Ryzen 9 7945HX3D vs Ryzen 9 4900H

VS

Aggregate performance score

Ryzen 9 4900H
2020
8 cores / 16 threads, 45 Watt
12.06
Ryzen 9 7945HX3D
2023
16 cores / 32 threads, 55 Watt
36.15
+200%

Ryzen 9 7945HX3D outperforms Ryzen 9 4900H by a whopping 200% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 4900H and Ryzen 9 7945HX3D processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking64499
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Renoir (Ryzen 4000 APU)AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency21.1462.20
Architecture codenameRenoir-H (Zen 2) (2020)Dragon Range-HX (Zen 4) (2023−2024)
Release date16 March 2020 (4 years ago)27 July 2023 (1 year ago)

Detailed specifications

Ryzen 9 4900H and Ryzen 9 7945HX3D 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 cores8 (Octa-Core)16 (Hexadeca-Core)
Threads1632
Base clock speed3.3 GHz2.3 GHz
Boost clock speed4.4 GHz5.4 GHz
Multiplier33no data
L1 cache512 KB64 KB (per core)
L2 cache4 MB1 MB (per core)
L3 cache8 MB (shared)128 MB (shared)
Chip lithography7 nm5 nm
Die size156 mm22x 71 mm2
Maximum core temperature105 °C89 °C
Number of transistors9800 Million17,840 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier-+

Compatibility

Information on Ryzen 9 4900H and Ryzen 9 7945HX3D 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
SocketFP6FL1
Power consumption (TDP)45 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 4900H and Ryzen 9 7945HX3D. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA, SHAno data
AES-NI++
FMA+-
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 4900H and Ryzen 9 7945HX3D are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 4900H and Ryzen 9 7945HX3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5-5200
Maximum memory size64 GBno data
Max memory channels4no data
Maximum memory bandwidth68.27 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 1750 MHz)AMD Radeon 610M (400 - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 4900H and Ryzen 9 7945HX3D.

PCIe version3.05.0
PCI Express lanesno data28

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 4900H 12.06
Ryzen 9 7945HX3D 36.15
+200%

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 4900H 19149
Ryzen 9 7945HX3D 57430
+200%

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.

Ryzen 9 4900H 1550
Ryzen 9 7945HX3D 2762
+78.2%

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.

Ryzen 9 4900H 6733
Ryzen 9 7945HX3D 16398
+144%

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 4900H 5946
Ryzen 9 7945HX3D 8478
+42.6%

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 4900H 40253
Ryzen 9 7945HX3D 70414
+74.9%

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 4900H 3.19
+85%
Ryzen 9 7945HX3D 5.9

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 4900H 23
Ryzen 9 7945HX3D 62
+169%

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 4900H 1927
Ryzen 9 7945HX3D 5600
+191%

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 4900H 193
Ryzen 9 7945HX3D 311
+61.1%

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 4900H 2.24
Ryzen 9 7945HX3D 3.7
+65.2%

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 4900H 7.4
Ryzen 9 7945HX3D 23.4
+216%

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 4900H 4297
Ryzen 9 7945HX3D 51122
+1090%

Geekbench 5.5 Multi-Core

Ryzen 9 4900H 8012
Ryzen 9 7945HX3D 19875
+148%

Blender(-)

Ryzen 9 4900H 247
+160%
Ryzen 9 7945HX3D 95

Geekbench 5.5 Single-Core

Ryzen 9 4900H 1232
Ryzen 9 7945HX3D 2133
+73.2%

7-Zip Single

Ryzen 9 4900H 4727
Ryzen 9 7945HX3D 7573
+60.2%

7-Zip

Ryzen 9 4900H 48976
Ryzen 9 7945HX3D 136201
+178%

WebXPRT 3

Ryzen 9 4900H 227
Ryzen 9 7945HX3D 480
+111%

Gaming performance

Pros & cons summary


Performance score 12.06 36.15
Integrated graphics card 9.05 2.85
Recency 16 March 2020 27 July 2023
Physical cores 8 16
Threads 16 32
Chip lithography 7 nm 5 nm
Power consumption (TDP) 45 Watt 55 Watt

Ryzen 9 4900H has 217.5% faster integrated GPU, and 22.2% lower power consumption.

Ryzen 9 7945HX3D, on the other hand, has a 199.8% higher aggregate performance score, an age advantage of 3 years, 100% more physical cores and 100% more threads, and a 40% more advanced lithography process.

The Ryzen 9 7945HX3D is our recommended choice as it beats the Ryzen 9 4900H in performance tests.


Should you still have questions on choice between Ryzen 9 4900H and Ryzen 9 7945HX3D, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 4900H
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