Intel Xeon E5-2403 vs Intel Xeon 5148

Comparative analysis of Intel Xeon E5-2403 and Intel Xeon 5148 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon E5-2403

Intel Xeon 5148

Differences

Reasons to consider the Intel Xeon E5-2403

CPU is newer: launch date 5 year(s) 10 month(s) later
2 more cores, run more applications at once: 4 vs 2
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 65 nm
2.6x better performance in PassMark - CPU mark: 2367 vs 912

Specifications (specs)
Launch date	May 2012 vs June 2006
Number of cores	4 vs 2
Manufacturing process technology	32 nm vs 65 nm
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	2367 vs 912

Reasons to consider the Intel Xeon 5148

Around 29% higher clock speed: 2.33 GHz vs 1.8 GHz
4x more L2 cache, more data can be stored in the L2 cache for quick access later
2x lower typical power consumption: 40 Watt vs 80 Watt
Around 8% better performance in PassMark - Single thread mark: 868 vs 802

Specifications (specs)
Maximum frequency	2.33 GHz vs 1.8 GHz
L2 cache	4096 KB vs 256 KB (per core)
Thermal Design Power (TDP)	40 Watt vs 80 Watt
Benchmarks
PassMark - Single thread mark	868 vs 802

Compare benchmarks

CPU 1: Intel Xeon E5-2403
CPU 2: Intel Xeon 5148

PassMark - Single thread mark

CPU 1

CPU 2

802

868

PassMark - CPU mark

CPU 1

CPU 2

2367

912

Name	Intel Xeon E5-2403	Intel Xeon 5148
PassMark - Single thread mark	802	868
PassMark - CPU mark	2367	912

Compare specifications (specs)

	Intel Xeon E5-2403	Intel Xeon 5148
Essentials
Architecture codename	Sandy Bridge EN	Woodcrest
Launch date	May 2012	June 2006
Launch price (MSRP)	$230	$9
Place in performance rating	2487	2467
Price now	$364.97	$13.13
Processor Number	E5-2403	5148
Series	Intel® Xeon® Processor E5 Family	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	2.84	35.65
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	1.80 GHz	2.33 GHz
Bus Speed	6.4 GT/s QPI	1333 MHz FSB
Die size	294 mm	143 mm2
L1 cache	64 KB (per core)
L2 cache	256 KB (per core)	4096 KB
L3 cache	10240 KB (shared)
Manufacturing process technology	32 nm	65 nm
Maximum frequency	1.8 GHz	2.33 GHz
Number of cores	4	2
Number of QPI Links	1
Number of threads	4
Transistor count	1270 million	291 million
VID voltage range	0.6V-1.35V	1.150V-1.250V
Maximum core temperature		58°C
Memory
ECC memory support
Max memory channels	3
Maximum memory bandwidth	25 GB/s
Maximum memory size	384 GB
Supported memory types	DDR3 800/1066	DDR2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	45mm x 42.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1356	LGA771
Thermal Design Power (TDP)	80 Watt	40 Watt
Scenario Design Power (SDP)		0 W
Peripherals
Max number of PCIe lanes	24
PCI Express revision	3.0
Scalability	2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Physical Address Extensions (PAE)		32-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)