AMD Zen 2 could offer a 13 per cent IPC gain over Zen+

[HEXUS]

It would easily eclipse the 3 to 5 per cent IPC gains seen in the move from Zen to Zen+.

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[Tabbykatze]

So having an IPC gain of 13% over Zen+ means that if you had a 2700X and 3700X freq locked to 4GHz then Zen 2 would be 13% faster in varying workloads?

[Zak33]

In our first Pinnacle Ridge CPU reviews HEXUS discovered that the move to Zen+ cores delivered an approximate 10 per cent all-core performance uplift and incremental gaming gains over the previous gen. The IPC uplift witnessed was in single digits, between 3 and 5 per cent.

Might have got this wrong but if a 3-5% IPC uplift gave 10% all core performance uplift... a 13% IPC uplift could potentially give way over 20% uplift....

[aidanjt]

So having an IPC gain of 13% over Zen+ means that if you had a 2700X and 3700X freq locked to 4GHz then Zen 2 would be 13% faster in varying workloads?

More or less. Individual instructions may perform better to a lesser or greater extent, so obviously the exact gains would depend on the particular mix of instructions being issued to the CPU by applications.

[scaryjim]

Might have got this wrong but if a 3-5% IPC uplift gave 10% all core performance uplift... a 13% IPC uplift could potentially give way over 20% uplift....

Well, that 10% uplift was partially built on clock increases of between 5% and 10%, so it depends on how exactly what clock speed they can get out of the 7nm process. A process move/shrink doesn't always improve clock speeds (think Richland -> Kaveri), but a 5% clock speed increase plus 13% IPC increase would work out to around 19% actual performance boost.

[lumireleon]

AMD net income (2017): $43 million ...intel net income: $9.6 BILLION !!.....lets do the math 9,600,000,000 / 43,000,000 = 223 TIMES. AMD needs a SUPER miracle to take 50% of global PC/server sales

[Tabbykatze]

AMD net income (2017): $43 million ...intel net income: $9.6 BILLION !!.....lets do the math 9,600,000,000 / 43,000,000 = 223 TIMES. AMD needs a SUPER miracle to take 50% of global PC/server sales

I don't think that's comparable because Intels spiders web of product revenue streams covers far more than AMDs. And it doesn't need a Super miracle, it just needs to provide a good value proposition.

AMD aren't planning on taking on Moby Dick, Lisa said this quite clearly in their recent interviews. They just want to release good products that show up the competition in a different light and let it grow from there.

I think you are focusing on the wrong thing here.

[philehidiot]

If you build it they will come approach works if the value proposition is good. I suspect Nvidia is about to find that building something awesome at any cost will not necessarily translate into profits.

[flearider]

all it will take is a 30-40% sales over all and a lot will happen (if it's not atm) to intel teams ...
intel can't afford a drop in sales or heads will roll very quickly ..
they were short sighted and amd did a nice broadside as long as they can keep going they may get to 35% before intell regain composure

[Corky34]

Why do i get the impression that 'Bits and Chips' picked up on the news that Zen disabled FMA4 because it's suspected to be broken and automatically assumed Zen2 would fix it and that would result in a 13% increase in IPC for 'scientific task' workloads / benchmarks.

Out of curiosity what's 'Bits and Chips' reputation like when it comes to leaks and rumors?

[CAT-THE-FIFTH]

Why do i get the impression that 'Bits and Chips' picked up on the news that Zen disabled FMA4 because it's suspected to be broken and automatically assumed Zen2 would fix it and that would result in a 13% increase in IPC for 'scientific task' workloads / benchmarks.

Out of curiosity what's 'Bits and Chips' reputation like when it comes to leaks and rumors?

They were quite close on Zen and utterly crap with Vega.

[GoldenBunip]

They were quite close on Zen and utterly crap with Vega.

VEGA was a compute card, it absolutely smashed everything for mining. Doing 2000HS in moner / 45MH ETH for under 120w! When a Titan was doing 1300hs Monero / 31MH Eth at the same power but costing x3 the amount. This is why they sold out for over a year solid. AMD couldn't make them fast enough. From a business perspective that's a huge success.
Just because its not what you want to use it for, doesn't mean its not a success elsewhere.

I know this as i have two AMD gaming rigs all paid for by mining on a bunch of vegas.

[CAT-THE-FIFTH]

They were quite close on Zen and utterly crap with Vega.

VEGA was a compute card, it absolutely smashed everything for mining. Doing 2000HS in moner / 45MH ETH for under 120w! When a Titan was doing 1300hs Monero / 31MH Eth at the same power but costing x3 the amount. This is why they sold out for over a year solid. AMD couldn't make them fast enough. From a business perspective that's a huge success.
Just because its not what you want to use it for, doesn't mean its not a success elsewhere.

I know this as i have two AMD gaming rigs all paid for by mining on a bunch of vegas.

They got the gaming performance estimates on Vega wrong IIRC,but their info on Zen seemed relatively accurate.

OFC,with any rumour taking it with a bunch of salt!!

[aidanjt]

Why do i get the impression that 'Bits and Chips' picked up on the news that Zen disabled FMA4 because it's suspected to be broken

Technically the instructions aren't disabled, they only removed it from the CPUID flag list. The CPU will still accept the instructions if the software issues them. Presumably this is for compatibility's sake, can't have software compiled for AMD CPUs crashing out because of a buggy SIMD instruction set. It could account for the cited IPC improvement, but it'd come off as a bit of flakey marketing to me.

[ETR316]

this % gain is fine, if the price increases are only an additional same amount. if they are 35-60% higher, then amd is can go kiss my butt, and they are no better than intel. funded by saudi filth money anyway

[Tabbykatze]

this % gain is fine, if the price increases are only an additional same amount. if they are 35-60% higher, then amd is can go kiss my butt, and they are no better than intel. funded by saudi filth money anyway

Woh, that escalated quickly.