Intel Xeon E5-2603 v3 vs Intel Xeon E5-2403

Comparative analysis of Intel Xeon E5-2603 v3 and Intel Xeon E5-2403 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, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon E5-2603 v3

Intel Xeon E5-2403

Differences

Reasons to consider the Intel Xeon E5-2603 v3

2 more cores, run more applications at once: 6 vs 4
2 more threads: 6 vs 4
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2x more maximum memory size: 768 GB vs 384 GB
Around 13% better performance in PassMark - Single thread mark: 905 vs 802
2.9x better performance in PassMark - CPU mark: 6758 vs 2367

Specifications (specs)
Number of cores	6 vs 4
Number of threads	6 vs 4
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	768 GB vs 384 GB
Benchmarks
PassMark - Single thread mark	905 vs 802
PassMark - CPU mark	6758 vs 2367

Reasons to consider the Intel Xeon E5-2403

Around 6% lower typical power consumption: 80 Watt vs 85 Watt

Thermal Design Power (TDP)	80 Watt vs 85 Watt

Compare benchmarks

CPU 1: Intel Xeon E5-2603 v3
CPU 2: Intel Xeon E5-2403

PassMark - Single thread mark

CPU 1

CPU 2

905

802

PassMark - CPU mark

CPU 1

CPU 2

6758

2367

Name	Intel Xeon E5-2603 v3	Intel Xeon E5-2403
PassMark - Single thread mark	905	802
PassMark - CPU mark	6758	2367
Geekbench 4 - Single Core	410
Geekbench 4 - Multi-Core	2164

Compare specifications (specs)

	Intel Xeon E5-2603 v3	Intel Xeon E5-2403
Essentials
Architecture codename	Haswell	Sandy Bridge EN
Launch date	Q3'14	May 2012
Place in performance rating	2471	2488
Processor Number	E5-2603V3	E5-2403
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® Processor E5 Family
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$230
Price now		$364.97
Value for money (0-100)		2.84
Performance
64 bit support
Base frequency	1.60 GHz	1.80 GHz
Bus Speed	6.4 GT/s QPI	6.4 GT/s QPI
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	72.8°C
Number of cores	6	4
Number of QPI Links	2	1
Number of threads	6	4
VID voltage range	0.65V–1.30V	0.6V-1.35V
Die size		294 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		10240 KB (shared)
Maximum frequency		1.8 GHz
Transistor count		1270 million
Memory
Max memory channels	4	3
Maximum memory bandwidth	51 GB/s	25 GB/s
Maximum memory size	768 GB	384 GB
Supported memory types	DDR4 1600	DDR3 800/1066
ECC memory support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	52.5mm x 45mm	45mm x 42.5mm
Sockets supported	FCLGA2011-3	FCLGA1356
Thermal Design Power (TDP)	85 Watt	80 Watt
Peripherals
Max number of PCIe lanes	40	24
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16
Scalability	2S	2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)