A10-7800 vs Ryzen 9 3900

Primary details

Comparing Ryzen 9 3900 and A10-7800 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	289	1912
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	21.02	no data
Market segment	Desktop processor	Desktop processor
Series	AMD Matisse (Ryzen 3000 Desktop)	no data
Power efficiency	28.23	2.94
Architecture codename	Matisse (Zen 2) (2019−2020)	Kaveri (2014−2015)
Release date	24 September 2019 (5 years ago)	31 July 2014 (10 years ago)
Launch price (MSRP)	$499	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 3900 and A10-7800 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 cores	12 (Dodeca-Core)	4 (Quad-Core)
Threads	24	4
Base clock speed	3.1 GHz	3.5 GHz
Boost clock speed	4.3 GHz	3.9 GHz
L1 cache	64 KB (per core)	256 KB
L2 cache	512 KB (per core)	4096 KB
L3 cache	64 MB	no data
Chip lithography	7 nm, 12 nm	28 nm
Die size	2x 74 mm2	245 mm2
Maximum core temperature	no data	71 °C
Maximum case temperature (TCase)	no data	74 °C
Number of transistors	7,600 million	2,411 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 9 3900 and A10-7800 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 configuration	1	1
Socket	AM4	FM2+
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900 and A10-7800. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2	no data
AES-NI	+	+
FMA	-	+
AVX	+	+
FRTC	-	+
FreeSync	-	+
DualGraphics	-	+
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 A10-7800 are enumerated here.

AMD-V	+	+
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900 and A10-7800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR3-2133
Maximum memory size	128 GB	no data
Max memory channels	2	2
Maximum memory bandwidth	51.196 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	AMD Radeon R7 Graphics
iGPU core count	no data	8
Number of pipelines	no data	512
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+

Graphics interfaces

Available interfaces and connections of Ryzen 9 3900 and A10-7800 integrated GPUs.

DisplayPort	-	+
HDMI	-	+

Graphics API support

APIs supported by Ryzen 9 3900 and A10-7800 integrated GPUs, sometimes API versions are included.

DirectX	no data	DirectX® 12
Vulkan	-	+

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900 and A10-7800.

PCIe version	4.0	3.0
PCI Express lanes	24	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

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Pros & cons summary

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Performance score	19.39	2.02
Recency	24 September 2019	31 July 2014
Physical cores	12	4
Threads	24	4
Chip lithography	7 nm	28 nm

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Should you still have questions on choice between Ryzen 9 3900 and A10-7800, ask them in Comments section, and we shall answer.

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