Ryzen 9 8945HS vs Ryzen 7 PRO 7840U

VS

Aggregate performance score

Ryzen 7 PRO 7840U
2023
8 cores / 16 threads, 28 Watt
15.52
Ryzen 9 8945HS
2023
8 cores / 16 threads, 45 Watt
18.76
+20.9%

Ryzen 9 8945HS outperforms Ryzen 7 PRO 7840U by a significant 21% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 PRO 7840U and Ryzen 9 8945HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking449321
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Phoenix (Zen 4, Ryzen 7040)no data
Power efficiency52.4639.45
Architecture codenamePhoenix (Zen 4) (2023)Hawk Point-HS (Zen 4) (2023−2024)
Release date3 May 2023 (1 year ago)6 December 2023 (1 year ago)

Detailed specifications

Ryzen 7 PRO 7840U and Ryzen 9 8945HS 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)8 (Octa-Core)
Threads1616
Base clock speed3.3 GHz4 GHz
Boost clock speed5.1 GHz5.2 GHz
L1 cache512 KB64 KB (per core)
L2 cache8 MB1 MB (per core)
L3 cache16 MB16 MB (shared)
Chip lithography4 nm4 nm
Die size178 mm2178 mm2
Maximum core temperature100 °C100 °C
Number of transistorsno data25,000 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Ryzen 7 PRO 7840U and Ryzen 9 8945HS 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 configurationno data1
Socketno dataFP8
Power consumption (TDP)28 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 PRO 7840U and Ryzen 9 8945HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataRyzen AI, MMX, 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-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 PRO 7840U and Ryzen 9 8945HS are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 PRO 7840U and Ryzen 9 8945HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 780M ( - 2700 MHz)AMD Radeon 780M ( - 2800 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 PRO 7840U and Ryzen 9 8945HS.

PCIe versionno data4.0
PCI Express lanesno data20

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 7 PRO 7840U 15.52
Ryzen 9 8945HS 18.76
+20.9%

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 7 PRO 7840U 24647
Ryzen 9 8945HS 29804
+20.9%

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 7 PRO 7840U 2149
Ryzen 9 8945HS 2373
+10.4%

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 7 PRO 7840U 9518
Ryzen 9 8945HS 11611
+22%

Cinebench 15 64-bit multi-core

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

Ryzen 7 PRO 7840U 2218
Ryzen 9 8945HS 2659
+19.9%

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 7 PRO 7840U 265
Ryzen 9 8945HS 281
+6%

Geekbench 5.5 Multi-Core

Ryzen 7 PRO 7840U 9968
Ryzen 9 8945HS 12368
+24.1%

Blender(-)

Ryzen 7 PRO 7840U 237
+23.4%
Ryzen 9 8945HS 192

Geekbench 5.5 Single-Core

Ryzen 7 PRO 7840U 1853
Ryzen 9 8945HS 1965
+6%

7-Zip Single

Ryzen 7 PRO 7840U 5900
Ryzen 9 8945HS 6250
+5.9%

7-Zip

Ryzen 7 PRO 7840U 58386
Ryzen 9 8945HS 71704
+22.8%

WebXPRT 3

Ryzen 7 PRO 7840U 283
Ryzen 9 8945HS 316
+11.7%

CrossMark Overall

Ryzen 7 PRO 7840U 1595
Ryzen 9 8945HS 1830
+14.7%

WebXPRT 4 Overall

Ryzen 7 PRO 7840U 240
Ryzen 9 8945HS 260
+8.6%

Blender v3.3 Classroom CPU(-)

Ryzen 7 PRO 7840U 390
+25%
Ryzen 9 8945HS 312

Geekbench 6.3 Multi-Core

Ryzen 7 PRO 7840U 11130
Ryzen 9 8945HS 13283
+19.3%

Geekbench 6.3 Single-Core

Ryzen 7 PRO 7840U 2479
Ryzen 9 8945HS 2684
+8.3%

Gaming performance

Pros & cons summary


Performance score 15.52 18.76
Recency 3 May 2023 6 December 2023
Power consumption (TDP) 28 Watt 45 Watt

Ryzen 7 PRO 7840U has 60.7% lower power consumption.

Ryzen 9 8945HS, on the other hand, has a 20.9% higher aggregate performance score, and an age advantage of 7 months.

The Ryzen 9 8945HS is our recommended choice as it beats the Ryzen 7 PRO 7840U in performance tests.


Should you still have questions on choice between Ryzen 7 PRO 7840U and Ryzen 9 8945HS, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 PRO 7840U
Ryzen 7 PRO 7840U
AMD Ryzen 9 8945HS
Ryzen 9 8945HS

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Community ratings

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4.2 50 votes

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3.9 218 votes

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Questions & comments

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