EPYC 9645 vs A8-7670K

Primary details

Comparing A8-7670K and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1916	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	2.00	no data
Architecture codename	Godaveri (2014−2016)	Turin (2024)
Release date	20 July 2015 (9 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$11,048

Detailed specifications

A8-7670K and EPYC 9645 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	4 (Quad-Core)	96
Threads	4	192
Base clock speed	3.6 GHz	2.3 GHz
Boost clock speed	3.9 GHz	3.7 GHz
L1 cache	256 KB	80 KB (per core)
L2 cache	4096 KB	1 MB (per core)
L3 cache	no data	256 MB (shared)
Chip lithography	28 nm	3 nm
Die size	245 mm2	no data
Maximum core temperature	72 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	2,411 million	no data
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on A8-7670K and EPYC 9645 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	2
Socket	FM2+	SP5
Power consumption (TDP)	95 Watt	320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-7670K and EPYC 9645. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	-
AVX	+	+
FRTC	+	-
FreeSync	+	-
PowerTune	+	-
DualGraphics	+	-
TrueAudio	+	-
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-7670K and EPYC 9645 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-7670K and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-2133	DDR5
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R7 Graphics	N/A
iGPU core count	6	no data
Number of pipelines	512	no data
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A8-7670K and EPYC 9645 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A8-7670K and EPYC 9645 integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	+	-

Peripherals

Specifications and connection of peripherals supported by A8-7670K and EPYC 9645.

PCIe version	3.0	5.0
PCI Express lanes	16	128

Pros & cons summary

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Recency	20 July 2015	10 October 2024
Physical cores	4	96
Threads	4	192
Chip lithography	28 nm	3 nm
Power consumption (TDP)	95 Watt	320 Watt

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