A8-7100 vs Ryzen 9 3900

VS

Aggregate performance score

Ryzen 9 3900
2019
12 cores / 24 threads, 65 Watt
19.76
+1782%
A8-7100
2014
4 cores / 4 threads, 19 Watt
1.05

Ryzen 9 3900 outperforms A8-7100 by a whopping 1782% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 3900 and A8-7100 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2892438
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation20.09no data
Market segmentDesktop processorLaptop
SeriesAMD Matisse (Ryzen 3000 Desktop)AMD Kaveri
Power efficiency28.245.13
Architecture codenameMatisse (Zen 2) (2019−2020)Kaveri (2014−2015)
Release date24 September 2019 (5 years ago)4 June 2014 (10 years ago)
Launch price (MSRP)$499no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 3900 and A8-7100 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)4 (Quad-Core)
Threads244
Base clock speed3.1 GHz1.8 GHz
Boost clock speed4.3 GHz3 GHz
L1 cache768 KBno data
L2 cache6 MB4096 KB
L3 cache64 MBno data
Chip lithography7 nm, 12 nm28 nm
Die size2x 74 mm2245 mm2
Number of transistors7,600 million2410 Million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 3900 and A8-7100 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 configuration1no data
SocketAM4FP3
Power consumption (TDP)65 Watt19 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900 and A8-7100. 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 286x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA
AES-NI++
FMA-+
AVX++
FRTC-+
TrueAudio-+
PowerNow-+
PowerGating-+
Out-of-band client management-+
VirusProtect-+
HSA-+
Precision Boost 2+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900 and A8-7100 are enumerated here.

AMD-V++
IOMMU 2.0-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900 and A8-7100. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR3-1600
Maximum memory size128 GBno data
Max memory channels22
Maximum memory bandwidth51.196 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AAMD Radeon R5 Graphics
iGPU core countno data4
Enduro-+
Switchable graphics-+
UVD-+
VCE-+

Graphics interfaces

Available interfaces and connections of Ryzen 9 3900 and A8-7100 integrated GPUs.

DisplayPort-+
HDMI-+

Graphics API support

APIs supported by Ryzen 9 3900 and A8-7100 integrated GPUs, sometimes API versions are included.

DirectXno dataDirectX® 12
Vulkan-+

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900 and A8-7100.

PCIe version4.03.0
PCI Express lanes24no data

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 19.76
+1782%
A8-7100 1.05

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 30803
+1781%
A8-7100 1638

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 1680
+556%
A8-7100 256

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 9566
+1558%
A8-7100 577

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
+313%
A8-7100 1379

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
+969%
A8-7100 4134

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
+521%
A8-7100 2225

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
+1659%
A8-7100 2

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
+2008%
A8-7100 133

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
+348%
A8-7100 44

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
+304%
A8-7100 0.55

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
+890%
A8-7100 1.1

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
+1094%
A8-7100 11

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
+357%
A8-7100 56

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
+404%
A8-7100 1417

Gaming performance

Pros & cons summary


Performance score 19.76 1.05
Recency 24 September 2019 4 June 2014
Physical cores 12 4
Threads 24 4
Chip lithography 7 nm 28 nm
Power consumption (TDP) 65 Watt 19 Watt

Ryzen 9 3900 has a 1781.9% higher aggregate performance score, an age advantage of 5 years, 200% more physical cores and 500% more threads, and a 300% more advanced lithography process.

A8-7100, on the other hand, has 242.1% lower power consumption.

The Ryzen 9 3900 is our recommended choice as it beats the A8-7100 in performance tests.

Note that Ryzen 9 3900 is a desktop processor while A8-7100 is a notebook one.


Should you still have questions on choice between Ryzen 9 3900 and A8-7100, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 3900
Ryzen 9 3900
AMD A8-7100
A8-7100

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