Xeon E-2456 vs E3-1585 v5

Primary details

Comparing Xeon E3-1585 v5 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1097	434
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.78	no data
Market segment	Server	Server
Series	Intel Xeon E3	no data
Architecture codename	Skylake (2015−2016)	Raptor Lake-S
Release date	31 May 2016 (8 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$556	no data
Current price	$979 (1.8x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E3-1585 v5 and Xeon E-2456 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	6 (Hexa-Core)
Threads	8	12
Base clock speed	3.5 GHz	3.3 GHz
Boost clock speed	3.9 GHz	5.1 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	256 KB	80 KB (per core)
L2 cache	1 MB	1.25 MB (per core)
L3 cache	8 MB	18 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	no data	163 mm2
Maximum core temperature	100 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Xeon E3-1585 v5 and Xeon E-2456 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA1440	FCLGA1700
Power consumption (TDP)	65 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1585 v5 and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
eDRAM	128 MB	no data
Turbo Boost Technology	2.0	2
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	no data	+
Turbo Boost Max 3.0	no data	-
FDI	+	no data
Status	Discontinued	Launched

Security technologies

Xeon E3-1585 v5 and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	no data	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1585 v5 and Xeon E-2456 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1585 v5 and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	LPDDR3-1600, DDR4-2133	DDR5-4800
Maximum memory size	64 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	34.134 GB/s	no data
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel Iris Pro Graphics P580	N/A
Max video memory	64 GB	no data
Quick Sync Video	+	no data
Clear Video	+	no data
Graphics max frequency	1.15 GHz	no data
Execution Units	72	no data

Graphics interfaces

Available interfaces and connections of Xeon E3-1585 v5 and Xeon E-2456 integrated GPUs.

Number of displays supported

3

no data

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1585 v5 and Xeon E-2456.

PCIe version	3.0	5
PCI Express lanes	16	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

E-2456 outperforms E3-1585 v5 by 177% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	5.44	15.08
Recency	31 May 2016	14 December 2023
Physical cores	4	6
Threads	8	12
Power consumption (TDP)	65 Watt	80 Watt

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Should you still have questions on choice between Xeon E3-1585 v5 and Xeon E-2456, ask them in Comments section, and we shall answer.

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