Intel Xeon E-2456 vs Intel Xeon E5-2651 v2

Comparative analysis of Intel Xeon E-2456 and Intel Xeon E5-2651 v2 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 E-2456

Intel Xeon E5-2651 v2

Differences

Reasons to consider the Intel Xeon E-2456

CPU is newer: launch date 10 year(s) 1 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 10 nm vs 22 nm
2.5x more L2 cache, more data can be stored in the L2 cache for quick access later

Launch date	14 Dec 2023 vs November 2013
Manufacturing process technology	10 nm vs 22 nm
L2 cache	1.25 MB (per core) vs 3 MB

Reasons to consider the Intel Xeon E5-2651 v2

6 more cores, run more applications at once: 12 vs 6
12 more threads: 24 vs 12
Around 60% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 67% more L3 cache; more data can be stored in the L3 cache for quick access later

Number of cores	12 vs 6
Number of threads	24 vs 12
L1 cache	768 KB vs 80 KB (per core)
L3 cache	30 MB vs 18 MB (shared)
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Xeon E-2456
CPU 2: Intel Xeon E5-2651 v2

Name	Intel Xeon E-2456	Intel Xeon E5-2651 v2
PassMark - Single thread mark	3604
PassMark - CPU mark	21002
Geekbench 4 - Single Core		2030
Geekbench 4 - Multi-Core		18071

Compare specifications (specs)

	Intel Xeon E-2456	Intel Xeon E5-2651 v2
Essentials
Launch date	14 Dec 2023	November 2013
Launch price (MSRP)	$375
Place in performance rating	322	327
Architecture codename		Ivy Bridge-EP
Family		Intel Xeon E5-2600 v2
Processor Number		E5-2651 v2
Vertical segment		Server
Performance
Base frequency	3.3 GHz	1800 MHz
Die size	163 mm²
L1 cache	80 KB (per core)	768 KB
L2 cache	1.25 MB (per core)	3 MB
L3 cache	18 MB (shared)	30 MB
Manufacturing process technology	10 nm	22 nm
Maximum core temperature	100°C
Maximum frequency	5.1 GHz
Number of cores	6	12
Number of threads	12	24
Unlocked
64 bit support
Bus Speed		5 GT/s DMI
Memory
ECC memory support
Supported memory types	DDR5	DDR3
Max memory channels		4
Maximum memory size		768 GB (per socket)
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	1700	LGA2011
Thermal Design Power (TDP)	80 Watt
Peripherals
PCIe configurations	Gen 5, 16 Lanes, (CPU only)
PCI Express revision		3.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)