AMD's Athlon 64 3400,oakley youtube
Our customary synthetic memory benchmarks will start us off,cheap oakley sunglasses, and we can see how the A64 3400+'s single channel of DDR400 memory compares to the dual channel solutions so common nowadays.The results show a clear difference between the 3400+ and the dual channel solutions. These synthetic benchmark scores may not translate directly into real world performance, but they may be a primary reason for the existence of the dual channel Athlon 64 FX.The only real difference between the Athlon 64 3400+ and the A64 FX 51 is the number of memory channels, as Linpack demonstrates. The two processors perform identically until matrix sizes become large enough for main memory to matter. Note, though, how the A64 3400+'s on die memory controller allows it to achieve much higher throughput than the Athlon XP 3200+. In fact, the 3400+ just barely falls behind the Pentium 4 3.2GHz, and then only at the largest matrix sizes.Memory latency is the 3400+'s real strength. The dual channel Athlon 64 FX requires registered DIMMs, and those add a cycle of latency to memory accesses. As a result, the 3400+ beats everything in our memory latency test. Notice, especially, the massive latency difference between the Athlon XP 3200+ and the Athlon 64 3400+, which run at the same 2.2GHz clock speed. This is one of the main reasons why AMD is now able to run with the Pentium 4 so well. Let's dwell on this point with some 3D graphs.

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