EPYC 9655 vs Xeon E5440

Primary details

Comparing Xeon E5440 and EPYC 9655 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2143	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	1.76	no data
Architecture codename	no data	Turin (2024)
Release date	1 January 2008 (16 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$11,852

Detailed specifications

Xeon E5440 and EPYC 9655 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	no data	96
Threads	no data	192
Base clock speed	2.83 GHz	2.6 GHz
Boost clock speed	no data	4.5 GHz
L1 cache	no data	80 KB (per core)
L2 cache	no data	1 MB (per core)
L3 cache	12 MB L2 Cache	384 MB (shared)
Chip lithography	45 nm	4 nm
Die size	no data	12x 70.6 mm2
Maximum core temperature	67 °C	no data
Number of transistors	no data	99,780 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5440 and EPYC 9655 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	no data	2
Socket	LGA771	SP5
Power consumption (TDP)	80 Watt	400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5440 and EPYC 9655. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data
Precision Boost 2	no data	+

Security technologies

Xeon E5440 and EPYC 9655 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5440 and EPYC 9655 are enumerated here.

AMD-V	-	+
VT-x	+	no data
EPT	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5440 and EPYC 9655. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E5440 and EPYC 9655.

PCIe version	no data	5.0
PCI Express lanes	no data	128

Pros & cons summary

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Recency	1 January 2008	10 October 2024
Chip lithography	45 nm	4 nm
Power consumption (TDP)	80 Watt	400 Watt

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