![]() Archived from the original on June 6, 2007. ^ "How to decipher AMD's new CPU naming code".^ "AMD Expands Upcoming Processor Branding".^ "Final AMD "Stars" Models Unveiled"."Linux kernel patch reveals TLB bug's workings". Archived from the original on 3 January 2008. ^ "AMD Family 10h revision B2 Erratum 298 and L2 Eviction Bug Workaround".^ "High Performance AMD Phenom X4 Processors Lead the Charge to HD Desktop Gaming and Video".Archived from the original on 8 March 2008. ^ "Phenom TLB patch benchmarked: A look at how AMD's BIOS workaround impacts Phenom performance".^ "More Details on AMD "Stars" Chipsets". ![]() ^ "AMD to Drop "Athlon" Moniker on the High End".The program was said in December 2007 to have received "minimal functional testing." ĪMD launched several models of the Phenom processor in 20 and an upgraded Phenom II in late 2008. This method causes less performance loss than previous workarounds. Īn AMD subsidiary released a patch for the Linux kernel, to overcome this bug by software emulation of accessed- and dirty-bits. "B3" stepping Phenom processors were released Mawithout the TLB bug and with "xx50" model numbers. This penalty was not accounted for in pre-release previews of Phenom, hence the performance of early Phenoms delivered to customers may have been less than the preview benchmarks. BIOS and software workarounds disable the TLB, and typically incur a performance penalty of at least 10%. īefore Phenom's original release a flaw was discovered in the translation lookaside buffer (TLB) that could cause a system lock-up in rare circumstances Phenom processors up to and including stepping "B2" and "BA" are affected by this bug. The processors are on the Socket AM2+ platform. The first processor in the family was released in 2007.ĪMD considers the quad core Phenoms to be the first "true" quad core design, as these processors are a monolithic multi-core design (all cores on the same silicon die), unlike Intel's Core 2 Quad series which are a multi-chip module (MCM) design. Triple-core versions (codenamed Toliman) belong to the Phenom 8000 series and quad cores (codenamed Agena) to the AMD Phenom X4 9000 series. 16 in normal decimal numbers) processors, sometimes incorrectly called "K10h". The rest of the prices remain a mystery for now, but you can see that with the triple core parts AMD is going to have price them pretty low – good news for consumers bad news for AMD’s bottom line still.Phenom / f ɪ ˈ n ɒ m/ is the 64-bit AMD desktop processor line based on the K10 microarchitecture, in what AMD calls family 10h (10 hex, i.e. We only received pricing on the channel parts as follows: That means that you won’t see any results for the Phenom X3 triple-core processors today here either AMD has assured us that a launch for the channel is imminent for April so you won’t have to wait long. In fact, of all the brand new CPUs listed in the table above, only the ones in the orange font are going to be available for you to buy the rest are going straight to the system builders and OEMs. You can also see that AMD is making both a 125W and a 95W version of the CPU but you’ll only be able to buy the 125W version in the channel at places like Newegg, etc. The X4 9750 runs at 2.4 GHz but still uses the 3.6 GHz bus speed and the 1800 MHz memory controller speed. We are very curious to see how this change affects the processors performance overall. This also means that the memory controller on the Phenom X4 9850 is running at 2000 MHz versus the 1800 MHz that it ran at on the first series of Phenom CPUs. It is also a fully unlocked processor, though AMD has not given it the “Black Edition” moniker for whatever reason.Īlso notice that the Phenom X4 9850 is the first Phenom to use an updated bus speed of 4.0 GHz, with the 2000 MHz HyperTransport bus in full duplex mode. The X4 9850 that we are testing runs at 2.5 GHz, a cool 200 MHz increase over the previous B2 stepping top frequency of 2.3 GHz. Keep your eyes open for deals! What you get instead is all quad-core Phenoms, known as the X4, running on the updated and fixed B3 stepping along with some new clock speeds. As you would expect, any of the still available B2 stepping quad-core Phenom processors have reached the end of their short lives and will either be sold at a discount or sent back to AMD.
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