EPYC 9255 vs Core 2 Extreme X7800

Primary details

Comparing Core 2 Extreme X7800 and EPYC 9255 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2689	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core 2 Extreme	no data
Power efficiency	1.55	no data
Architecture codename	Merom XE (2007)	Turin (2024)
Release date	17 July 2007 (17 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	$851	$2,495

Detailed specifications

Core 2 Extreme X7800 and EPYC 9255 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	2 (Dual-core)	24 (Tetracosa-Core)
Threads	2	48
Base clock speed	2.6 GHz	3.25 GHz
Boost clock speed	2.6 GHz	4.8 GHz
Bus rate	800 MHz	no data
L1 cache	128 KB	80 KB (per core)
L2 cache	4 MB	1 MB (per core)
L3 cache	4 MB L2 Cache	128 MB (shared)
Chip lithography	65 nm	4 nm
Die size	143 mm2	4x 70.6 mm2
Maximum core temperature	100 °C	no data
Number of transistors	291 Million	33,260 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1.1V-1.375V	no data

Compatibility

Information on Core 2 Extreme X7800 and EPYC 9255 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	PPGA478	SP5
Power consumption (TDP)	44 Watt	200 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme X7800 and EPYC 9255. 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
Demand Based Switching	-	no data
FSB parity	-	no data
Precision Boost 2	no data	+

Security technologies

Core 2 Extreme X7800 and EPYC 9255 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 Core 2 Extreme X7800 and EPYC 9255 are enumerated here.

AMD-V	-	+
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7800 and EPYC 9255. 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 Core 2 Extreme X7800 and EPYC 9255.

PCIe version	no data	5.0
PCI Express lanes	no data	128

Pros & cons summary

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Recency	17 July 2007	10 October 2024
Physical cores	2	24
Threads	2	48
Chip lithography	65 nm	4 nm
Power consumption (TDP)	44 Watt	200 Watt

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