I am seeking a little advice before spending a ton of money on new video card(s) this year, and this seemed like the place to do it. I read the 'best of' article before posting as recommended but still want/need some opinions/thoughts on 2 things. Before I start, here is a guideline for my choices - I am looking to buy an EVGA card(s) (I have best luck with them), I want to keep it under $900-1,000 US dollars. If it helps, I am upgrading from a 2GB EVGA 660GTX Sig2.
My first question - 4GB 770 vs 3GB 780 - Is the 780 really faster?
Here is my inquiry: The 4GB 770's have 256 bit Memory, and the 780's have 384 bit, BUT... the 4GB 770's boast clock speeds of over 1100mhz, and the 780's are only around 900mhz. to make it even harder to decide to me, the 770's Memory Clock is rated at 7010mhz, vs the 780's which are at 6008mhz. So which should I care more about - Bit size or Clock speeds? Will the 3GB 384-bit 780 really be faster than the 4GB 265-bit 770, considering it's higher clock speeds & extra 1GB of Memory? ..and what about the # of cuda cores - how much of a difference will they make - should I care about them more? (The info on Cuda cores and speed seem kinda vague to me after googling them all morning)
Here are the 2 cards I am comparing above if it helps:
4GB 770 - http://www.newegg.com/Product/Product.aspx?Item=N82E16814130948
3GB 780 - http://www.newegg.com/Product/Product.aspx?Item=N82E16814130951
My second question - Would it be worth it to SLi either card above, or stay single card?
Like I said, I my goal is to get a significant increase of performance over my current card, an EVGA 2GB 660 GTX Sig 2. If I can get a big enough boost with one card, I'll settle for just one card for now, and maybe SLi with a 2nd card later - my reasoning here is I believe I would need to upgrade my 650 watt PSU to something like an 850 watt or something, which is going to cost me more $$, obviously.
Any advice or opinions would be appreciated, and thanks for your time to anyone who reads this.
My first question - 4GB 770 vs 3GB 780 - Is the 780 really faster?
Here is my inquiry: The 4GB 770's have 256 bit Memory, and the 780's have 384 bit, BUT... the 4GB 770's boast clock speeds of over 1100mhz, and the 780's are only around 900mhz. to make it even harder to decide to me, the 770's Memory Clock is rated at 7010mhz, vs the 780's which are at 6008mhz. So which should I care more about - Bit size or Clock speeds? Will the 3GB 384-bit 780 really be faster than the 4GB 265-bit 770, considering it's higher clock speeds & extra 1GB of Memory? ..and what about the # of cuda cores - how much of a difference will they make - should I care about them more? (The info on Cuda cores and speed seem kinda vague to me after googling them all morning)
Here are the 2 cards I am comparing above if it helps:
4GB 770 - http://www.newegg.com/Product/Product.aspx?Item=N82E16814130948
3GB 780 - http://www.newegg.com/Product/Product.aspx?Item=N82E16814130951
My second question - Would it be worth it to SLi either card above, or stay single card?
Like I said, I my goal is to get a significant increase of performance over my current card, an EVGA 2GB 660 GTX Sig 2. If I can get a big enough boost with one card, I'll settle for just one card for now, and maybe SLi with a 2nd card later - my reasoning here is I believe I would need to upgrade my 650 watt PSU to something like an 850 watt or something, which is going to cost me more $$, obviously.
Any advice or opinions would be appreciated, and thanks for your time to anyone who reads this.