EPYC 9655P vs Core 2 Duo P8400

Primary details

Comparing Core 2 Duo P8400 and EPYC 9655P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2838	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core 2 Duo	no data
Power efficiency	2.01	no data
Architecture codename	Penryn (2008−2011)	Turin (2024)
Release date	15 July 2008 (16 years ago)	10 October 2024 (recently)
Launch price (MSRP)	$209	$10,811

Detailed specifications

Core 2 Duo P8400 and EPYC 9655P 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)	96
Threads	2	192
Base clock speed	2.26 GHz	2.6 GHz
Boost clock speed	2.26 GHz	4.5 GHz
Bus rate	1066 MHz	no data
L1 cache	128 KB	80 KB (per core)
L2 cache	3 MB	1 MB (per core)
L3 cache	3 MB L2 Cache	384 MB (shared)
Chip lithography	45 nm	4 nm
Die size	107 mm2	12x 70.6 mm2
Maximum core temperature	105 °C	no data
Number of transistors	410 Million	99,780 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1.05V-1.15V	no data

Compatibility

Information on Core 2 Duo P8400 and EPYC 9655P 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	1
Socket	BGA479,PBGA479,PGA478	SP5
Power consumption (TDP)	25 Watt	400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo P8400 and EPYC 9655P. 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
Demand Based Switching	-	no data
FSB parity	-	no data
Precision Boost 2	no data	+

Security technologies

Core 2 Duo P8400 and EPYC 9655P 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 Duo P8400 and EPYC 9655P are enumerated here.

AMD-V	-	+
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo P8400 and EPYC 9655P. 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 Duo P8400 and EPYC 9655P.

PCIe version	no data	5.0
PCI Express lanes	no data	128

Pros & cons summary

---

Recency	15 July 2008	10 October 2024
Physical cores	2	96
Threads	2	192
Chip lithography	45 nm	4 nm
Power consumption (TDP)	25 Watt	400 Watt

---

Should you still have questions on choice between Core 2 Duo P8400 and EPYC 9655P, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---