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Upgrading sytem - 2 GTX 570 SLI or 2 Radeon HD 7870 - Page 3

post #21 of 31
Quote:
Originally Posted by raghu78 View Post

"I currently have 2 GTX 550 TI running on 3 Viewsonic 24 inch at 5760x1080. What would be the best setup for a 5760x1080 setup. It seems both cards are at about the same price $250-$300, which is the max I can do. Any suggestions/advice?"
The OP started by asking for 2x GTX 570 or 2x HD 7870. his budget seems to be USD 600. the HD 7950 can be had for USD 300. the HD 7970 costs USD 400. thats the only reason to go HD 7950 x 2.
If I am reading your question correctly, get two HIS TurboQ 7950s for $300. Overclock them as much as possible while keeping temps down.
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post #22 of 31
With the recent price drops, the 2x7950 is the most performance you will get on a tri-monitor config right now for the budget.

If you want to go NV, wait a few weeks, they will have to respond with price drops of their own here soon to match. However, I think it's important to point out, that the higher memory bandwidth of the 7950 (compared to NV options that might drop to similar price points in the coming weeks), will result in better dual card scaling than NV right now. Dual GPU scaling has gone back and forth from AMD to NV for years, as it turns out, right now, AMD has the lead on this. The 7950 has more memory bandwidth than a GTX680. When cards are paired up, some of the performance aspects are doubled, but some are not. Memory bandwidth, is one of the areas that does not scale with multiple GPUs, so the best final performance and value when working with multiple card solutions, comes from cards that have lots of overhead memory bandwidth. Some folks may recall, the 6790, with the same core configuration as a 5770/6770 except for a 256bit memory bus. The result, was that 6790s scale in crossfire with near perfect doubling of performance in almost all supported titles, while the 5770/6770 scaling came with more varied results.

Lots of people talk about the 660Ti as being "bottlenecked" by it's 192bit bus and memory bandwidth, but that's actually incorrect in most single card configurations. The bottleneck on the 660Ti is typically the Render Output Units, which take the burden of the final draw and AA to screen. The thinner memory bus on the 660Ti would be a bottleneck in SLI, but is not the primary holdup that everyone has been lead to believe. Observing the actual core configuration of a card is more meaningful and revealing. Some benchmarking sites nail this stuff pretty well, some don't, be careful what you read and believe. A GTX660Ti, after it's price has been adjusted to compete with the 7870, will be very viable, in fact, it will be the better buy for folks who game on a single monitor.
Edited by mdocod - 8/25/12 at 12:33am
     
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post #23 of 31
Thread Starter 
What about getting two of these:

EVGA GeForce GTX570 HD 2560MB:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130687

EVGA 025-P3-1579-AR GeForce GTX 570 (Fermi) HD 2560MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

Will that support 5760x1080 with max on most games?
post #24 of 31
Quote:
Originally Posted by rhrtech View Post

What about getting two of these:
EVGA GeForce GTX570 HD 2560MB:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130687
EVGA 025-P3-1579-AR GeForce GTX 570 (Fermi) HD 2560MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Will that support 5760x1080 with max on most games?

Get 2x 660 Ti's if you want Nvidia. 2x AMD 7950's if you want higher OC headroom and performance.

660 Ti vs. 570 is no competition. http://www.techpowerup.com/reviews/ASUS/GeForce_GTX_660_Ti_Direct_Cu_II/28.html
Power consumption: 660 Ti uses 60W less than 570, on average. http://www.techpowerup.com/reviews/ASUS/GeForce_GTX_660_Ti_Direct_Cu_II/26.html
 
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post #25 of 31
Quote:
Originally Posted by rhrtech View Post

What about getting two of these:
EVGA GeForce GTX570 HD 2560MB:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130687
EVGA 025-P3-1579-AR GeForce GTX 570 (Fermi) HD 2560MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Will that support 5760x1080 with max on most games?

If you are going to spend around USD 300 on each card get a HD 7950. Overclocked HD 7950 competes with overclocked GTX 670.

http://www.hardocp.com/article/2012/08/23/galaxy_gtx_660_ti_gc_oc_vs_670_hd_7950/2

In fact there are users running a single overclocked HD 7950 to drive Eyefinity with high settings without MSAA. Here is a user running HD 7950 at 1160 Mhz in BF3 at Ultra without MSAA. around 45 fps avg.

http://www.overclock.net/t/1253670/any-benchmarks-for-single-7970-680s-running-at-5760x1080#post_17572917

For multi monitor HD 7950 is the best choice. because of its huge bandwidth and 3GB VRAM.
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post #26 of 31
Quote:
Originally Posted by raghu78 View Post

If you are going to spend around USD 300 on each card get a HD 7950. Overclocked HD 7950 competes with overclocked GTX 670.
http://www.hardocp.com/article/2012/08/23/galaxy_gtx_660_ti_gc_oc_vs_670_hd_7950/2
In fact there are users running a single overclocked HD 7950 to drive Eyefinity with high settings without MSAA. Here is a user running HD 7950 at 1160 Mhz in BF3 at Ultra without MSAA. around 45 fps avg.
http://www.overclock.net/t/1253670/any-benchmarks-for-single-7970-680s-running-at-5760x1080#post_17572917
For multi monitor HD 7950 is the best choice. because of its huge bandwidth and 3GB VRAM.
This. Just get 2 bloody 7950's and be done.
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post #27 of 31
Thread Starter 
I think I am leaning towards the HD 7950, I ruled out the GTX 660 TI because of the 192 bit memory. The HD 7950 has 3GB Ram and 384 bit memory, better for larger screens.

I hesitate towards ATI because I have had issues with ATI products before.
post #28 of 31
Quote:
Originally Posted by rhrtech View Post

I think I am leaning towards the HD 7950, I ruled out the GTX 660 TI because of the 192 bit memory. The HD 7950 has 3GB Ram and 384 bit memory, better for larger screens.
I hesitate towards ATI because I have had issues with ATI products before.


On one or two cards you can use any driver you want. There is minimal complexity unlike a quad setup. You click the driver.exe to install. You click the driver.exe to uninstall. Do those things and you won't have issues.
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post #29 of 31
Thread Starter 
I purchased 2 of Gigabyte AMD Radeon HD 7950 3GB GDDR5 DVI-I/HDMI/2x Mini-Displayport PCI-Express Graphic Card GV-R795WF3-3GD.
post #30 of 31
Quote:
Originally Posted by rhrtech View Post

I purchased 2 of Gigabyte AMD Radeon HD 7950 3GB GDDR5 DVI-I/HDMI/2x Mini-Displayport PCI-Express Graphic Card GV-R795WF3-3GD.
How much did you get 'em for?
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