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. Here are some examples of searches: HD9650WCJ4BGH, AMD Phenom X4 2.3GHz, Agena 95 Watt, K10 4 cores 4 threads, 0. AMD is building the Phenom X4 9750 (125W) on a 65 nm production process using 450 million transistors. AMD Phenom X4 9550 Quad-Core DeskTop 2.2GHz CPU HD9550WCJ4BGH Socket AM2 Usage Scenario: Office PCIe VERSION: PCIe 2.0 Support Memory Channels: 2 Support. Phenom X4 9750 (125W) has 2MB of 元 cache and operates at 2.4 GHz. It is part of the Phenom X4 lineup, using the Agena architecture with Socket AM2+. 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. The AMD Phenom X4 9750 (125W) was a desktop processor with 4 cores, launched in March 2008. 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 Be sure to hit the read link for a (larger) peek at the chart - unless you just completed an order for a current-generation chip, that is.AMD's Phenom II X4 940 and 920 Manufacturer AMD The X2 CPUs go the dual-core route, top out at 2.8GHz, but won't be ready for ordering until Q4 of this year. The X4 chips ratchet down in speed a bit, and only handle the AM2+ socket while the top-end FX plays nice with the 1207+. The flagship quad-core Phenom FX (dubbed Agena FX) will clock in from 2.2GHz to 2.6GHz, sport 4 x 512KB of L2 cache, 2MB of 元 cache, and sport bus speeds of 3,200MHz or 3,600MHz. According to a roadmap slide charting out the future of AMD's "Stars" family of processors, a number of dual- and quad-core processor options will be headed to the desktop market sometime in the third and fourth quarters, and while the firm's "value" Athlon 64 X2 and Sempron chips will also see minor overhauls headed into Q1 of 2008, the focus seems to be on the Phenoms in the crew. Best Value XY Best Value (All time) AMD Phenom 9550 Quad-Core Description: Class: Desktop Socket: AM2+ Clockspeed: 2.2 GHz Cores: 4 Threads: 4 Typical TDP: 95 W Cache Size: L1: 512 KB, L2: 2.0 MB, 元: 2 MB Other names: AMD Phenom (tm) 9550 Quad-Core Processor CPU First Seen on Charts: Q4 2008 CPUmark/Price: 70. When it's been nearly six months since we've seen an elusive PowerPoint slide pointing to future AMD processors, it's been far too long, but it looks like the forecasting can begin again thanks to information about AMD's star-packed Q3. Get the competitive edge for AI, data center, business computing solutions & gaming with AMD processors, graphics, FPGAs, Adaptive SOCs, & software.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |