.com/amd-ryzen-7-1700-overclocked-4ghz/ (Gibbo from OCUK)

OCUK staffer “Gibbo” reports successfully overclocking a retail Ryzen 7 1700 processor with an ASUS Crosshair VI Hero motherboard to 4.05GHz on all 8 cores. With this overclock the CPU would effectively be running 450MHz higher than the Ryzen 7 1800X flagship, which is very impressive considering the huge price delta between the two chips as well as the low 65W TDP of the 1700. “Gibbo” estimates, based on his results, that the 1800X should be able to hit 4.3GHz on all 8 cores.

We just tested a 1700, it hit 4.0GHz stable in everything, but ONLY in the Crosshair mainboard, the lower-end boards it was hovering around 3.80GHz as the VRM’s were cooking with extra voltage. It however was maxing around 4050MHz, so I’d say 1700 can do 3.9-4.1GHz, of course the 1800X will probably do 4.1-4.3 as no doubt better binned, but if your clocking the motherboard has a big impact on the overclock and so far Asus Crosshair and Asrock Taichi seem the best two.

Gibbo confirmed in a later comment that this overclock was achieved with a 240mm Asetek built liquid cooler, which is similar to the popular Corsair H100i.
Click to expand...
 
Your basically looking at £200 more for a higher end MB and possibly at minimum a sealed liquid cooler although previously those haven't faired more favourably than decent tower air coolers. So maybe a £150 more for a higher end MB in return for 200 MHz extra CPU performance. Unless your maxing out the CPU I would think personally that £150 - £200 might be better deployed into a better gfx card.
 
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PapaLazaru said:
It also entirely depends on what you use your pc for?
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Indeed. It depends what value you place on needing to squeeze the max out of the CPU architecture. OP appears to have a gaming rig at present so if this is intended to replace that then £200 saved on 200 MHz of CPU performance would yield better results going towards something like a 1080 gfx card. Or pocket the saving and wait and see what the Vega release yields, could then go fully AMD.
 
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geordiejc said:
Hello all,

Due to Gibbo saying he got his 1700 to 4.0ghz i'm tempted to upgrade my system as it will bring latest usb / m.2 ports & DDR4 over my z87 system and an extra 4 cores and 8 threads plus the IPC gain.

What is the IPC gain from haswell to zen?

Gibbo - if you're listening, i can't afford £250 on a motherboard (Asus ROG Crosshair VI Hero) , can you recommend a budget board? no need for SLI either.
Click to expand...

Gibbo used the top end Asus board for 4.0, he already stated the only 2 boards that were pretty much capable of this was the Asus CH6 and the Asrock Taichi, look at their specs, they have superior VRM's to the other boards, this is why they managed to achieve what they did, with a 240 AIO Asetek on the board.

Now if you want to take the 1700 and get it to 4.0ghz, you are going to need to do similar, you will need the top end boards (Asus CH6 or Asrock Taichi) you will need a decent cooler (Either a decent AIO or a decent Air Cooler) and you will need some silicon lottery luck.

You will pay less for the CPU but more for the Motherboard.

Alternatively you can just buy the 1800X which has a garaunteed 4ghz clock, and then buy a cheaper motherboard as you wont need to overclock it much, coupled with a decent cooler you may even get it to 4.2 or so. There is not much difference in price between a 1700 and Asus / Asrock top motherboard and buying the 1800X and a B350 model motherboard.

So you either take the silicon lottery gamble and hope you get a good chip, put in a lot of work getting it 4ghz stable, or you buy the pre clocked 4ghz stable chip and a cheaper motherboard and just enjoy.

That pretty much sums it up for me, the only unknown in all of this is the 1700x and what it potentially brings to the table.
 
I'd say the better mobo is a better choice because if you want you can always upgrade to Zen+ and the advantages of the better mobo carry forward.
SiDeards73 said:
Gibbo used the top end Asus board for 4.0, he already stated the only 2 boards that were pretty much capable of this was the Asus CH6 and the Asrock Taichi, look at their specs, they have superior VRM's to the other boards, this is why they managed to achieve what they did, with a 240 AIO Asetek on the board.

Now if you want to take the 1700 and get it to 4.0ghz, you are going to need to do similar, you will need the top end boards (Asus CH6 or Asrock Taichi) you will need a decent cooler (Either a decent AIO or a decent Air Cooler) and you will need some silicon lottery luck.

You will pay less for the CPU but more for the Motherboard.

Alternatively you can just buy the 1800X which has a garaunteed 4ghz clock, and then buy a cheaper motherboard as you wont need to overclock it much, coupled with a decent cooler you may even get it to 4.2 or so. There is not much difference in price between a 1700 and Asus / Asrock top motherboard and buying the 1800X and a B350 model motherboard.

So you either take the silicon lottery gamble and hope you get a good chip, put in a lot of work getting it 4ghz stable, or you buy the pre clocked 4ghz stable chip and a cheaper motherboard and just enjoy.

That pretty much sums it up for me, the only unknown in all of this is the 1700x and what it potentially brings to the table.
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han
 
Bonjour said:
I never skimp on the mobo.
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I'd never buy a cheapo budget board. But on the other hand, i think these 300 quid boards are a waste of money. You're paying for branding and silly lights. I'd never pay more than £150.

My Asrock gaming k6 is an excellent board with all the features i need for a very reasonable £135. Why would i need to spend more?
 
SiDeards73 said:
Alternatively you can just buy the 1800X which has a garaunteed 4ghz clock, and then buy a cheaper motherboard as you wont need to overclock it much, coupled with a decent cooler you may even get it to 4.2 or so. There is not much difference in price between a 1700 and Asus / Asrock top motherboard and buying the 1800X and a B350 model motherboard.
Click to expand...

The 1800X has TDP 95 watts. The non overclocked 1700 has TDP 65 watts. When overclocked, the 1700 will have around the same TDP as a non overclocked 1800X, so it's surprising that VRMs are the limiting factor.
 
Absolutely there's a sweet spot. You need to work out what it is you want and what features would be superfluous. Good quality VRMs and adequate power phases are a must, though. Not at all fussed about LEDs etc.
 
That's not to say i didn't look at some of the asus boards with an admiring eye :p

But some of them are eyewateringly expensive for no apparent reason other than coloured lights and asus rog tax.
 
I'm making the same move, to be honest I expect IPC to be either the same or slightly less.
But I'm hoping AMDS version of HT has higher scaling that will offset that in higher scaling scenarios.

Overall id probably be expecting when maxed out I'd see near twice the performance.
 
IvanDobskey said:
I'd never buy a cheapo budget board. But on the other hand, i think these 300 quid boards are a waste of money. You're paying for branding and silly lights. I'd never pay more than £150
Click to expand...

100%. Theres a sweet spot with mobos where they stop cutting corners, but don't add all the frivolous rubbish. Intel boards will offer just as good an overclock on £120 as you'll get on a £300 board. If this changes on Ryzen, it would be disappointing.
 
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