Core Ultra 5 115U vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Core Ultra 5 115U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2642	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Architecture codename	Wolfdale (2008−2010)	Meteor Lake (2023)
Release date	1 January 2008 (16 years ago)	14 December 2023 (less than a year ago)

Detailed specifications

Core 2 Duo E8400 and Core Ultra 5 115U 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)	8 (Octa-Core)
Threads	2	10
Base clock speed	3 GHz	1.5 GHz
Boost clock speed	3 GHz	4.2 GHz
Bus rate	1333 MHz	no data
L1 cache	64 KB (per core)	112 KB (per core)
L2 cache	6 MB (shared)	2 MB (per core)
L3 cache	0 KB	10 MB (shared)
Chip lithography	45 nm	7 nm
Die size	104 mm2	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Duo E8400 and Core Ultra 5 115U 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	LGA775	Intel BGA 2049
Power consumption (TDP)	65 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core Ultra 5 115U. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo E8400 and Core Ultra 5 115U technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Core Ultra 5 115U are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core Ultra 5 115U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR5 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

Arc Xe-LPG 48EU

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core Ultra 5 115U.

PCIe version	2.0	4.0
PCI Express lanes	no data	12

Pros & cons summary

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Recency	1 January 2008	14 December 2023
Physical cores	2	8
Threads	2	10
Chip lithography	45 nm	7 nm
Power consumption (TDP)	65 Watt	15 Watt

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