Ultra 7 155H vs Ryzen 9 7945HX

Aggregate performance score

Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
34.55
+118%
Core Ultra 7 155H
2023
16 cores / 22 threads, 28 Watt
15.83

Ryzen 9 7945HX outperforms Core Ultra 7 155H by a whopping 118% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7945HX and Core Ultra 7 155H processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking110425
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Seriesno dataIntel Meteor Lake-H
Power efficiency59.2053.28
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Meteor Lake-H (2023)
Release date4 January 2023 (1 year ago)14 December 2023 (less than a year ago)
Launch price (MSRP)no data$503

Detailed specifications

Ryzen 9 7945HX and Core Ultra 7 155H 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 cores16 (Hexadeca-Core)16 (Hexadeca-Core)
Threads3222
Base clock speed2.5 GHz3.8 GHz
Boost clock speed5.4 GHz4.8 GHz
L1 cache64K (per core)112 KB (per core)
L2 cache1 MB (per core)2 MB (per core)
L3 cache64 MB (shared)24 MB (shared)
Chip lithographyCCD = 5 nm, I/O = 6 nmIntel 4 nm
Die size2x 71 mm2no data
Maximum core temperature100 °C110 °C
Number of transistors13,140 millionno data
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 7945HX and Core Ultra 7 155H 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
SocketFL1FCBGA2049
Power consumption (TDP)55 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7945HX and Core Ultra 7 155H. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, 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, SMEIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA+-
AVX++
vProno data+
Enhanced SpeedStep (EIST)no data+
Speed Shiftno data+
Hyper-Threading Technologyno data+
TSX-+
Thermal Monitoring-+
Flex Memory Accessno data+
Turbo Boost Max 3.0no data+
Precision Boost 2+no data
Deep Learning Boost-+
Supported AI Software Frameworks-OpenVINO™, WindowsML, ONNX RT

Security technologies

Ryzen 9 7945HX and Core Ultra 7 155H technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7945HX and Core Ultra 7 155H are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX and Core Ultra 7 155H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5
Maximum memory sizeno data96 GB
Max memory channelsno data2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610MIntel® Arc™ graphics
Quick Sync Video-+
Graphics max frequencyno data2.25 GHz

Graphics interfaces

Available interfaces and connections of Ryzen 9 7945HX and Core Ultra 7 155H integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Ryzen 9 7945HX and Core Ultra 7 155H integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDPno data3840x2400 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Ryzen 9 7945HX and Core Ultra 7 155H integrated GPUs, sometimes API versions are included.

DirectXno data12.2
OpenGLno data4.6

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7945HX and Core Ultra 7 155H.

PCIe version5.05.0
PCI Express lanes288
PCI supportno data5.0 and 4.0

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.

Ryzen 9 7945HX 34.55
+118%
Ultra 7 155H 15.83

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.

Ryzen 9 7945HX 54674
+118%
Ultra 7 155H 25048

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.

Ryzen 9 7945HX 8462
Ultra 7 155H 9828
+16.1%

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.

Ryzen 9 7945HX 71611
+27.3%
Ultra 7 155H 56242

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.

Ryzen 9 7945HX 19820
+52.1%
Ultra 7 155H 13031

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.

Ryzen 9 7945HX 1.99
+81.4%
Ultra 7 155H 3.61

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.

Ryzen 9 7945HX 62
+105%
Ultra 7 155H 30

Cinebench 15 64-bit multi-core

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

Ryzen 9 7945HX 5521
+132%
Ultra 7 155H 2385

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.

Ryzen 9 7945HX 308
+20.8%
Ultra 7 155H 255

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.

Ryzen 9 7945HX 3.65
+18.9%
Ultra 7 155H 3.07

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.

Ryzen 9 7945HX 27.7
+172%
Ultra 7 155H 10.2

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.  

Ryzen 9 7945HX 236
+83.9%
Ultra 7 155H 128

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.  

Ryzen 9 7945HX 369
+24.6%
Ultra 7 155H 296

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.

Ryzen 9 7945HX 14532
+105%
Ultra 7 155H 7084

Geekbench 5.5 Multi-Core

Ryzen 9 7945HX 19802
+62.7%
Ultra 7 155H 12174

Blender(-)

Ryzen 9 7945HX 94
Ultra 7 155H 222
+136%

Geekbench 5.5 Single-Core

Ryzen 9 7945HX 2124
+20.4%
Ultra 7 155H 1764

7-Zip Single

Ryzen 9 7945HX 7381
+36.7%
Ultra 7 155H 5398

7-Zip

Ryzen 9 7945HX 140471
+132%
Ultra 7 155H 60595

WebXPRT 3

Ryzen 9 7945HX 351
+26.3%
Ultra 7 155H 278

Gaming performance

Pros & cons summary


Performance score 34.55 15.83
Recency 4 January 2023 14 December 2023
Threads 32 22
Power consumption (TDP) 55 Watt 28 Watt

Ryzen 9 7945HX has a 118.3% higher aggregate performance score, and 45.5% more threads.

Ultra 7 155H, on the other hand, has an age advantage of 11 months, and 96.4% lower power consumption.

The Ryzen 9 7945HX is our recommended choice as it beats the Core Ultra 7 155H in performance tests.


Should you still have questions on choice between Ryzen 9 7945HX and Core Ultra 7 155H, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 7945HX
Ryzen 9 7945HX
Intel Core Ultra 7 155H
Core Ultra 7 155H

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