3.0 GHz plus a lot of tweaking headroom (we reached 3.8 GHz stable). So let's recap a little what the advantage of Phenom II are over Phenom I: But let's rack up the processor line in order to get a better perspective of differences. Mind you that within the series, some Phenom II processors have slightly smaller caches (the Phenom II X4 800 series processors). Hey, wanna see what the processor die looks like ? Well that and the 3.0~3.2 GHz clock frequencies of course. 元 is where the magic happens though and is probably the reason for Phenom II's success. That's 8 MB of cache and then we have not even accounted for another 512KB total L1 per processor. Phenom II can address 6MB 元 cache shared among cores as a buffer, so is can exchange data in-between the four logical cores. Both the Phenom II X4 955BE and 945 feature a total 2MB L2 cache 512KB per core.īut: a big change is the increase in 元 cache. These Phenom II parts as explained are based on AMD's 45nm Silicon on Insulator process technology. Black Edition processors support software-selectable increases to memory controller, HyperTransport, DDR3 and CPU core frequency. Model Number & Core Frequency: X4 945 = 3.0GHzīoth processors are virtually the same with the exceptions of a 200 MHz clock frequency differential and the fact that the 955bBE edition is more catered for overclocking as it will have its multiplier and voltages unlocked.Model Number & Core Frequency: X4 955 Black Edition = 3.2GHz.The Phenom 945 will run at a respectable 3.0 GHz at a full 2.0 GHz HT 3.0 speed at a 0.875 to -1.5V voltage and both of these new processors have an improved 125W TDP (peak wattage), these processors are Socket AM2+ and AM3 compatible. If you have 4GB installed, Windows will indicate less than 4GB is available.The newest flagship product will be the Phenom II X4 955BE, this processor will run at 3.2 GHz. In addition, the 32-bit versions of Windows will reserve a portion of memory for critical system functions such as chipset, BIOS flash, PCI Express, etc. The AMD64 CPU and the Intel EM64T CPU support this instruction set. ‧ The CPU must support the X64 instruction set. ‧ The BIOS must support the memory remapping feature. ‧ The chipset must support at least 8GB of address space. ‧ An 圆4 (64-bit) version of Windows system. To take advantage of the system memory 4GB or above installed, the computer must meet the following requirements:
The available memory may report approximately 3.12 GB or less depends on system configurations. For more information, please refer to folllowing message from Microsoft.ĭue to PC architectural requirements such as motherboard resources and OS limitations,desktop platforms using 4GB or above memory may be unable to take full advantage of all memory populated on the system. The answer is no due to OS 32 bit limitation.
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