AMD radeon 6000 series (big navi)

Chooka
Chooka
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At current prices, a new

At current prices, a new 6800XT is double the original price of the Radeon VII for about the same performance on E@H. (About the same price as a used Radeon VII in the current market though looking at completed sales on Ebay.)

That's just nuts. 

 


Ian&Steve C.
Ian&Steve C.
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Chooka wrote: At current

Chooka wrote:

At current prices, a new 6800XT is double the original price of the Radeon VII for about the same performance on E@H. (About the same price as a used Radeon VII in the current market though looking at completed sales on Ebay.)

That's just nuts. 

 

The Radeon VII is a better buy than the 6800 anyway, IMO. more utility for other projects like milkyway.

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archae86
archae86
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Maybe I had a bad sample, but

Maybe I had a bad sample, but my Radeon VII was troublesome from the beginning right through to the very end, many months later.  My two big Navi cards, and my preceding four Navi cards, by contrast, have almost always "just run" (once the firmware update that allowed Einstein tasks to validate came out months after the initial Navi availability).

For the time it came out, the Radeon VII performance on Einstein GRP work was indeed fabulous, but that competitive position was not matched across other important comparisons.

Chooka
Chooka
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Its funny you say that

Its funny you say that Archae86, because it was you who helped me fine tune my Radeon VII's.

I must admit, I do have some flakiness with one of them. For example, I came home to find a AMD bug report about a driver. The tasks had been running for 7hrs. If I pause crunching then restart, it fixes the issue and returns to normal. No idea what causes that but I guess it's part & parcel of crunching.

I sold off a Vega 56 for $200 more than I bought it for brand new so I'm happy to put some crunching on the back burner whilst these stupid prices are around.


Tom M
Tom M
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If I am reading the eBay

If I am reading the eBay listings right I might be able to sell two Rx 5700 gpus to "buy it now" a Rx 6800 xt.

Does this make sense?

Tom M

A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)

Ian&Steve C.
Ian&Steve C.
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Tom M wrote: If I am reading

Tom M wrote:

If I am reading the eBay listings right I might be able to sell two Rx 5700 gpus to "buy it now" a Rx 6800 xt.

Does this make sense?

Tom M

I think earlier in this thread, it was mentioned that the 6800 is a better buy than the 6800XT. the XT version is only slightly faster for Einstein.

 

The 6800 seems to be only ~10% faster than your 5700 so trading in 2x 5700 for 1x 6800 does not seem worth it. you will lose production overall.

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GWGeorge007
GWGeorge007
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Tom M wrote: If I am reading

Tom M wrote:

If I am reading the eBay listings right I might be able to sell two Rx 5700 gpus to "buy it now" a Rx 6800 xt.

Does this make sense?

Tom M

Tom, IMO I think you would be swapping out 2 for 1 and getting about the same performance.

https://gpu.userbenchmark.com/Compare/AMD-RX-6800-XT-vs-AMD-RX-5700/4089vs4046

But if you want to cut down the number of RX-5700 GPUs so you can run the more effective RX-6800XT GPUs, then go for it.

George

Proud member of the Old Farts Association

Tom M
Tom M
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Ian&Steve C. wrote:Tom M

Ian&Steve C. wrote:

Tom M wrote:

If I am reading the eBay listings right I might be able to sell two Rx 5700 gpus to "buy it now" a Rx 6800 xt.

Does this make sense?

Tom M

I think earlier in this thread, it was mentioned that the 6800 is a better buy than the 6800XT. the XT version is only slightly faster for Einstein.

 

The 6800 seems to be only ~10% faster than your 5700 so trading in 2x 5700 for 1x 6800 does not seem worth it. you will lose production overall.

The 6800 only being 10% faster doesn't seem to be quite right.  It is supposed to be faster than a Radeon VII?

https://www.techpowerup.com/gpu-specs/radeon-rx-6800.c3713

This shows a Rx 6800 xt under windows running considerably more than 10% faster than an Rx 5700.

https://einsteinathome.org/host/10706295

(1.4 Million vs about 1 Million)

Tom M

A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)

Tom M
Tom M
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GWGeorge007 wrote: Tom M

GWGeorge007 wrote:

Tom M wrote:

If I am reading the eBay listings right I might be able to sell two Rx 5700 gpus to "buy it now" a Rx 6800 xt.

Does this make sense?

Tom M

Tom, IMO I think you would be swapping out 2 for 1 and getting about the same performance.

https://gpu.userbenchmark.com/Compare/AMD-RX-6800-XT-vs-AMD-RX-5700/4089vs4046

But if you want to cut down the number of RX-5700 GPUs so you can run the more effective RX-6800XT GPUs, then go for it.

Historically I have tinkered with more than 2 gpu solutions that are not plugged directly into the MB.

And even with flat ribbon cables I am still having trouble with adding/switching systems.

So it occurred to me if I really could swap from 4 Rx 5700's to 2 Rx 6800xt's plugged directly into the MB I MIGHT be in a better place.

Tom M

A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)

GWGeorge007
GWGeorge007
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Tom M wrote: Historically I

Tom M wrote:

Historically I have tinkered with more than 2 gpu solutions that are not plugged directly into the MB.

And even with flat ribbon cables I am still having trouble with adding/switching systems.

So it occurred to me if I really could swap from 4 Rx 5700's to 2 Rx 6800xt's plugged directly into the MB I MIGHT be in a better place.

Think of it this way...  "Less is More", and if at all possible, don't mix your GPUs between AMD and NVIDIA.

George

Proud member of the Old Farts Association

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