The latency improvement is dependent on cache frequency however, and this has been dropped from 2.0GHz on the 98 Phenom X4s to 1.8GHz in both Phenom IIs. In conjunction with this, there has been a 50 percent increase in cache associativity from 32 to 48-way and also a two-cycle latency improvement. To aid this, there's also a "Coherent DRAM Prefetch" function that allows the memory controller to generate probes for DRAM prefetch requests too.īigger CacheIn terms of cache, the L1 and L2 cache sizes remain the same as the original Agena-based Phenom chips, but the 元 cache size has increased from 2MB to 6MB on the 45nm Phenom II. The DDR2 memory controller on the Phenom II CPUs has been upgraded though to including an adaptive prefetch scheme which adjusts the prefretching depth depending on the buffer space available, effectively better making use of available resources by allowing for more chances to have the data needed ready to use locally. These CPUs are AM2+ meaning DDR2 only, however AM3 arrives in February and supports both DDR2 and DDR3. In contrast, AMD's SOI technology stems on from its 65nm SOI process. The 45nm SOI fabrication process is slightly different to Intel's High-k Metal Gate which uses newer, alternative materials and was the biggest change in transistor technology since the 60s. This time around though, AMD claims its 45nm CPUs have a much greater performance overhead. Phenom X4 9600 has 2MB of 元 cache and operates at 2.3 GHz. Here are some examples of searches: HD9650WCJ4BGH, AMD Phenom X4 2.3GHz, Agena 95 Watt, K10 4 cores 4 threads, 0. It is part of the Phenom X4 lineup, using the Agena architecture with Socket AM2+. The latter, in particular, was AMD's single biggest problem with the 65nm Phenoms - the other "issue" was the limited overclocking and that caused enthusiasts to shy away and invest in Intel instead. Agena Codename Socket AM2+ Socket AMD Socket AM2+ The AMD Phenom X4 9600 was a desktop processor with 4 cores, launched in November 2007. The company's 45nm silicon on insulator (SOI) process allows for cooler CPUs, which affords AMD more thermal overhead for larger caches and higher clock speeds. You can count on more media coverage and updates on the new processors over the coming weeks. Phenom II X4 920 UK Price (as reviewed): TBAĪMD's 45nm CPUs have arrived and while some might claim "better late than never" seeing as Intel has been shipping its own for more than a year now, the rest of us might be pleased they have arrived at all, given the recent struggles inside the company. As the official launch of the AMD quad-core Opteron (Barcelona) processors in August and the desktop Phenom processors later this year draw close, AMD is rapidly ramping up media coverage of the new core architecture. Phenom II X4 940 UK Price (as reviewed): TBA Short for phenomenal, AMD chose the name to convey the perception that buying the processor will allow the user to experience a phenomenal level of performance.AMD's Phenom II X4 940 and 920 Manufacturer AMD Let's start with the new branding - Phenom.ĪMD felt that the new core architecture needed a new name, and what better name to give it than the Phenom. Nonetheless, they were able to give us an update of the upcoming desktop processors. That certainly doesn't sound too encouraging. In fact, AMD still isn't able to definitively confirm when they will launch the Agena/Kuma desktop processors, only that it will be released before the end of this year. Not only will they have greater processing capability than the current Opteron processors, they will also have a new three-tier cache structure, much better power efficiency and new virtualization capabilities.Īll that advanced capabilities may not be able to salvage AMD's situation though, especially since they gave Intel such a long, massive lead with the innumerable delays of the new processors. These processors comes with a whole range of interesting new features. Intel Core 2 Merom 65 291 143 AMD Phenom X4 Agena 65 463 285 4 bus. You can count on more media coverage and updates on the new processors over the coming weeks.Īs we have seen in the AMD Quad-Core Opteron (Barcelona) Technology Report, AMD will start with the launch of the server/workstation Quad-Core Opteron processors. Table 1.1 Characteristics of processor designs developed during 2000-2008. AMD Phenom Processor (Agena & Kuma) Pre-Launch UpdateĪs the official launch of the AMD quad-core Opteron (Barcelona) processors in August and the desktop Phenom processors later this year draw close, AMD is rapidly ramping up media coverage of the new core architecture.
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