Ryzen 9 7945HX vs i3-8145U

VS

Aggregate performance score

Core i3-8145U
2018
2 cores / 4 threads, 15 Watt
2.39
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
34.44
+1341%

Ryzen 9 7945HX outperforms Core i3-8145U by a whopping 1341% based on our aggregate benchmark results.

Primary details

Comparing Core i3-8145U and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1785110
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i3no data
Power efficiency15.0058.95
Architecture codenameWhiskey Lake-U (2018−2019)Dragon Range-HX (Zen 4) (2023−2024)
Release date1 October 2018 (6 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$281no data

Detailed specifications

Core i3-8145U and Ryzen 9 7945HX 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 cores2 (Dual-core)16 (Hexadeca-Core)
Threads432
Base clock speed2.1 GHz2.5 GHz
Boost clock speed3.9 GHz5.4 GHz
Bus typeOPIno data
Bus rate4 GT/sno data
Multiplier21no data
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)1 MB (per core)
L3 cache4 MB (shared)64 MB (shared)
Chip lithography14 nmCCD = 5 nm, I/O = 6 nm
Die size123 mm22x 71 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on Core i3-8145U and Ryzen 9 7945HX 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
SocketFCBGA1528FL1
Power consumption (TDP)15 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8145U and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI++
FMA-+
AVX++
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
Smart Response+no data
Precision Boost 2no data+

Security technologies

Core i3-8145U and Ryzen 9 7945HX technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data
Secure Key+no data
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-8145U and Ryzen 9 7945HX are enumerated here.

AMD-V++
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8145U and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5
Maximum memory size64 GBno data
Max memory channels2no data
Maximum memory bandwidth38.397 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics for 8th Generation Intel ProcessorsAMD Radeon 610M (400 - 2200 MHz)
Max video memory32 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1 GHzno data

Graphics interfaces

Available interfaces and connections of Core i3-8145U and Ryzen 9 7945HX integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i3-8145U and Ryzen 9 7945HX integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data

Graphics API support

APIs supported by Core i3-8145U and Ryzen 9 7945HX integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i3-8145U and Ryzen 9 7945HX.

PCIe version3.05.0
PCI Express lanes1628

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.

i3-8145U 2.39
Ryzen 9 7945HX 34.44
+1341%

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.

i3-8145U 3794
Ryzen 9 7945HX 54710
+1342%

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.

i3-8145U 794
Ryzen 9 7945HX 2736
+245%

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.

i3-8145U 1575
Ryzen 9 7945HX 15896
+909%

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.

i3-8145U 5939
Ryzen 9 7945HX 8462
+42.5%

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.

i3-8145U 12432
Ryzen 9 7945HX 71611
+476%

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.

i3-8145U 5158
Ryzen 9 7945HX 19820
+284%

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.

i3-8145U 13.1
Ryzen 9 7945HX 1.99
+558%

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.

i3-8145U 4
Ryzen 9 7945HX 62
+1435%

Cinebench 15 64-bit multi-core

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

i3-8145U 352
Ryzen 9 7945HX 5521
+1471%

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.

i3-8145U 149
Ryzen 9 7945HX 308
+107%

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.

i3-8145U 1.77
Ryzen 9 7945HX 3.65
+106%

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.

i3-8145U 2.2
Ryzen 9 7945HX 27.7
+1159%

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.  

i3-8145U 23
Ryzen 9 7945HX 236
+942%

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.  

i3-8145U 118
Ryzen 9 7945HX 369
+214%

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.

i3-8145U 1889
Ryzen 9 7945HX 14532
+669%

Gaming performance

Pros & cons summary


Performance score 2.39 34.44
Integrated graphics card 5.58 2.85
Recency 1 October 2018 4 January 2023
Physical cores 2 16
Threads 4 32
Power consumption (TDP) 15 Watt 55 Watt

i3-8145U has 95.8% faster integrated GPU, and 266.7% lower power consumption.

Ryzen 9 7945HX, on the other hand, has a 1341% higher aggregate performance score, an age advantage of 4 years, and 700% more physical cores and 700% more threads.

The Ryzen 9 7945HX is our recommended choice as it beats the Core i3-8145U in performance tests.


Should you still have questions on choice between Core i3-8145U and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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Intel Core i3-8145U
Core i3-8145U
AMD Ryzen 9 7945HX
Ryzen 9 7945HX

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