I posted in the surround thread to, will check your posting. I posted this if you are lazy:
Anandtech has a great article now about 1440p max settings (not surround)
Onoe the things I love is how they mention my 1366 platform and can still "somewhat compete" even with today's setup:
LONG QUOTE, But GREAT READ (Click to show)
If you invested in an i7-920, like I did, and are lucky enough to run a nice D0 stepping CPU, then some bases are covered on the single and dual GPU front, although there are some holes were Nehalem is clearly not with the leading pack of CPUs.
Of course with socket 1366 CPUs there are some compromises. The motherboards with these CPUs do not have PCIe 3.0 (which is shown to look important in multi-GPU setups), nor do not have USB 3.0 / SATA 6 Gbps native, meaning you’ll be scrounging around for mid-performing controllers at best. Features such as Thunderbolt are but a wish unless you are willing to upgrade.
The most direct comparison for us is the i7-950 to the i7-4770K – here we have two processors both quad core with hyperthreading, with the 4770K taking a small MHz lead and a large IPC lead. Going back through our benchmark scenarios, the 4770K needs a PLX board to support some nice 3- and 4- way GPU setups, but there is a clear CPU advantage on the side of Haswell. The triple channel memory support of Nehalem was a big plus point when it was launched, but as we can now kit out our dual channel mainstream platforms with 2400 C10 memory with relative ease (or more if you are that way inclined), that memory bandwidth advantage is shorter.
If you were lucky/rich enough to jump on the extreme end of Westmere (i7-980, i7-980X or i7-990X), then having that hex-core system will keep a small advantage in multithreaded tests over the top performing Haswell solution (PovRay on 4770K = 1612.68, on i7-990X = 1636.40). The IPC advantage that Haswell comes with shows itself to be useful in most multi-GPU setups, whereas for our other single and some dual GPU benchmarks the performance difference between the two processors is almost negligible. When you hit three-way GPU configurations, it is all about the lane counts.
Now what would be interesting.... Upgrade now to a 980x or really spend the $1,500 on an Asus RIVE, 4930K/3930K 16-32GB of Ram and see how my Surround 1600p SLI Titan will really jump...
Still inconclusive imo
Across our benchmark range, the i7-4960X and i7-4770K are similar in results, where single and dual GPU results are on par with each other across the board. When we start moving into tri-GPU setups, there are several things to consider:
- the x8/x8 + x4 PCIe allocation on Z87 is bad
- the x8/x4/x4 PCIe allocation on Z87 fares better
- having a PLX chip on a Z87 for x16/x8/x8 is best, but this more expensive
- You don’t have to worry about this with an i7-4960X
- But going Ivy Bridge-E is more expensive to begin with