Intel Xeon E5-2603: specs and benchmarks

Summary
Intel started Intel Xeon E5-2603 sales 6 March 2012 at a recommended price of $207. This is Sandy Bridge EP architecture desktop processor primarily aimed at office systems. It has 4 cores and 4 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 1800 MHz and a locked multiplier.
Compatibility-wise, this is FCLGA2011 processor with a TDP of 80 Watt. It supports DDR3-800, DDR3-1066 memory.
It provides poor benchmark performance at 2.69 percent of a leader's which is AMD EPYC 7763.
General info
Of Xeon E5-2603 processor market type (desktop or notebook), architecture, sales start time and pricing.
Technical specs
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
Compatibility
Information on Xeon E5-2603 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one.
Technologies and extensions
Technological capabilities and additional instructions supported by Xeon E5-2603. You'll probably need this information if you require some particular technology.
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
Memory specs
Types, maximum amount and channel number of RAM supported by Xeon E5-2603's memory controller.
Peripherals
Specifications and connection types of supported peripherals.
Benchmark performance
Single-core and multi-core benchmark results of Xeon E5-2603. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Overall score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario.
Game benchmarks
Let's see how good Xeon E5-2603 is for a gaming PC, compared with system requirements of some popular titles. Remember that sometimes official hardware requirements may reflect real performance inaccurately.
Relative perfomance
Overall Xeon E5-2603 performance compared to nearest competitors among server CPUs.