Schwarzgerät: Difference between revisions
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Note that our choice of scaling base can drastically change these calculations. At .75, there's little point going beyond the 6700K's four cores. At .99, the forty-four physical cores of a dual-socket Xeon 2699v4 are all contributing. I'll admit that the chosen 0.9 is something of a sweet spot for the 6950X vs the generally slower Xeons: its tenth core counts as a respectable 40% of its first. The octacore 6850K is close on its heels, while only the very largest Xeons top it in a single-socket configuration. Ignoring everything else, the dual-socket Xeon 2687Wv4 setup wins under this model. | The Skylakes have some nice qualities (DMI 3.0 to the southbridge, AVX512, better AES implementation, Sunrise Point chipset), but the raw power just isn't there for heavy parallelism. Also, as we'll see below, their PCIe bandwidth to the chip is severely limited (DMI 3.0 helps out a bit with this, but not terribly much). I suppose it's worth noting that the 6700K has Intel graphics built in. Skylake and Broadwell-E have TurboBoost 3.0, and (excluding the Skylake Xeon) unlocked clock multipliers for trivial overclocking. | ||
Note that our choice of scaling base can drastically change these calculations. At .75, there's little point going beyond the 6700K's four cores. At .99, the forty-four physical cores of a dual-socket Xeon 2699v4 are all contributing. I'll admit that the chosen 0.9 is something of a sweet spot for the 6950X vs the generally slower Xeons: its tenth core counts as a respectable 40% of its first. The octacore 6850K is close on its heels, while only the very largest Xeons top it in a single-socket configuration. Ignoring everything else, the dual-socket Xeon 2687Wv4 setup wins under this model. Awesome! I was hoping to go multi-socket. | |||
Let's not ignore everything else, though. A new table: | |||
{|class="wikitable" | |||
! Processor(s) | |||
! Scaled-base product | |||
! PCIe 3.0 lanes | |||
! Memory | |||
! Chipset(s) | |||
! TDP | |||
! Price | |||
|- | |||
| Skylake i7 6700K | |||
| 13.76 | |||
| 16 | |||
| | |||
| Z170 | |||
| | |||
| $320 | |||
|- | |||
| Broadwell-E i7 6950X | |||
| 19.53 | |||
| 40 | |||
| | |||
| X99 | |||
| | |||
| $1650 | |||
|- | |||
| Broadwell-E i7 6900K | |||
| 18.24 | |||
| 40 | |||
| | |||
| X99 | |||
| | |||
| | |||
|- | |||
| Broadwell-E i7 6850K | |||
| 16.88 | |||
| | |||
| | |||
| X99 | |||
| | |||
| | |||
|- | |||
| Broadwell-EP Xeon E5 2699v4 | |||
| 19.84 | |||
| 40 | |||
| 1536 DDR4 2400 | |||
| C612 / X99 | |||
| 145 | |||
| $4115 | |||
|- | |||
| Broadwell-EP Xeon E5 2697v4 | |||
| 19.55 | |||
| | |||
| | |||
| C612 / X99 | |||
| | |||
| | |||
|- | |||
| Broadwell-EP Xeon E5 2697Av4 | |||
| 21.19 | |||
| | |||
| | |||
| C612 / X99 | |||
| | |||
| | |||
|- | |||
| Broadwell-EP Xeon E5 2697Av4 x2 | |||
| 25.12 | |||
| | |||
| | |||
| C612 | |||
| | |||
| | |||
|- | |||
| Broadwell-EP Xeon E5 2687Wv4 | |||
| 21.54 | |||
| | |||
| | |||
| C612 / X99 | |||
| | |||
| | |||
|- | |||
| Broadwell-EP Xeon E5 2687Wv4 x2 | |||
| 27.60 | |||
| | |||
| | |||
| C612 | |||
| | |||
| | |||
|- | |||
| Broadwell-EP Xeon E5 2640v4 x2 | |||
| 21.07 | |||
| | |||
| | |||
| C612 | |||
| | |||
| | |||
|- | |||
|} | |||
===The mobo/chipset=== | ===The mobo/chipset=== | ||