Sign in with
Sign up | Sign in

Dual Xeon Double Offer

Two Xeon CPUs Are Better Than One Intel P4 Extreme Platform
By

In Task Manager, two real and two virtual processors are shown.

As a rule, every Socket 604 Xeon CPU is suitable for HyperThreading technology. The E7505 is capable of simultaneously operating with two processors, as well as with HyperThreaded applications. As a result, four processors (two physical and two virtual) are available for the operating system. Nevertheless, the chipset has only one CPU interface, which means that both processors have to share one bus. At a speed of 133 MHz (533 MHz QDR), a bandwidth of 4.2 GB per second results. In a worst-case scenario, each virtual CPU will receive only one data flow at only 1 GB per second. However, this could have negative effects only with some OpenGL applications.

On the left, the Xeon and on the right, the P4 Northwood from Intel

The Intel Xeon (code name "Prestonia") is based on the same core as the Pentium 4 "Northwood". The latter operates with an FSB of 200 MHz (800 MHz QDR), and compiles at 6.4 GB per second. In order to balance out the up to 34% lower bandwidth with the Xeon, Intel also offers models with 1 or 2 MB L3 cache, beginning with the 2.4 GHz versions.

Prices For Current Xeon Processors

Intel Xeon Processor (Socket 604)
Processor Codename FSB L2 Cache L3 Cache Price per 1000
Xeon 2.0 GHz Prestonia 133 MHz 512 kB n/a $198
Xeon 2.4 GHz Prestonia 133 MHz 512 kB n/a $209
Xeon 2.66 GHz Prestonia 133 MHz 512 kB n/a $256
Xeon 2.8 GHz Prestonia 133 MHz 512 kB n/a $316
Xeon 3.06 GHz Prestonia 133 MHz 512 kB n/a $455
Xeon 2.4 GHz Prestonia 133 MHz 512 kB 1024 kB $316
Xeon 2.8 GHz Prestonia 133 MHz 512 kB 1024 kB $455
Xeon 3.06 GHz Prestonia 133 MHz 512 kB 1024 kB $690
Xeon 3.2 GHz Prestonia 133 MHz 512 kB 1024 kB $581
Xeon 3.2 GHz Prestonia 2M 133 MHz 512 kB 2048 kB $1043

An analysis of availability and prices shows that 2.66 GHz models provide the best price-performance ratio. Intel's next step is to increase the FSB to 200 MHz (800 MHz QDR). Once again, this will mean new chipsets.

Ask a Category Expert

Create a new thread in the Reviews comments forum about this subject

Example: Notebook, Android, SSD hard drive

There are 0 comments.
This thread is closed for comments