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Intel"s Xeon E5-2697 V2 và 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 set extensions that Westmere-EP or Ivy Bridge-EP support. Getting close to 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 tiền 32-bit build of Geekbench on a pre-release build of OS X Mavericks. Switching over lớn 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 kiểm tra 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 & floating-point components, but clearly a more real-world comparison was needed in order lớn establish the new Xeon’s performance in a workstation environment. Fortunately, I have the upcoming Xeon E5-2697 V2, the upcoming vi xử lý core i7-4960X, an existing eight-core Xeon E5-2687W, & a vi xử lý 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 khổng lồ 150 W, vi xử lý core counts between two and eight, and 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 and cloud boxes, & storage appliances are all driven by carefully picked Xeon E5s.

A transition lớn the Ivy Bridge architecture sees hãng sản xuất intel increment its nomenclature lớn the Xeon E5-16xx/24xx/26xx/46xx V2 series. A corresponding shrink to lớn 22 nm manufacturing lets the company địa chỉ cửa hàng more cores và L3 cache without violating the thermal limits imposed last generation. Expect to see 10-core models rated for as little as 70 W, 12-core models that hit 130 W, & 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 to lớn guess. It"s a 12-core processor with 3 MB total on-die L2 cache & 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 to 3.3 GHz with three cores active & 3.2 GHz with four. So long as thermals allow, spinning five cores up drops you to 3.1 GHz. From six to lớn 12 active cores, the Xeon E5-2697 V2 tops out at 3 GHz.

As with the Ivy Bridge-E-based core i7-4960X we previewed, hãng sản xuất 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, & 8 GT/s up & down the V2 line-up, but the -2697 V2 specifically sports a pair of link at that vị trí cao nhất specification.


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