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post #11 of 34
Correction. Probably the ASUS Sabertooth can do x16 x16. But you don't get USB 3.1.

3 x PCIe 2.0 x16 (dual x16 or x16/x8/x8) *1

https://www.asus.com/us/Motherboards/SABERTOOTH_990FX_R20/specifications/

So x16 on one GPU and x8 on the second, must be the limit of the chipset.


Also i found this about x16 x8 vs x8 x8:
Quote:
You are correct that two x16 lanes will give the best performance. However, all multi GPU will only ever have the need for dual x8 lanes, for now. The performance difference between two x16 lanes and two x8 lanes is very minimal, at best. Something like 1600 CL9 RAM vs 1866 CL9 RAM.

And motherboards with dual x16 lanes are actually quite expensive, and are usually associated with Extreme series CPUs (Two x8 lanes on an AMD board is quite rare, so talking about Intel here), so along with getting an expensive extreme series CPU, you'll need that expensive extreme series motherboard.

Most boards will support dual x8 lanes. A x16/x8 board is.. nonexistent? Because I believe if you're using SLI, it'll be using dual x8 lanes.

http://www.tomshardware.co.uk/answers/id-2054999/whats-sli-pci-x16-x16.html

Edited by Undervolter - 6/17/16 at 12:14pm
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post #12 of 34
Thread Starter 
wel that's some nice reads biggrin.gif

to bad i dont have the money for the sabertooth motherboard frown.gif
post #13 of 34
Quote:
Originally Posted by ZoePancakes View Post

wel that's some nice reads biggrin.gif

to bad i dont have the money for the sabertooth motherboard frown.gif

Honestly, since x8 x8 is almost not an issue, i 'd simply get the ASUS AURA. If you read Newegg comments, the only "serious" issue with this motherboard is that when you reboot, the aura lighting you had chose doesn't "stick" and it reverts to the default (changing colours).

http://www.newegg.com/Product/Product.aspx?Item=N82E16813132713

Otherwise, just get the Gigabyte 990X Gaming.

But honestly, all Gigabyte users have a complaint with the BIOS. I also have Gigabyte and the BIOS, as organization alone, is by far the worst i 've seen between Asrock and Biostar. Let alone the bugs. Gigabyte with BIOS without bugs is almost impossible.

And Gigabyte doesn't support well with BIOS, they just release new revision. That's why in Gigabyte boards, you find so many revisions. Instead of fixing the BIOS of a board, they just release new motherboard revision. My motherboard is still with a BETA BIOS 2 years after purchase. They don't care, i am sure this beta BIOS is the last BIOS i will see. They simply released revision 2 of the motherboard to fix the bugs and they introduced new bugs in that.
Edited by Undervolter - 6/17/16 at 1:23pm
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post #14 of 34
Quote:
Originally Posted by ZoePancakes View Post

may i ask why the lower cpu version ?

AMD has gotten excellent yields on the 32nm process that the FX processors are made on for a long time now. Like all mature processes, the fabs eventually work out all of the issues and nearly every CPU that rolls off the line will reach top performance. Basically, everything that comes out is a 9590, or at least an 8370, but AMD has to down-bin some of the chips to meet the lower price points. Even an FX-8300 should have no problem making 4.5 GHz these days. Literally nobody who buys a new Vishera reports a poor overclocking chip anymore.

Getting golden overclockers when an AMD processor is near EOL is a time-honored tradition. A lot of times, they don't even seem to bother speed-binning them at the end. They just mark them all for some SKU that they know they will pass, and then blow them out cheap to make room for the new inventory. We're not quite to that point yet, but we have long ago reached the point where it's incredibly unlikely that you would get a poor OC chip regardless of what model you choose.
     
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post #15 of 34
Quote:
Originally Posted by Undervolter View Post

Honestly, since x8 x8 is almost not an issue, i 'd simply get the ASUS AURA. If you read Newegg comments, the only "serious" issue with this motherboard is that when you reboot, the aura lighting you had chose doesn't "stick" and it reverts to the default (changing colours).

http://www.newegg.com/Product/Product.aspx?Item=N82E16813132713

Otherwise, just get the Gigabyte 990X Gaming.

But honestly, all Gigabyte users have a complaint with the BIOS. I also have Gigabyte and the BIOS, as organization alone, is by far the worst i 've seen between Asrock and Biostar. Let alone the bugs. Gigabyte with BIOS without bugs is almost impossible.

And Gigabyte doesn't support well with BIOS, they just release new revision. That's why in Gigabyte boards, you find so many revisions. Instead of fixing the BIOS of a board, they just release new motherboard revision. My motherboard is still with a BETA BIOS 2 years after purchase. They don't care, i am sure this beta BIOS is the last BIOS i will see. They simply released revision 2 of the motherboard to fix the bugs and they introduced new bugs in that.


So Undervolter, what you are saying is that Gigabyte not only is in the gpu and motherboard business, they also are in the insect business! On a serious note it is too bad because the motherboards are pretty solid as far as hardware.
post #16 of 34
Thread Starter 
1 more question

8350 or 8320 are better then the a10 7870k and 4x 880k right as i can only find apu benches of the first one and the last one only hardwarecanucks benchmarks
post #17 of 34
Quote:
Originally Posted by ZoePancakes View Post

1 more question

8350 or 8320 are better then the a10 7870k and 4x 880k right as i can only find apu benches of the first one and the last one only hardwarecanucks benchmarks

The Kaveri and Godavari parts have higher per-clock performance because they're on the newer Steamroller core, and have about 5-10 percent more performance than an 8350 or 8320 at the same clock. However, they also are limited to only four cores. A Vishera has eight, and while that didn't matter a few years ago when it comes to gaming, there are many times now when it does. The Visheras are also better overclockers. To hit very high clocks on Steamroller chips requires the use of an expensive motherboard--something like a Crossblade Ranger or an A88X-PRO that can set you back upwards of $120-150, and by "hitting very high clocks," we mean something like 4.7 GHz. Nearly any Vishera you might buy can beat that, and when you add in the four extra cores, it's usually a better choice than an Athlon.

The 8x0K Athlons are better choices for a budget gaming rig, paired with a cheaper FM2+ board and something no stronger than an R9 380. With a 780Ti, you're better off with a Vishera.
     
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post #18 of 34
Thread Starter 
Ok good to know

This pc will need to survive until beginning 2017 when ill go Zen, then i will turn this pc into the htpc for gaming at the television ^^
post #19 of 34
I just put together a pc with the Asus 970 Pro Gaming/Aura and a FX8320e. I have had little trouble getting to 4.6Ghz @ 1.45v once I got accustomed to the Asus Bios. I am certain I can get a bit more out of it, but it seems to be stable. One of my other PCs is an A10-7870k (Godavari) on a Gigabyte itx Mobo. One of the gigabyte bios bugs I experienced is that when overclocking with "Cool and Quiet" turned off, the comp would boot and only 2 out of 4 cores would be at the x44 multiplier. The other two were bottomed out at x17! Until I found out that turning cool and quiet back on in the bios I had to manually overclock through AMD Overdrive in order to wake up the other two cores. I had to do this each time I booted up and wanted to have all cores for gaming.

The Godavari comp was a HTPC so I didn't need to have all cores working for normal browsing and streaming.

I don't think a H80i will handle extreme overclocking, but should work alright.
post #20 of 34
Quote:
Originally Posted by jsc1973 View Post

AMD has gotten excellent yields on the 32nm process that the FX processors are made on for a long time now. Like all mature processes, the fabs eventually work out all of the issues and nearly every CPU that rolls off the line will reach top performance. Basically, everything that comes out is a 9590, or at least an 8370, but AMD has to down-bin some of the chips to meet the lower price points. Even an FX-8300 should have no problem making 4.5 GHz these days. Literally nobody who buys a new Vishera reports a poor overclocking chip anymore.

Getting golden overclockers when an AMD processor is near EOL is a time-honored tradition. A lot of times, they don't even seem to bother speed-binning them at the end. They just mark them all for some SKU that they know they will pass, and then blow them out cheap to make room for the new inventory. We're not quite to that point yet, but we have long ago reached the point where it's incredibly unlikely that you would get a poor OC chip regardless of what model you choose.

I guess I'm unlucky - I picked up a 4350 and a 8370 about 4 months ago, both chips won't clock like my older chips will and those are at least two years older.
First off let me clarify that I'm talking about really pushing the limits, not just OC'ing it for everyday use or for gaming.

I've also seen it said elsewhere others were reporting the older chips would go higher before stopping, the newer chips respond better to voltage but then run into a hardwall thery can't seem to over come no matter what you do.
I can't speak to all that but I have noticed my older 4300 and 8320 will clock higher than the two new chips do overall within the same described conditions, the fact the 8370 seems poor in comparison to the 8320 is a suprise but so far thats how it's been.
I have since picked up a pair of 8300's, both are of an identical date, stepping and all (1605PGS) except for the serial number and were bought a few weeks apart. These should do the same and I'm hoping at least one will defy the trend I've experienced..... But again remember I'm talking about really leaning on these chips hard so for everyday or gaming useage it's more or less irrelevant.

I have seen more than once an older dated chip outdo an identical chip of the same or even a higher model with a newer date/stepping with a trend for this to be true overall within a given date/stepping range, kinda like chips made within that date range were crappy for some reason, then it got better afterwards.
Just sayin..... rolleyes.gif
Edited by Kryton - 6/17/16 at 9:46pm
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