Intel Xeon E5-4603 vs Intel Xeon E5-1620

Comparative analysis of Intel Xeon E5-4603 and Intel Xeon E5-1620 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, 3DMark Fire Strike - Physics Score.

Intel Xeon E5-4603

Intel Xeon E5-1620

Differences

Reasons to consider the Intel Xeon E5-4603

CPU is newer: launch date 2 month(s) later
Around 2% higher maximum memory size: 384 GB vs 375 GB
Around 37% lower typical power consumption: 95 Watt vs 130 Watt
Around 14% better performance in PassMark - CPU mark: 6690 vs 5861

Specifications (specs)
Launch date	May 2012 vs March 2012
Maximum memory size	384 GB vs 375 GB
Max number of CPUs in a configuration	4 vs 1
Thermal Design Power (TDP)	95 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	6690 vs 5861

Reasons to consider the Intel Xeon E5-1620

Around 90% higher clock speed: 3.80 GHz vs 2 GHz
Around 77% better performance in PassMark - Single thread mark: 1766 vs 995

Specifications (specs)
Maximum frequency	3.80 GHz vs 2 GHz
Benchmarks
PassMark - Single thread mark	1766 vs 995

Compare benchmarks

CPU 1: Intel Xeon E5-4603
CPU 2: Intel Xeon E5-1620

PassMark - Single thread mark

CPU 1

CPU 2

995

1766

PassMark - CPU mark

CPU 1

CPU 2

6690

5861

Name	Intel Xeon E5-4603	Intel Xeon E5-1620
PassMark - Single thread mark	995	1766
PassMark - CPU mark	6690	5861
Geekbench 4 - Single Core		730
Geekbench 4 - Multi-Core		3096
3DMark Fire Strike - Physics Score		0

Compare specifications (specs)

	Intel Xeon E5-4603	Intel Xeon E5-1620
Essentials
Architecture codename	Sandy Bridge EP	Sandy Bridge EP
Launch date	May 2012	March 2012
Launch price (MSRP)	$712	$313
Place in performance rating	2107	2098
Price now	$1,890.99	$329.93
Processor Number	E5-4603	E5-1620
Series	Intel® Xeon® Processor E5 Family	Intel® Xeon® Processor E5 Family
Status	Discontinued	Discontinued
Value for money (0-100)	0.78	8.09
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.00 GHz	3.60 GHz
Bus Speed	6.4 GT/s QPI	0 QPI
Die size	294 mm	294 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	10240 KB (shared)	10240 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum frequency	2 GHz	3.80 GHz
Number of cores	4	4
Number of QPI Links	2	0
Number of threads	8	8
Transistor count	1270 million	1270 million
VID voltage range	0.6V-1.35V	0.60V - 1.35V
Maximum core temperature		64.0 °C
Memory
ECC memory support
Max memory channels	4	4
Maximum memory bandwidth	34.1 GB/s	51.2 GB/s
Maximum memory size	384 GB	375 GB
Supported memory types	DDR3 800/1066	DDR3 800/1066/1333/1600
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	1
Package Size	52.5mm x 45.0mm	52.5mm x 45.0 mm
Sockets supported	FCLGA2011	FCLGA2011
Thermal Design Power (TDP)	95 Watt	130 Watt
Peripherals
Max number of PCIe lanes	40	40
PCI Express revision	3.0	3.0
Scalability	4S 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® 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
Intel® vPro™ Platform Eligibility
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)