Core Ultra 9 285K vs Core 2 Extreme QX9300

Aggregate performance score

Core 2 Extreme QX9300
2008
4 cores / 4 threads, 45 Watt
1.14
Core Ultra 9 285K
2024
24 cores / 24 threads, 125 Watt
43.29
+3697%

Core Ultra 9 285K outperforms Core 2 Extreme QX9300 by a whopping 3697% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Extreme QX9300 and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking237950
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data70.86
Market segmentLaptopDesktop processor
SeriesCore 2 Extremeno data
Power efficiency2.4032.77
Architecture codenamePenryn (2008−2011)Arrow Lake-S (2024−2025)
Release dateAugust 2008 (16 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)no data$589

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Extreme QX9300 and Core Ultra 9 285K 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)24 (Tetracosa-Core)
Threads424
Base clock speed2.53 GHz3.7 GHz
Boost clock speed2.53 GHz5.7 GHz
Bus rate1066 MHz250 MHz
L1 cache64 KB112 KB (per core)
L2 cache12 MB3 MB (per core)
L3 cache0 KB36 MB (shared)
Chip lithography45 nm3 nm
Die size2x 107 mm2243 mm2
Maximum core temperature100 °Cno data
Number of transistorsno data17,800 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier++
VID voltage range1.05V-1.175Vno data

Compatibility

Information on Core 2 Extreme QX9300 and Core Ultra 9 285K 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 configuration21
SocketPGA4781851
Power consumption (TDP)45 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme QX9300 and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
TSX-+
Demand Based Switching-no data
AMT+no data
FSB parity-no data

Security technologies

Core 2 Extreme QX9300 and Core Ultra 9 285K 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 Extreme QX9300 and Core Ultra 9 285K are enumerated here.

VT-dno data+
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9300 and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataArc Xe-LPG Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme QX9300 and Core Ultra 9 285K.

PCIe versionno data5.0
PCI Express lanesno data20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core 2 Extreme QX9300 1.14
Ultra 9 285K 43.29
+3697%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Core 2 Extreme QX9300 1805
Ultra 9 285K 68768
+3710%

Gaming performance

Pros & cons summary


Performance score 1.14 43.29
Physical cores 4 24
Threads 4 24
Chip lithography 45 nm 3 nm
Power consumption (TDP) 45 Watt 125 Watt

Core 2 Extreme QX9300 has 177.8% lower power consumption.

Ultra 9 285K, on the other hand, has a 3697.4% higher aggregate performance score, 500% more physical cores and 500% more threads, and a 1400% more advanced lithography process.

The Core Ultra 9 285K is our recommended choice as it beats the Core 2 Extreme QX9300 in performance tests.

Be aware that Core 2 Extreme QX9300 is a notebook processor while Core Ultra 9 285K is a desktop one.


Should you still have questions on choice between Core 2 Extreme QX9300 and Core Ultra 9 285K, 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.


Intel Core 2 Extreme QX9300
Core 2 Extreme QX9300
Intel Core Ultra 9 285K
Core Ultra 9 285K

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.1 91 vote

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3.3 120 votes

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Questions & comments

Here you can ask a question about Core 2 Extreme QX9300 or Core Ultra 9 285K, agree or disagree with our judgements, or report an error or mismatch.