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Sapphire R9 290X after finalizing GB 780 Ti...

Tags:
  • AMD
  • Gigabyte
  • Sapphire
  • Nvidia
  • Asus
  • Graphics Cards
  • Physx
Last response: in PC Gaming
July 16, 2014 3:01:56 AM

Shortly after marking a recent post of mine (here: http://www.tomshardware.com/answers/id-2216059/asus-780...) as solved, something unexpected came up and I'm compelled to carry on here rather than continuing a solved post.

As I mentioned in that post, I was gonna go with the $740 GB 780 Ti. Now other very tempting options have raised their ugly heads, i.e., $640 (used) Sapphire R9 290X Tri-X OC and $620 HIS R9 290X IceQ X2.

Questions:
1. If I go with 290X, will I miss PhysX completely, or running through the CPU (for e.g. i7 3770) will yield the same results equivalent to a GPU? I love PhysX no matter how small the number of supporting games is, especially the games I played on PS3 without PhysX (like Mirror's edge) seem completely different games with it. I must replay them with PhysX so I need to know if there's a possibility to enable it with Radeons.

2. Corsair TX750 should be suffice its power needs, but does 290X (even non-ref) run so abnormally hot that I'll need a waterblock?

3. Other than PhysX, Adaptive VSync, Shadow-Play, HBAO(+), Experience and other miscellaneous Nvidia exclusives (if any), are there any other drawbacks related to preferring 290X over 780 Ti?

4. Should a used Sapphire still be considered superior to brand new Gigabyte and Asus (290X) variants?


EDIT:
5. Is "HIS R9 290X IceQ X2"a bad option?


Thanks very much.

More about : sapphire 290x finalizing 780

July 16, 2014 3:30:31 AM

AMD Radeon said:
Toms just did a review of mantle implementation on 290X.
http://www.tomshardware.com/reviews/amd-mantle-performa...

btw, what make the price so expensive?
http://pcpartpicker.com/parts/video-card/#sort=a8&qq=1&...

I believe Mantle is more of an optimization/efficiency/performance/FPS related thing, whereas PhysX is all about additional effects that AMD doesn't do. I'd prefer PhysX over Mantle any day.

Taxes, duties, grey market, individual monopolies etc. etc. etc. All these could be the potential causes behind such inflated and skyrocketed prices.
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July 16, 2014 7:14:10 AM

You won't be able to use full PhysX effects on your CPU. The performance hit will be too great as you try to render it on your 4-8 CPU cores versus the 2880 CUDA cores on the GTX 780 Ti. The only game where it might be possible to run PhysX on Medium is Borderlands 2. Other games usually don't even have the Advanced PhysX option available in the game settings if an AMD card is present. You will need to go with the Nvidia card or rule yourself out of the PhysX club for the lifetime of your purchase.

Here's a lot more info with benchmarks on CPU vs GPU if you dig around through the articles:
http://physxinfo.com/articles/
http://physxinfo.com/
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July 16, 2014 8:04:44 AM

17seconds said:
You won't be able to use full PhysX effects on your CPU. The performance hit will be too great as you try to render it on your 4-8 CPU cores versus the 2880 CUDA cores on the GTX 780 Ti. The only game where it might be possible to run PhysX on Medium is Borderlands 2. Other games usually don't even have the Advanced PhysX option available in the game settings if an AMD card is present. You will need to go with the Nvidia card or rule yourself out of the PhysX club for the lifetime of your purchase.

That's the most definitive answer I was looking for. Thanks mate.

But the bad news is that this (comparatively) cheap 780 Ti is gone now : - (.

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