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

[geordiejc]

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.

 

[geordiejc]

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.

 

[geordiejc]

thanks guys