Intel xeon e5

Intel"s Xeon E5-2697 V2 & Leaked Benchmarks

Pre-Production Benchmark Data Isn’t Always What It Seems

There were probably some bummed-out professionals, then, when a Geekbench result was recently uploaded to Primate Labs’ online browser showing that 12-core Xeon E5 around nine percent faster than last generation’s dual six-core Mac Pro, based on Westmere-EP.

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Source: Geekbench Browser, Primate Labs

Those scores require a bit of context, though. The 32-bit build of Geekbench uses x87 code, for starters, so it isn’t optimized for any of the other instruction mix extensions that Westmere-EP or Ivy Bridge-EP support. Getting close lớn Apple’s claim of doubled floating-point performance requires software compiled with the AVX flag. John Poole, the founder of Geekbench, posted several other reasons why the next-gen and previous-gen Mac Pros might be separated by such a narrow margin.

The leaked result was run using the không tính phí 32-bit build of Geekbench on a pre-release build of OS X Mavericks. Switching over to the paid 64-bit build of the benchmark adds SSE support, though that’s still a pre-Pentium 4 extension. Tab between the 32- và 64-bit runs on Xeon X5675-based systems và you’ll find that the SSE-capable build averages 14%-better performance.

Curious as to lớn how the very same 12-core Xeon E5-2687 V2 compared in Windows, I ran my own demo on a 64-bit build of Geekbench & scored in excess of 30,000 points—more than 25% faster than the leaked number. The individual sub-tests showed both Xeon E5-based platforms trading blows in the integer và floating-point components, but clearly a more real-world comparison was needed in order to establish the new Xeon’s performance in a workstation environment. Fortunately, I have the upcoming Xeon E5-2697 V2, the upcoming core i7-4960X, an existing eight-core Xeon E5-2687W, và a chip core i7-3970X.

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Meet The Xeon E5-2697 V2

Intel"s original Xeon E5 family was based on the Sandy Bridge architecture. Launched more than a year ago, they spanned thermal ceilings from 50 to lớn 150 W, chip core counts between two và eight, & price points between $188 & $3620 (for the highest-end quad-socket-capable models). Truly, this was a processor line-up with something for everyone. Entry-level small business servers, powerful workstations, rack-mounted virtualization và cloud boxes, & storage appliances are all driven by carefully picked Xeon E5s.

A transition khổng lồ the Ivy Bridge architecture sees hãng sản xuất intel increment its nomenclature to lớn the Xeon E5-16xx/24xx/26xx/46xx V2 series. A corresponding shrink khổng lồ 22 nm manufacturing lets the company add more cores và L3 cache without violating the thermal limits imposed last generation. Expect khổng lồ see 10-core models rated for as little as 70 W, 12-core models that hit 130 W, and a number of TDPs in between. All the while, hãng intel maintains 256 KB of L2 cache và a 2.5 MB slice of shared L3 per core.

Most of the Xeon E5-2697 V2"s specifications are consequently pretty easy lớn guess. It"s a 12-core processor with 3 MB total on-die L2 cache và 30 MB of shared L3. A base clock rate of 2.7 GHz jumps as high as 3.5 GHz with Turbo Boost enabled and just one bộ vi xử lý core active. With two utilized, the clock rate tops out at 3.4 GHz. Frequency drops khổng lồ 3.3 GHz with three cores active & 3.2 GHz with four. So long as thermals allow, spinning five cores up drops you lớn 3.1 GHz. From six khổng lồ 12 active cores, the Xeon E5-2697 V2 tops out at 3 GHz.

As with the Ivy Bridge-E-based chip core i7-4960X we previewed, hãng intel facilitates DDR3 data rates of up lớn 1866 MT/s. Basic RAS modes and ECC are enabled. You"ll see QPI transfer rates of 6.4, 7.2, và 8 GT/s up and down the V2 line-up, but the -2697 V2 specifically sports a pair of links at that top specification.