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. 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. 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. 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. Phenom II X4 940 UK Price (as reviewed): TBA Which GPU to Pick for AMD Phenom X4 9550īelow is a comparison of all graphics cards average FPS performance (using an average of 80+ games at ultra quality settings), combined with the AMD Phenom X4 9550.AMD's Phenom II X4 940 and 920 Manufacturer AMD However, don’t expect to get much beyond that without seriously upgrading your cooling solution and manually tweaking voltages behind the operating system level.įresh from a successful roll-out of mainstream Phenom X4 CPUs, AMD's attack on Intel now extends down into the high-end with its Phenom X4 9550 processors, which the company is making available as of on March 2008. The Phenom X4 9550 clocks up to 2.2Ghz just as it promises on the box, and with AMD’s software you can take one of the cores all the way up to 2.3GHz. That could save you money, reinforcing our decision to give the Phenom X4 9500 an Editor's Choice award. Value seekers who aren't afraid to press the Precision Boost Overdrive button and have sufficient cooling should look to the Phenom X4 9500 for roughly equivalent performance to the Phenom X4 9550, particularly if gaming factors heavily into the buying decision. Much of that performance advantage will be less noticeable when gaming at higher resolutions, or if you pair the processors with a lesser graphics card. We covered the deep dive details of the K10 chip design in our AMD Phenom X4 9600 and Phenom X4 9500 review, so head there for more information on the Phenom X4 9550's architecture, which is identical to the Phenom X4 9500.Īs we've seen, gaming remains an advantage for Intel, so if squeezing out every last frame is all you care about, Intel's processors are a good choice. As a result, Intel's commanding presence in the enthusiast space is threatened in a way we haven't seen in over a decade. The Phenom X4 9550 is based on the Agena 65nm family and is part of the Phenom X4 series.ĪMD's K10 series has landed, upping the ante with Intel in its high-stakes game for desktop PC market dominance with a well-rounded lineup of new chips that push mainstream platforms to higher core counts and more raw compute than we've ever seen. AMD Phenom Liczba rdzeni procesora 4 Typ gniazda procesora AMD Socket AM2+ Taktowanie bazowe procesora 2200 GHz Gwarancja 1 miesic. With base clock at 2.2GHz, max speed at 2.2GHz, and a 95W power rating. Amd Phenom 9550 na - Zrónicowany zbiór ofert, najlepsze ceny i promocje. It was released in 2008 with 4 cores and 4 threads. The Phenom X4 9550 is one of AMD's high-end Desktop processors. AMD Phenom Liczba rdzeni procesora 4 Typ gniazda procesora AMD Socket AM2+ Taktowanie bazowe procesora 3.
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