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Whats better? Two 7790's in CrossfireX or 1 7850?

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July 24, 2013 3:17:20 PM

Hey, I'm building two of my friends computers, and I have found a 7790 really cheaper (£55), and I want to know whats cheaper two 7790's in CrossfireX or 1 7850?

7790: http://bit.ly/114zlUb

7850: http://bit.ly/170lvkL

Also whats better

Two 7790's or one 7870?

7870: http://bit.ly/11euyQ2

Would you mind looking at another topic of mine too?

Edit: All cards will be OC'ed.
July 24, 2013 3:25:17 PM

The one 7870.

For the record, single GPU configs usually have less problems than SLI or Crossfire configs.
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July 24, 2013 3:28:01 PM

John Bauer said:
The one 7870.

For the record, single GPU configs usually have less problems than SLI or Crossfire configs.


Ok, what about the 7850 and the 7790's though?
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July 24, 2013 3:38:50 PM

Ummm ... the site you list has it for 55,47 GBP and the 7850 for 129,30 GBP . Do the math. ;) 

As you can see here:

http://www.techpowerup.com/reviews/AMD/HD_7790_CrossFir...

Two 7790s come in 18% better than a 7870

But CF is broken and never did work too well on the low end cards
http://www.anandtech.com/show/6857/amd-stuttering-issue...
http://www.tomshardware.com/reviews/graphics-card-bench...

http://www.techpowerup.com/reviews/AMD/HD_7790_CrossFir...
Quote:
After running the Radeon HD 7790 CrossFire combo through our test suite, it is clear that CrossFire support is still lacking and hasn't improved significantly in the last months. Major titles like Assassin's Creed 3, Skyrim, and World of Warcraft show terrible or negative CrossFire scaling, or none at all. New is that Hitman Absolution wouldn't load at all at 2560x1600.

When scaling works, it works very well, improving performance by around 80% compared to a single card. We singled out some of these games, such as Battlefield 3. HD 7790 CrossFire could be a pick if you happen to play them often. This certainly sounds nice, but you also have to consider potential scaling issues with yet unreleased games.

The dual-card HD 7790 CrossFire setup costs $300, which means it competes with the HD 7950 Boost ($300) and GTX 670 ($360). To be honest, right now I'd rather have a slightly slower HD 7950 that works with more games, or cough up a bit more money to buy a GTX 670, which is definitely more trouble-free. At this time, I can't recommend buying two HD 7790s for CrossFire just to save a bit of money.


On the other hand ...... the 650 Ti Boost is No. 1 in the performance per dollar category and in SLI it beats the 680 and 7970 Ghz Ed
http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_6...

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_6...
Quote:
After running the GeForce GTX 650 Ti Boost SLI through our test suite, I have to admit that I'm impressed. The duo delivered performance easily matching and often exceeding much more expensive single-card options such as the GeForce GTX 680 and Radeon HD 7970 GHz Edition, and they don't cost as much. SLI multi-GPU scaling works well with all of our titles except for F1 2012. Scaling by going from one to two GTX 650 Ti Boost cards is around 70%, even with F1 2012 taken into account. Unlike AMD, NVIDIA does a good job of maintaining its SLI profiles, so you should be able to play new games without a long wait for multi-GPU support.


Of course, Im not up on pricing in your neck of the woods so that can throw everything I just wrote outta kilter :) 
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July 24, 2013 3:55:13 PM

JackNaylorPE said:
Ummm ... the site you list has it for 55,47 GBP and the 7850 for 129,30 GBP . Do the math. ;) 

As you can see here:

http://www.techpowerup.com/reviews/AMD/HD_7790_CrossFir...

Two 7790s come in 18% better than a 7870

But CF is broken and never did work too well on the low end cards
http://www.anandtech.com/show/6857/amd-stuttering-issue...
http://www.tomshardware.com/reviews/graphics-card-bench...

http://www.techpowerup.com/reviews/AMD/HD_7790_CrossFir...
Quote:
After running the Radeon HD 7790 CrossFire combo through our test suite, it is clear that CrossFire support is still lacking and hasn't improved significantly in the last months. Major titles like Assassin's Creed 3, Skyrim, and World of Warcraft show terrible or negative CrossFire scaling, or none at all. New is that Hitman Absolution wouldn't load at all at 2560x1600.

When scaling works, it works very well, improving performance by around 80% compared to a single card. We singled out some of these games, such as Battlefield 3. HD 7790 CrossFire could be a pick if you happen to play them often. This certainly sounds nice, but you also have to consider potential scaling issues with yet unreleased games.

The dual-card HD 7790 CrossFire setup costs $300, which means it competes with the HD 7950 Boost ($300) and GTX 670 ($360). To be honest, right now I'd rather have a slightly slower HD 7950 that works with more games, or cough up a bit more money to buy a GTX 670, which is definitely more trouble-free. At this time, I can't recommend buying two HD 7790s for CrossFire just to save a bit of money.


On the other hand ...... the 650 Ti Boost is No. 1 in the performance per dollar category and in SLI it beats the 680 and 7970 Ghz Ed
http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_6...

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_6...
Quote:
After running the GeForce GTX 650 Ti Boost SLI through our test suite, I have to admit that I'm impressed. The duo delivered performance easily matching and often exceeding much more expensive single-card options such as the GeForce GTX 680 and Radeon HD 7970 GHz Edition, and they don't cost as much. SLI multi-GPU scaling works well with all of our titles except for F1 2012. Scaling by going from one to two GTX 650 Ti Boost cards is around 70%, even with F1 2012 taken into account. Unlike AMD, NVIDIA does a good job of maintaining its SLI profiles, so you should be able to play new games without a long wait for multi-GPU support.


Of course, Im not up on pricing in your neck of the woods so that can throw everything I just wrote outta kilter :) 


Also, I've used that site before, the "," is supposed to be a ".".
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