Intel Xeon E7-2820 vs Intel Xeon E7-2803

Comparative analysis of Intel Xeon E7-2820 and Intel Xeon E7-2803 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization.

Intel Xeon E7-2820

Intel Xeon E7-2803

Differences

Reasons to consider the Intel Xeon E7-2820

2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12

Number of cores	8 vs 6
Number of threads	16 vs 12

Compare specifications (specs)

	Intel Xeon E7-2820	Intel Xeon E7-2803
Essentials
Architecture codename	Westmere EX	Westmere EX
Launch date	Q2'11	Q2'11
Place in performance rating	not rated	not rated
Processor Number	E7-2820	E7-2803
Series	Intel® Xeon® Processor E7 Family	Intel® Xeon® Processor E7 Family
Status	Discontinued	Discontinued
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.00 GHz	1.73 GHz
Bus Speed	5.86 GT/s QPI	4.8 GT/s QPI
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	64°C	64°C
Maximum frequency	2.27 GHz
Number of cores	8	6
Number of threads	16	12
Memory
Max memory channels	4	4
Maximum memory size	1 TB	1 TB
Supported memory types	DDR3 800/978/1066/1333 (Max Speed 1066 MHz)	DDR3 800/978/1066/1333 (Max Speed 800 MHz)
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	49.17mm x 56.47mm	49.17mm x 56.47mm
Sockets supported	LGA1567	LGA1567
Thermal Design Power (TDP)	105 Watt	105 Watt
Peripherals
Scalability	2S	2S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)