Ryzen 7 8845HS vs Ryzen 9 3900

VS

Aggregate performance score

Ryzen 9 3900
2019
12 cores / 24 threads, 65 Watt
19.34
+6.6%
Ryzen 7 8845HS
2023
8 cores / 16 threads, 45 Watt
18.14

Ryzen 9 3900 outperforms Ryzen 7 8845HS by a small 7% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 3900 and Ryzen 7 8845HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking300337
Place by popularitynot in top-10089
Cost-effectiveness evaluation20.74no data
Market segmentDesktop processorLaptop
SeriesAMD Matisse (Ryzen 3000 Desktop)no data
Power efficiency28.1638.15
Architecture codenameMatisse (Zen 2) (2019−2020)Hawk Point-HS (Zen 4) (2023−2024)
Release date24 September 2019 (5 years ago)6 December 2023 (1 year ago)
Launch price (MSRP)$499no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 3900 and Ryzen 7 8845HS 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 cores12 (Dodeca-Core)8 (Octa-Core)
Threads2416
Base clock speed3.1 GHz3.8 GHz
Boost clock speed4.3 GHz5.1 GHz
L1 cache768 KB64 KB (per core)
L2 cache6 MB1 MB (per core)
L3 cache64 MB16 MB (shared)
Chip lithography7 nm, 12 nm4 nm
Die size2x 74 mm2178 mm2
Maximum core temperatureno data100 °C
Number of transistors7,600 million25,000 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 3900 and Ryzen 7 8845HS 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
SocketAM4FP8
Power consumption (TDP)65 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900 and Ryzen 7 8845HS. You'll probably need this information if you require some particular technology.

Instruction set extensions86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2Ryzen 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 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900 and Ryzen 7 8845HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900 and Ryzen 7 8845HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth51.196 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AAMD Radeon 780M ( - 2700 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900 and Ryzen 7 8845HS.

PCIe version4.04.0
PCI Express lanes2420

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 3900 19.34
+6.6%
Ryzen 7 8845HS 18.14

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 3900 30722
+6.6%
Ryzen 7 8845HS 28812

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 3900 1678
Ryzen 7 8845HS 2344
+39.7%

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 3900 9543
Ryzen 7 8845HS 11058
+15.9%

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 3900 5700
Ryzen 7 8845HS 7475
+31.1%

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 3900 44191
Ryzen 7 8845HS 47416
+7.3%

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 3900 13817
Ryzen 7 8845HS 15724
+13.8%

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 3900 31
+4.9%
Ryzen 7 8845HS 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 3900 2804
+9%
Ryzen 7 8845HS 2572

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 3900 197
Ryzen 7 8845HS 278
+41.1%

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 3900 2.22
Ryzen 7 8845HS 3.31
+49.1%

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 3900 10.4
Ryzen 7 8845HS 14.2
+36.5%

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 3900 7145
Ryzen 7 8845HS 13168
+84.3%

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 3900 132
Ryzen 7 8845HS 144
+8.9%

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 3900 256
Ryzen 7 8845HS 289
+13.1%

Geekbench 5.5 Multi-Core

Ryzen 9 3900 10190
Ryzen 7 8845HS 11819
+16%

Blender(-)

Ryzen 9 3900 179
Ryzen 7 8845HS 200
+11.7%

Geekbench 5.5 Single-Core

Ryzen 9 3900 1246
Ryzen 7 8845HS 1940
+55.7%

7-Zip Single

Ryzen 9 3900 5134
Ryzen 7 8845HS 6305
+22.8%

7-Zip

Ryzen 9 3900 75612
+12.6%
Ryzen 7 8845HS 67167

WebXPRT 3

Ryzen 9 3900 227
Ryzen 7 8845HS 305
+34.4%

Gaming performance

Pros & cons summary


Performance score 19.34 18.14
Recency 24 September 2019 6 December 2023
Physical cores 12 8
Threads 24 16
Chip lithography 7 nm 4 nm
Power consumption (TDP) 65 Watt 45 Watt

Ryzen 9 3900 has a 6.6% higher aggregate performance score, and 50% more physical cores and 50% more threads.

Ryzen 7 8845HS, on the other hand, has an age advantage of 4 years, a 75% more advanced lithography process, and 44.4% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Ryzen 9 3900 and Ryzen 7 8845HS.

Note that Ryzen 9 3900 is a desktop processor while Ryzen 7 8845HS is a notebook one.


Should you still have questions on choice between Ryzen 9 3900 and Ryzen 7 8845HS, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 3900
Ryzen 9 3900
AMD Ryzen 7 8845HS
Ryzen 7 8845HS

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