• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

*** AMD "Zen" thread (inc AM4/APU discussion) ***

OK, so someone was comparing this to Vishari (or whatever it's called), but the Zen has 40% more instructions per clock going by those graphs, and that's compared to excavator.

If we assume (eek!) that means a 40% speed boost, over excavator, then how do the other tech's (Kaveri etc) compare to this, and where would that roughly place Zen in comparison to these?
 
Check this out. Edit ^^^^ here.

Single Core performance.

Excavator @ 3.4Ghz (Boost)
1469



PileDriver @ 4.1Ghz (Boost)
1408



At 20% higher clock rate Piledriver is 96% the performance of Excavator, and the FX-8800P is a 35 Watt 2m 4 Core part that doesn't even have L3 Cache. (A 4 Core 3.4Ghz AMD laptop is faster than an FX-4350 Desktop)

Basically per core per clock Excavator is 25% faster than Piledriver at about half the power consumption.

IMO this shows 2 things.

AMD's current CPU architecture isn't all that bad.
How bad AMD's mainstream CPU's are compared with what they themselves can do.

Why are they still flogging these ancient slow greedy parts when they can and do so much better?
 
Last edited:
Can you actually get a 35w FX-8800P laptop anywhere though?
AMD are the masters of releasing mobile parts that can't be bought. I've seen 15w available for the 8800p, and that's just ridiculous...
 
humbug said:
eh.... i can't be _____ to do it again :p

With the touted figures we can safely say Zen Would be very close to Haswell.

That's pretty damned good, Take today's Intel prices:

AMD would probably do.

4 Core 8 Thread £150
6 Core 12 Thread £220
8 Core 16 Thread £350 Halo Product?
Click to expand...

Given AMD were selling Centurions for Intel-E prices, they're not doing a modern halo product for 350 quid.

I've got hopes for Zen, but meh, I'm just going to stick out of people going hype mad, because time and time again, the hype is nothing, people pretend like nothing's happened, then do it all again.
 
Din't last long tho did it ^^^ and no i didn't buy mine at full price, they do seem to be better, mine runs at 4.8Ghz at the temps and volts the 8350 did at 4.5Ghz.
In the end its customers who dictate pricing, i don't think 8 thread Haswell performance for £150 is all unreasonable, or £220 for 12 thread and given that the 6700K is £350 and 16 thread Zen for £350 is very reasonable.

Emlyn_Dewar said:
Can you actually get a 35w FX-8800P laptop anywhere though?
AMD are the masters of releasing mobile parts that can't be bought. I've seen 15w available for the 8800p, and that's just ridiculous...
Click to expand...


Just found a Toshiba - Satellite Radius with one, US Retailer.

Probably hard to find in the UK but i did find a Lenovo Z50 with the lower model Excavator chip in it.

I have seem TV adds for Laptop's with AMD chips in them recently, something i have not seen for a lot of years.
 
Last edited:
I think the Toshibas are running at 15w, from forum posts. It's pretty pathetic to not give users the option to swap between both modes, but I guess it helps manufacturers skimp on cooling.
I'm genuinely interested in a laptop with one of these chips.
 
humbug said:
Check this out. Edit ^^^^ here.

Single Core performance.

Excavator @ 3.4Ghz (Boost)
1469



PileDriver @ 4.1Ghz (Boost)
1408



At 20% higher clock rate Piledriver is 96% the performance of Excavator, and the FX-8800P is a 35 Watt 2m 4 Core part that doesn't even have L3 Cache. (A 4 Core 3.4Ghz AMD laptop is faster than an FX-4350 Desktop)

Basically per core per clock Excavator is 25% faster than Piledriver at about half the power consumption.

IMO this shows 2 things.

AMD's current CPU architecture isn't all that bad.
How bad AMD's mainstream CPU's are compared with what they themselves can do.

Why are they still flogging these ancient slow greedy parts when they can and do so much better?
Click to expand...

Thank you very much for those!

Would you be able to post some other images from that graph? say a 7850K and maybe 860K to see how it compares? (I think those are both steamroller)

Alternatively, could you mention where you got them?


EDIT: I haven't been following this Carrizo/Zen/Bristol Ridge stuff much, but it's interesting to see that Bristol Ridge (Excavator) might be coming to FM2+ to fill the gap until Zen. That would be a pretty interesting chip to me if it works with existing FM2+ motherboards. Does anyone know if they are actually releasing Bristol Ridge for Desktop?
 
Last edited:
Scougar said:
Thank you very much for those!

Would you be able to post some other images from that graph? say a 7850K and maybe 860K to see how it compares? (I think those are both steamroller)
Click to expand...
The 860k is just a 7850 with disabled igp, Do you mean the anticipated 880k?
In their benches the 7870k with higher p-states scores less than the 7850k and 860k.




7850k


7870k
 
AMDs problem of late (aside from Intel contra-bribery-revenue) is production. They can't satisfy the likes of HP or Dell with the number of chips they need for a box-shift mainstream product. When the "cat" cores were unveiled, they piddled on anything Intel were doing in their respective price points (SDP or whatever spin not withstanding). AMD are supply/process constrained while Intel have mothballed production lines waiting for orders.
 
That has to be some weird throttling situation or bios issue going on with the 7870k to get a much lower result.

Where the heck is a stock i5 2500k on that graph? (i'm almost scared to ask that question!)
 
You must log in or register to reply here.
Back
Top Bottom