Core i5-8265U vs Core 2 Quad Q9400

Aggregate performance score

Core 2 Quad Q9400
2008
4 cores / 4 threads, 95 Watt
1.39
Core i5-8265U
2018
4 cores / 8 threads, 15 Watt
3.88
+179%

Core i5-8265U outperforms Core 2 Quad Q9400 by a whopping 179% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad Q9400 and Core i5-8265U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22351468
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataIntel Core i5
Power efficiency1.3323.59
Architecture codenameYorkfield (2007−2009)Whiskey Lake-U (2018−2019)
Release dateAugust 2008 (16 years ago)28 August 2018 (6 years ago)
Launch price (MSRP)no data$297

Detailed specifications

Core 2 Quad Q9400 and Core i5-8265U 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)4 (Quad-Core)
Threads48
Base clock speed2.66 GHz1.6 GHz
Boost clock speed2.67 GHz3.9 GHz
Bus typeno dataOPI
Bus rate1333 MHz4 GT/s
Multiplierno data16
L1 cache64K (per core)256 KB
L2 cache6 MB (shared)1 MB
L3 cache0 KB6 MB (shared)
Chip lithography45 nm14 nm
Die size2x 81 mm2123 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)71 °C72 °C
Number of transistors456 millionno data
64 bit support++
Windows 11 compatibility-+
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Quad Q9400 and Core i5-8265U 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 (Uniprocessor)
SocketLGA775FCBGA1528
Power consumption (TDP)95 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Core i5-8265U. 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+
My WiFino data+
Turbo Boost Technology-2.0
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Smart Responseno data+
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Quad Q9400 and Core i5-8265U technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Keyno data+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400 and Core i5-8265U are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Core i5-8265U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR4
Maximum memory sizeno data64 GB
Max memory channelsno data2
Maximum memory bandwidthno data38.397 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel® UHD Graphics for 8th Generation Intel® Processors
Max video memoryno data32 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.1 GHz

Graphics interfaces

Available interfaces and connections of Core 2 Quad Q9400 and Core i5-8265U integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core 2 Quad Q9400 and Core i5-8265U integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core 2 Quad Q9400 and Core i5-8265U integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9400 and Core i5-8265U.

PCIe versionno data3.0
PCI Express lanesno data16

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 Quad Q9400 1.39
i5-8265U 3.88
+179%

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 Quad Q9400 2132
i5-8265U 5945
+179%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Quad Q9400 336
i5-8265U 720
+114%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Quad Q9400 925
i5-8265U 2272
+146%

Gaming performance

Pros & cons summary


Performance score 1.39 3.88
Threads 4 8
Chip lithography 45 nm 14 nm
Power consumption (TDP) 95 Watt 15 Watt

i5-8265U has a 179.1% higher aggregate performance score, 100% more threads, a 221.4% more advanced lithography process, and 533.3% lower power consumption.

The Core i5-8265U is our recommended choice as it beats the Core 2 Quad Q9400 in performance tests.

Note that Core 2 Quad Q9400 is a desktop processor while Core i5-8265U is a notebook one.


Should you still have questions on choice between Core 2 Quad Q9400 and Core i5-8265U, ask them in Comments section, and we shall answer.

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Intel Core 2 Quad Q9400
Core 2 Quad Q9400
Intel Core i5-8265U
Core i5-8265U

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Community ratings

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Questions & comments

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