780 Ti a good upgrade from 660ti sil
- Thread starter KingYodel
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huskersforever
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anbello262
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Why?
24A for each card is a total of 48A
The 780ti is only 42A
Then, why are you saying he should upgrade his PSU?
Rationale
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Two 660s in SLI should be running just about anything, so I'm not sure how big of an increase you'll really see in most games.
That said, a single stronger card is always preferable over 2 weaker cards. The only reason people should really go SLI or Xfire is if they don't have the money to buy a new stronger card and can only afford to add a duplicate weaker card to their existing build.
Two 660s will have scaling issues in some games, and they'll likely be less heat and power efficient.
That said, a single stronger card is always preferable over 2 weaker cards. The only reason people should really go SLI or Xfire is if they don't have the money to buy a new stronger card and can only afford to add a duplicate weaker card to their existing build.
Two 660s will have scaling issues in some games, and they'll likely be less heat and power efficient.
I have three monitors although I don't span the game across them. I recently bought http://www.amazon.com/gp/aw/d/B00EB7UIXM and the reason I'm using sli Is I didn't have enough to buy another powerful card so sli seemed an acceptable choice.
anbello262
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Even if it has 2 rail 12V PSU, the 780ti will use the power from 2 different PSU PCI connectors and the will most likely feed from different rails, as it did with the 2 different 660ti, so there shouldn't be a problem...
- Dec 26, 2012
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A 660ti as 2x 6-pin connectors. That's 2x 75+75, or 300w. Add that to the 300w for a pc (safety margin, fans, drives etc) and you need 600w psu.
150/12 is @12A the gpu needs, the remaining 12A the pc needs (660ti req 24A for system, not card). So sli 660ti req 600w, (12 + 12 + 12) 36A. A 780ti req 600w min, 42A, that's 12A for pc and 30A for gpu. Slight difference.
8-pin = 150w, 6-pin = 75w, PCIe = 75w, so honestly you could run a 780ti off a 550w quality psu, vrs 75w x6 or 450w for sli 660ti which leaves only 150w or pc from a 600w psu, much safer to sli with a 750w there.
Rails make absolutely no difference other than some 4-rails which use dedicated rails (1cpu, 2pcie, 3mobo+acc, 4pcie). They commonly have huge 3.3,5v amps, and 18amp 12v+ rails, good for servers, crap for gamers. Otherwise treat all rails as a single output. Just don't add. Usually 18a + 18a = 30 or 32A, built in safety margins.
150/12 is @12A the gpu needs, the remaining 12A the pc needs (660ti req 24A for system, not card). So sli 660ti req 600w, (12 + 12 + 12) 36A. A 780ti req 600w min, 42A, that's 12A for pc and 30A for gpu. Slight difference.
8-pin = 150w, 6-pin = 75w, PCIe = 75w, so honestly you could run a 780ti off a 550w quality psu, vrs 75w x6 or 450w for sli 660ti which leaves only 150w or pc from a 600w psu, much safer to sli with a 750w there.
Rails make absolutely no difference other than some 4-rails which use dedicated rails (1cpu, 2pcie, 3mobo+acc, 4pcie). They commonly have huge 3.3,5v amps, and 18amp 12v+ rails, good for servers, crap for gamers. Otherwise treat all rails as a single output. Just don't add. Usually 18a + 18a = 30 or 32A, built in safety margins.
JUICEhunter
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Tough call, I went from a single 670 to a 780ti and just love it, I'd imagine games that don't SLI well will give you that same rush I get, but for games that SLI well it will feel like more of a side-grade.
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