Core Ultra 5 245KF vs Core 2 Extreme QX9775

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Primary details

Comparing Core 2 Extreme QX9775 and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated176
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data82.57
Market segmentDesktop processorDesktop processor
Power efficiencyno data20.94
Architecture codenameYorkfield (2007−2009)Arrow Lake-S (2024−2025)
Release dateMarch 2008 (16 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)no data$294

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Extreme QX9775 and Core Ultra 5 245KF 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 cores4 (Quad-Core)14 (Tetradeca-Core)
Threads414
Base clock speed3.2 GHz4.2 GHz
Boost clock speed3.2 GHz5.2 GHz
Bus rate1600 MHzno data
L1 cache64K (per core)112 KB (per core)
L2 cache12 MB (shared)3 MB (per core)
L3 cache0 KB24 MB (shared)
Chip lithography45 nm3 nm
Die size2x 107 mm2243 mm2
Maximum case temperature (TCase)63 °Cno data
Number of transistors820 million17,800 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-
VID voltage range0.85V-1.35Vno data

Compatibility

Information on Core 2 Extreme QX9775 and Core Ultra 5 245KF 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 configuration11
SocketLGA771FCLGA1851
Power consumption (TDP)150 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme QX9775 and Core Ultra 5 245KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology-2.0
Hyper-Threading Technology-no data
TSX-+
Idle States++
Thermal Monitoring++
Demand Based Switching-no data
FSB parity-no data
Deep Learning Boost-+
Supported AI Software Frameworks-OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Core 2 Extreme QX9775 and Core Ultra 5 245KF technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB++
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Extreme QX9775 and Core Ultra 5 245KF are enumerated here.

VT-dno data+
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9775 and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR2DDR5-6400
Maximum memory sizeno data192 GB
Max memory channelsno data2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme QX9775 and Core Ultra 5 245KF.

PCIe versionno data5.0 and 4.0
PCI Express lanesno data20

Pros & cons summary


Physical cores 4 14
Threads 4 14
Chip lithography 45 nm 3 nm
Power consumption (TDP) 150 Watt 125 Watt

Ultra 5 245KF has 250% more physical cores and 250% more threads, a 1400% more advanced lithography process, and 20% lower power consumption.

We couldn't decide between Core 2 Extreme QX9775 and Core Ultra 5 245KF. We've got no test results to judge.


Should you still have questions on choice between Core 2 Extreme QX9775 and Core Ultra 5 245KF, ask them in Comments section, and we shall answer.

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Intel Core 2 Extreme QX9775
Core 2 Extreme QX9775
Intel Core Ultra 5 245KF
Core Ultra 5 245KF

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Community ratings

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3.7 45 votes

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3.3 12 votes

Rate Core Ultra 5 245KF on a scale of 1 to 5:

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Questions & comments

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