I saw this on gearslutz for what it is worth: From this thread: http://www.gearslutz.com/board/music-computers/704309-e5-xeon-benchmarks.html (also see post 9 below "E5 Already in Channel") "Its time again with several new products coming out shortly. usual place Benchmarks for Pro Audio! 2nd graph down. tests are done using Dawbench DSP/RXC/Cubase DAW Bench : DAW Performance Benchmarking first up the Quad core Sandy E 3820 3.6GHz (already released) stock speed. 256 296 128 288 64 270 32 252 this is performing very close to the 6 core 3960K (3.33GHz) and 3930k (3.2GHz) stock speeds. This certainly makes a case of GHz over core count or in this case where GHz (3.6) catches up with more cores of a slower ghz (3.3) overclocked to 4.2GHz (oddly for the first time almost not worth talking about) in comparison to the 3930k/2630k @ 4.5GHz, but it does edge out the 2600k @ 4.5GHz barely. 256 323 128 311 64 293 32 273 >>>>>>>>>>>>>>>> now for a surprise i was NOT expecting. the new Intel E5 Xeon E5 2670 2 .6GHz 8 core this is for a SINGLE Xeon 8 core not a pair. I have a pair but no board at the moment that works well) this was dropped into a standard X79 board. bear in mind this is a $1600-1700 processor so dont get too excited. 256 436 128 411 64 398 32 322 this slow 2.6GHz 8 core 20 meg cache beat everything @ every buffer other than 32 where the 3690k/3630k @ 4.5GHz took a decent lead (353) so much for GHz over core count (my mantra)... other than @ 32buffer. only thing i can think of is the added cache is really making a difference with effects processing. this Xeon is the same silicon as the other Sandy E's so i cant explain the increase with just 2 more cores @ a lower GHz yet i am not surprised its performance drooped @ 32 buffer as this is rather the norm on muliltprocessor rigs. (more cores but lower GHz) i also have an Ivy Bridge 3770k and a board coming for the Dual Xeon E5 so more to come in a week or so "we didnt run up any animations tests but for Adobe the 8 core did really bad for the MPE. Premiere Pro CS5 Version 5.5 Testing Video material - AVCHD 1080P 24 Frame Each Cut to 30 minutes of material Export Codec - H264 HDTV 1080P 24 Preset Default 4 Effects per Layer - Fast Color Corrector, Brightness & Contrast, Video Limiter, Sharpen Each Layer Scaled to 50% for 4 frame PinP view. I7 2600K 4.7 GHz 16GB Blackline 1600 CL 9 570GTX 4 WD 1Tb Sata 64 Meg Cache 600 Drives in 2 Raid 0 arrays 3 Layer - 30:46 4 Layer - 33:36 X79 3.3 @ 4.5 GHz 32GB 1333 580GTX 3GB 4 1Tb Sata 32 Meg Cache 600 Drives in 2 Raid 0 arrays CS5.5.2 3 Layer - 27:43 4 Layer - 30:02 E5 2670 @ 2.6 GHz <--- single not dual 32GB 1600 570GTX 2.5GB 4 1Tb Sata 32 Meg Cache 600 Drives in 2 Raid 0 arrays CS5.5.2 3 Layer - 4 Layer - 40:41 <--- pretty slow but since you own an Apple here it is. Mac Pro 2010 Dual 2.93GHz 24GB 1600 CL 9 Quadro 4000 2 WD 1Tb Sata 64 Meg Cache 600 Drives in Raid 0 3 Layer - 42:24 4 Layer - 44:05"