Xeon Platinum 8581V vs Athlon X2 QL-66

Primary details

Comparing Athlon X2 QL-66 and Xeon Platinum 8581V processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	2x AMD Athlon	no data
Architecture codename	Lion (2008−2009)	Emerald Rapids
Release date	1 September 2009 (14 years ago)	1 October 2023 (less than a year ago)
Current price	$5.99	no data

Detailed specifications

Athlon X2 QL-66 and Xeon Platinum 8581V 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)	60 (Hexaconta-Core)
Threads	2	120
Base clock speed	no data	2 GHz
Boost clock speed	2.2 GHz	3.9 GHz
Bus support	3600 MHz	no data
L1 cache	256 KB	80 KB (per core)
L2 cache	1 MB	2 MB (per core)
L3 cache	no data	300 MB (shared)
Chip lithography	65 nm	Intel 7 nm
Die size	no data	2x 763 mm2
Maximum core temperature	100 °C	74 °C
Maximum case temperature (TCase)	no data	74 °C
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Athlon X2 QL-66 and Xeon Platinum 8581V 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	1
Socket	S1g2	FCLGA4677
Power consumption (TDP)	35 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X2 QL-66 and Xeon Platinum 8581V. 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	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	no data	+
AVX	no data	+
PowerNow	+	no data
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
Speed Shift	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	no data	+
Status	no data	Launched

Security technologies

Athlon X2 QL-66 and Xeon Platinum 8581V technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X2 QL-66 and Xeon Platinum 8581V are enumerated here.

VT-d	no data	+
VT-x	no data	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X2 QL-66 and Xeon Platinum 8581V. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR5 @ 4800 MT/s (1 DPC)
Maximum memory size	no data	4 TB
Max memory channels	no data	8
ECC memory support	no data	+

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 Xeon Platinum 8581V.

PCIe version	no data	5.0
PCI Express lanes	no data	80

Pros & cons summary

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Recency	1 September 2009	1 October 2023
Physical cores	2	60
Threads	2	120
Power consumption (TDP)	35 Watt	270 Watt

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Should you still have questions on choice between Athlon X2 QL-66 and Xeon Platinum 8581V, ask them in Comments section, and we shall answer.

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