System architecture wise, both platforms are well developed - optimised dual-channel DDR3 memory, decent PCIe performance (although Intel P55 needs more PCIe lanes for everything, whether dual graphics at 16X each, or extra PCIe for USB3 and SATA3 controllers), and upgradeability.
Intel Core i7-870 vs AMD Phenom II 965BE
Review Price for performance (FINAL WORDS)
Intel
AMD
System architecture wise, both platforms are well developed - optimised dual-channel DDR3 memory, decent PCIe performance (although Intel P55 needs more PCIe lanes for everything, whether dual graphics at 16X each, or extra PCIe for USB3 and SATA3 controllers), and upgradeability.
However, as mentioned before, AMD really needs an improvement to its basic core performance. Even if I disabled the Turbo Boost completely, the Intel CPU would only be some 3 per cent to 7 per cent slower in the benchmarks shown here. That still wouldn't change the picture significantly, and the picture is that, clock for clock, core for core, with the surrounding systems as similar as possible, and - importantly - price levels as similar as possible, Intel's platform is still ahead.
Of course, with the right price coupled with some power usage reductions, the AMD Phenom II is still more than good enough for most desktop applications, but price alone should not be the only argument to use.
So, the AMD Phenom II is on its own a great CPU nevertheless and, even if AMD ends up late with the Bulldozer next generation, there is still room for AMD to optimise performance rather than just fight on the price front. One approach could be for AMD to move the six-core Istanbul die into the Phenom II socket and let you have six cores.
In my mind, that's not the right choice as the clock speed would invariably suffer and frankly, there is not that much desktop software that can use six cores. However, adding more L3 cache while lowering its latency and tuning up the cores to get another 10 per cent or more of per-clock performance could be a good interim solution. Remember, Intel's six core Westmere-based Gulftown high-end CPU for workstations and desktops is less then six months away, and is most likely held back simply because Intel has no competition in that space. A year from now, the first Intel Sandy Bridge cores with further speedups like twice the floating-point unit throughput are expected, so the least we can hope for is that AMD's Bulldozer comes out a little earlier...
More here: TheInquirer







