i9-13900K vs i7-8665U

VS

Aggregate performance score

Core i7-8665U
2019
4 cores / 8 threads, 15 Watt
3.95
Core i9-13900K
2022
24 cores / 32 threads, 125 Watt
37.29
+844%

Core i9-13900K outperforms Core i7-8665U by a whopping 844% based on our aggregate benchmark results.

Primary details

Comparing Core i7-8665U and Core i9-13900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking142889
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data59.83
Market segmentLaptopDesktop processor
SeriesIntel Core i7Intel Core i9
Power efficiency24.8213.89
Architecture codenameWhiskey Lake-U (2018−2019)Raptor Lake, Raptor Cove, Gracemont (2022)
Release date16 April 2019 (5 years ago)27 September 2022 (2 years ago)
Launch price (MSRP)$409$589

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-8665U and Core i9-13900K 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)
Threads832
Base clock speed1.9 GHz3 GHz
Boost clock speed4.8 GHz5.7 GHz
Bus typeOPIno data
Bus rate4 GT/s4 × 16 GT/s
Multiplier1930
L1 cache256 KB1.5 MB
L2 cache1 MB16 MB
L3 cache8 MB (shared)12 MB
Chip lithography14 nmIntel 7 nm
Die sizeno data257 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)no data72 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on Core i7-8665U and Core i9-13900K 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 configuration1 (Uniprocessor)1
SocketFCBGA1528FCLGA1700
Power consumption (TDP)15 Watt125 W, 253 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-8665U and Core i9-13900K. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
Speed Shift++
My WiFi+no data
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX+-
Idle States++
Thermal Monitoring++
Flex Memory Access+no data
SIPP++
Smart Response+no data
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

Core i7-8665U and Core i9-13900K technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key++
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-8665U and Core i9-13900K are enumerated here.

AMD-V+-
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-8665U and Core i9-13900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4, DDR5
Maximum memory size64 GB192 GB
Max memory channels22
Maximum memory bandwidth38.397 GB/s89.604 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel® UHD Graphics for 8th Generation Intel® ProcessorsIntel UHD Graphics 770
Max video memory32 GBno data
Quick Sync Video++
Clear Video+no data
Clear Video HD++
Graphics max frequency1.15 GHz1.65 GHz
Execution Unitsno data32

Graphics interfaces

Available interfaces and connections of Core i7-8665U and Core i9-13900K integrated GPUs.

Number of displays supported34
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i7-8665U and Core i9-13900K integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096 x 2304@24Hz4096 x 2160 @ 60Hz
Max resolution over eDP4096 x 2304@60Hz5120 x 3200 @ 120Hz
Max resolution over DisplayPort4096 x 2304@60Hz7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i7-8665U and Core i9-13900K integrated GPUs, sometimes API versions are included.

DirectX1212
OpenGL4.54.5

Peripherals

Specifications and connection of peripherals supported by Core i7-8665U and Core i9-13900K.

PCIe version3.05.0 and 4.0
PCI Express lanes1620

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.

i7-8665U 3.95
i9-13900K 37.29
+844%

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.

i7-8665U 6256
i9-13900K 59014
+843%

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.

i7-8665U 765
i9-13900K 3004
+293%

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.

i7-8665U 2425
i9-13900K 20225
+734%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-8665U 6872
i9-13900K 12018
+74.9%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-8665U 18427
i9-13900K 87738
+376%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-8665U 6365
i9-13900K 20192
+217%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-8665U 9.98
i9-13900K 2.05
+387%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-8665U 5
i9-13900K 68
+1283%

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i7-8665U 670
i9-13900K 5806
+766%

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i7-8665U 180
i9-13900K 318
+76.7%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-8665U 1.67
i9-13900K 3.87
+132%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-8665U 2.6
i9-13900K 22.9
+781%

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-8665U 32
i9-13900K 265
+727%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-8665U 139
i9-13900K 419
+202%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-8665U 3418
i9-13900K 14271
+318%

Geekbench 5.5 Multi-Core

i7-8665U 2671
i9-13900K 24033
+800%

Blender(-)

i7-8665U 755
+798%
i9-13900K 84

Geekbench 5.5 Single-Core

i7-8665U 1039
i9-13900K 2286
+120%

7-Zip Single

i7-8665U 4706
i9-13900K 7272
+54.5%

7-Zip

i7-8665U 18298
i9-13900K 146984
+703%

Gaming performance

Pros & cons summary


Performance score 3.95 37.29
Recency 16 April 2019 27 September 2022
Physical cores 4 24
Threads 8 32
Power consumption (TDP) 15 Watt 125 Watt

i7-8665U has 733.3% lower power consumption.

i9-13900K, on the other hand, has a 844.1% higher aggregate performance score, an age advantage of 3 years, and 500% more physical cores and 300% more threads.

The Core i9-13900K is our recommended choice as it beats the Core i7-8665U in performance tests.

Be aware that Core i7-8665U is a notebook processor while Core i9-13900K is a desktop one.


Should you still have questions on choice between Core i7-8665U and Core i9-13900K, 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 i7-8665U
Core i7-8665U
Intel Core i9-13900K
Core i9-13900K

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


3.7 188 votes

Rate Core i7-8665U on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.9 1923 votes

Rate Core i9-13900K on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-8665U or Core i9-13900K, agree or disagree with our judgements, or report an error or mismatch.