Core Ultra 5 225F vs Core 2 Duo T6400

Primary details

Comparing Core 2 Duo T6400 and Core Ultra 5 225F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core 2 Duo	no data
Architecture codename	Penryn (2008−2011)	Arrow Lake-S (2024−2025)
Release date	1 January 2009 (15 years ago)	January 2025

Detailed specifications

Core 2 Duo T6400 and Core Ultra 5 225F 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)	10 (Deca-Core)
Threads	2	10
Base clock speed	2 GHz	3.3 GHz
Boost clock speed	2 GHz	4.9 GHz
Bus rate	800 MHz	no data
L1 cache	no data	112 KB (per core)
L2 cache	2 MB	3 MB (per core)
L3 cache	2 MB L2 Cache	21 MB (shared)
Chip lithography	45 nm	3 nm
Die size	no data	243 mm2
Maximum core temperature	105 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1V-1.25V	no data

Compatibility

Information on Core 2 Duo T6400 and Core Ultra 5 225F 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	PGA478	1851
Power consumption (TDP)	35 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T6400 and Core Ultra 5 225F. 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	-	+
Demand Based Switching	-	no data

Security technologies

Core 2 Duo T6400 and Core Ultra 5 225F 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 T6400 and Core Ultra 5 225F are enumerated here.

VT-d	no data	+
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6400 and Core Ultra 5 225F. 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 T6400 and Core Ultra 5 225F.

PCIe version	no data	5.0
PCI Express lanes	no data	20

Pros & cons summary

---

Physical cores	2	10
Threads	2	10
Chip lithography	45 nm	3 nm
Power consumption (TDP)	35 Watt	65 Watt

---

Should you still have questions on choice between Core 2 Duo T6400 and Core Ultra 5 225F, 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.

---