The Low Cost Sandy Bridge-E
In the conclusion to my original story looking at the performance characteristics of the Sandy Bridge-E platform, I wrote this:
I am most interested in the Core i7-3930K (as I think most of you will be), but we are going to have to wait a bit to see if we can get performance and power results for that part.
Well good readers, I am here with that information! After getting my hands on the Core i7-3930K processor that makes up the other 50% of the available options for the X79 chipset motherboards, I can definitively say that THIS is the processor you want. Unless you are crazy-go-nuts rich.
With a clock speed only about 2.5% lower than its bigger brother yet a price that is 44% lower, the LGA2011 socket definitely has its enthusiast favorite.
The Sandy Bridge-E Summary
I am not going to bother reprinting everything that we discussed about the new Sandy Bridge-E processor architecture, the X79 chipset and platform changes here though if you haven't read about them before today, you should definitely take a look at my earlier article.
Here is a quicker summary:
The answer might surprise you, but truthfully not a whole lot has changed. In fact, from a purely architectural stand point (when looking at the x86 processor cores), Sandy Bridge-E looks essentially identical to the cores found in currently available Sandy Bridge CPUs. You will see the same benefits of the additional AVX instruction set in applications that take advantage of it, a shared L3 cache that exists between all of the cores for data coherency and the ring bus introduced with Sandy Bridge is still there to move data between the cores, cache and uncore sections of the die.
Turbo Boost technology makes a return here as well with the updated 2.0 version in full effect - there are more steppings in scalability on this part than on the Nehalem or Westmere CPUs.