decisions decisons decisons
resolution is 5760x1080 with all the eye candy on.
leaning toward the titan sli.
if you had this to make this decision. which and why?
Once the next gen of games starts to come out, a 2GB frame buffer is going to be on the low end and the GTX 690 will suffer from performance issues. Titan is a more future proof card (especially in SLI) due to enormous buffer and higher memory bandwidth
*checks join date... yep.
Future proof is a myth in the PC hardware world.
Once the next gen of games starts to come out, a 2GB frame buffer is going to be on the low end and the GTX 690 will suffer from performance issues. Titan is a more future proof card (especially in SLI) due to enormous buffer and higher memory bandwidth
What higher memory bandwidth? I agree that 2xtitans are a better choice then 2x690 but can you count? Memory capacity does not grow with SLI but memory bandwidth does, or do you really think that a card with 192 GB/s of bandwidth can achieve that performance?
do explain - since both memory are mirrored - how exactly does the bandwidth double accessing those mirrored memory?
He didn't say future proof, he said more future proof. There's a big difference if you ask me.
How not? In AFR each GPU works on its own frame and accesses whatever texture it needs. How would you get almost 4x the frame rates on an already bandwidth starved GK104 if it still had the same memory bandwidth? Each GPU has its own bus to its own memory pool. So GTX690 has 512bit bus and 384GB/s of aggregate bandwidth with a total of 4GB of memory but only 2GB effective memory capacity. With GTX690SLI It's kind of like having four hard drives with the same data, you can't say that you get the same performance with a single drive. Imagine it is like opening 4 instances of the same program, try to open them from one drive and then try to open them from 4 drives with each copy from different drive, assuming that I/O is the bottleneck not the CPU.
Not, Titan is not faster then 2x690 why do you guys think so? They are pretty evenly matched. 2x690 has better potential but it's limited by scaling.
But 2xTitan is still a better choice due to a much larger frame buffer.
that seems to make logical sense. with the exception - as long as the data being pulling by each gpu to render the next frame is available in vram.
I'm going to guess after a couple more driver releases for titan this will change. On the other hand, the GTX 690 is at the end of the road for potential gains.
Titan really isn't new marchitecture. It still belongs to the same 28nm Kepler (670/680 = GK104, Titan = GK110) line. So, driver should be already pretty mature. Plus, performance gain from further driver update should equally benefit 670/680 (GK104) as well as Titan (GK110).I'm going to guess after a couple more driver releases for titan this will change. On the other hand, the GTX 690 is at the end of the road for potential gains.
decisions decisons decisons
resolution is 5760x1080 with all the eye candy on.
leaning toward the titan sli.
if you had this to make this decision. which and why?
Not, Titan is not faster then 2x690 why do you guys think so? They are pretty evenly matched. 2x690 has better potential but it's limited by scaling.
But 2xTitan is still a better choice due to a much larger frame buffer.