EPYC 74F3 vs Athlon X2 QL-66

Primary details

Comparing Athlon X2 QL-66 and EPYC 74F3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3003	77
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	11.21
Market segment	Laptop	Server
Series	2x AMD Athlon	AMD EPYC
Power efficiency	1.08	15.06
Architecture codename	Lion (2008−2009)	Milan (2021−2023)
Release date	1 September 2009 (15 years ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	no data	$2,900

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon X2 QL-66 and EPYC 74F3 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	2 (Dual-core)	24 (Tetracosa-Core)
Threads	2	48
Base clock speed	no data	2.8 GHz
Boost clock speed	2.2 GHz	4 GHz
Bus rate	3600 MHz	no data
Multiplier	no data	32
L1 cache	256 KB	64 KB (per core)
L2 cache	1 MB	512 KB (per core)
L3 cache	no data	256 MB (shared)
Chip lithography	65 nm	7 nm+
Die size	no data	4x 81 mm2
Maximum core temperature	100 °C	no data
Number of transistors	no data	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Athlon X2 QL-66 and EPYC 74F3 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	no data	2
Socket	S1g2	SP3
Power consumption (TDP)	35 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X2 QL-66 and EPYC 74F3. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization	no data
AES-NI	-	+
AVX	-	+
PowerNow	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X2 QL-66 and EPYC 74F3 are enumerated here.

AMD-V

-

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X2 QL-66 and EPYC 74F3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR4-3200
Maximum memory size	no data	4 TiB
Maximum memory bandwidth	no data	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Athlon X2 QL-66 and EPYC 74F3.

PCIe version	no data	4.0
PCI Express lanes	no data	128

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	0.40	38.19
Recency	1 September 2009	15 March 2021
Physical cores	2	24
Threads	2	48
Chip lithography	65 nm	7 nm
Power consumption (TDP)	35 Watt	240 Watt

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Should you still have questions on choice between Athlon X2 QL-66 and EPYC 74F3, ask them in Comments section, and we shall answer.

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