Thoughts on a single Vega vs R9 290s in CF

[guskline]

Have R9 290s in CF in rig 2 below and very happy with their performance especially since they are custom water cooled. What are your thoughts on a single Vega outperforming my 2 R9 290s in CF?

 

[MrTeal]

Not enough information yet, but I would guess that even if CF scaling is working well, Vega 10 will still outperform 290CF. At an absolute minimum you're probably looking a similar die size to Hawaii, so a doubling of Hawaii's performance isn't out of line.

 

[hawtdawg]

Have R9 290s in CF in rig 2 below and very happy with their performance especially since they are custom water cooled. What are your thoughts on a single Vega outperforming my 2 R9 290s in CF?

impossible to say. If AMD goes balls out, they could theoretically make a 8192 core monster GPU on this node if they wanted to.

 

[MrTeal]

impossible to say. If AMD goes balls out, they could theoretically make a 8192 core monster GPU on this node if they wanted to.

True, but even that's not necessary. A 290 is 2560 shaders, and single chip shader scaling should always be better than crossfire. If they fix the massive issue Fiji has with balance (obviously at the cost of die size), I think a 4096 shader Vega part would be better than R9 290 CF even when CF is working.

 

[thesmokingman]

Fundamentally a single card is better, especially if it is twice the speed. That said, it's too early to make any educated guesses because there's zero stats out.

 

[tential]

I think vega will be better but I don't think you'll be unhappy with crossfire as long as I works. The upgrade would be the get more stable performance

 

[Headfoot]

Given that an overclocked 980 Ti isn't much slower than 290 CF (when its working) I think OC'd Vega will easily beat it

 

[flopper]

Have R9 290s in CF in rig 2 below and very happy with their performance especially since they are custom water cooled. What are your thoughts on a single Vega outperforming my 2 R9 290s in CF?

easily.
history shown a die shrink does just that.

 

[moonbogg]

Or sell the 290's and get TWO VEGAS! But yeah I bet a single Vega would be better in most cases. We'll know in two months. Two loooong months.

 

[MrTeal]

Or sell the 290's and get TWO VEGAS! But yeah I bet a single Vega would be better in most cases. We'll know in two months. Two loooong months.

Assuming we find out much about Vega at Computex.

I don't know why anyone would get two Vegas though. SKL-E is going to support three full x16 slots, so it would seem like V10 Trifire should be a standard system configuration come 1H2017.

 

[RussianSensation]

impossible to say. If AMD goes balls out, they could theoretically make a 8192 core monster GPU on this node if they wanted to.

AMD doesn't need to do that since CF scaling is not 100% across all games. If CF scaling was consistently at 90-100%, you'd have a point. Just 25% faster than Fury X is going to provide similar performance to max OCed 290 in CF, but in all games, regardless of CF scaling.

Even now a max overclocked 980Ti provides better gaming performance than dual 290s in CF. It's a foregone conclusion that when comparing 290s OC CF, Vega OC will beat them in smoothness.

Or sell the 290's and get TWO VEGAS! But yeah I bet a single Vega would be better in most cases. We'll know in two months. Two loooong months.

Vega is launching late 2016/early 2017, or probably 9-10 months away.

Assuming we find out much about Vega at Computex.

I don't know why anyone would get two Vegas though. SKL-E is going to support three full x16 slots, so it would seem like V10 Trifire should be a standard system configuration come 1H2017.

PCIe lanes don't matter anyway, at least for AMD. Even going all the way down to PCIe 1.1 x8, the performance hit is only 6%. Fury X Tri-Fire on PCIe 3.0 x8 on a 5820K for a 1% performance hit at 4K. Who cares.

OP, set up Ethereum mining on those rigs and you'll get free Vega CF/Tri-Fire upgrade. Nothing to think or worry about since you already have the cards and they are quiet courtesy of water-cooling. Every day you miss is $7 lost in earnings. In about 95-100 days, that's already 1 Vega card paid for and that's not counting the resale value on those 290 cards towards the 2nd Vega card.

 

[Silverforce11]

We will know more soon when Polaris 11 and 10 show up, as we can judge the IPC gains better then.

Basically Polaris 10 2560 SP, if it easily beats the 390X, it means there's some real nice gains on the uarch.

And we apply that to Vega 10 with the HBM2 advantage, yeah, for sure, it will smash CF R290.

 

[guskline]

Thanks for the input. I'm staying pat till Vega launches. BTW, my 2 R9 290s beat my single GTX980TI on most benchmarks by a small amount but the single card is smoother. I hope the high end Vega comes with HBM2 and 8G.

Finally, moonbogg, aren't you going to ditch those dual GTX980TIs for the new P100?

 

[R0H1T]

Thanks for the input. I'm staying pat till Vega launches. BTW, my 2 R9 290s beat my single GTX980TI on most benchmarks by a small amount but the single card is smoother. I hope the high end Vega comes with HBM2 and 8G.

Finally, moonbogg, aren't you going to ditch those dual GTX980TIs for the new P100?

You mean 16GB or 8GB :hmm:

I'd be massively disappointed if it comes with anything less than 16GB, of course there might be 8GB variants, as evidenced by the success of 390(x) besides the extra VRAM will always help in CF & 8K

 

[moonbogg]

Thanks for the input. I'm staying pat till Vega launches. BTW, my 2 R9 290s beat my single GTX980TI on most benchmarks by a small amount but the single card is smoother. I hope the high end Vega comes with HBM2 and 8G.

Finally, moonbogg, aren't you going to ditch those dual GTX980TIs for the new P100?

Those garbage 980ti's in my box? They are the source of my daily suffering. They will be replaced with large die GPU's, probably around the time you grab your Vega. I won't buy any of the mid range cards coming out soon.

 

[n0x1ous]

They will be replaced with large die GPU's, probably around the time you grab your Vega. I won't buy any of the mid range cards coming out soon.

Amen, Likewise for me

 

[Aristotelian]

Thanks for the input. I'm staying pat till Vega launches. BTW, my 2 R9 290s beat my single GTX980TI on most benchmarks by a small amount but the single card is smoother. I hope the high end Vega comes with HBM2 and 8G.

Finally, moonbogg, aren't you going to ditch those dual GTX980TIs for the new P100?

I think I recall you mentioning a wife in the picture, so - I recommend listening to what other people said for a different reason. Lay low for a while, and upgrade those 2 290s with a high end vega. Then, go back to your 980Ti rig and replace that with a 1080Ti, and argue all the while that - this time - the upgrades will last aaaaages

 

[guskline]

I think I recall you mentioning a wife in the picture, so - I recommend listening to what other people said for a different reason. Lay low for a while, and upgrade those 2 290s with a high end vega. Then, go back to your 980Ti rig and replace that with a 1080Ti, and argue all the while that - this time - the upgrades will last aaaaages

Yes my wife and I have a deal after 42 years of marriage. I don't look at the Talbot's bill or boxes and she looks the other way when Newegg boxes come. (Heck she even bought me a Newegg gift card for my birthday!:thumbsup

 

[RussianSensation]

Yes my wife and I have a deal after 42 years of marriage. I don't look at the Talbot's bill or boxes and she looks the other way when Newegg boxes come. (Heck she even bought me a Newegg gift card for my birthday!:thumbsup

The most impressive part of that post is 42 years of marriage. Congrats on that part!! I genuinely mean it as I'll never achieve that milestone of yours! Cheers to 50th and 60th anniversary.

 

[guskline]

Thank you RussianSensation. The "icing" on the cake is our 5 grandchildren (and 6th on the way). Our two oldest daughters and their husbands have their undergraduate degrees from Villanova University so the last few weeks have been a wild ride!

 

[moonbogg]

The most impressive part of that post is 42 years of marriage. Congrats on that part!! I genuinely mean it as I'll never achieve that milestone of yours! Cheers to 50th and 60th anniversary.

How old are you? I'll ditch my wife and kids and we can elope. I'll be your man for 42 years. Buy me video cards. They are the key to my heart.

 

[thilanliyan]

How old are you? I'll ditch my wife and kids and we can elope. I'll be your man for 42 years. Buy me video cards. They are the key to my heart.

You just want a Canadian passport don't you?!!