Xeon Gold 5520 vs Atom Z550

Primary details

Comparing Atom Z550 and Xeon Gold 5520 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	Intel Atom	no data
Architecture codename	Silverthorne (2008−2010)	no data
Release date	8 April 2009 (15 years ago)	1 October 2023 (less than a year ago)

Detailed specifications

Atom Z550 and Xeon Gold 5520 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	1 (Single-Core)	no data
Threads	2	56
Base clock speed	2 GHz	2.2 GHz
Boost clock speed	0.1 GHz	4 GHz
Bus support	533.33 MT/s	no data
L1 cache	56 KB	no data
L2 cache	512 KB	no data
L3 cache	0 KB	52.5 MB
Chip lithography	45 nm	Intel 7 nm
Die size	24.18 mm27.8 mm × 3.1 mm	no data
Maximum core temperature	90 °C	85 °C
Number of transistors	47 Million	no data
64 bit support	-	-
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Atom Z550 and Xeon Gold 5520 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 (Uniprocessor)	no data
Socket	PBGA441	FCLGA4677
Power consumption (TDP)	2.4 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z550 and Xeon Gold 5520. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	no data	+
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	+	+
TSX	no data	+
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	+	no data
FSB parity	-	no data
Status	Discontinued	Launched

Security technologies

Atom Z550 and Xeon Gold 5520 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z550 and Xeon Gold 5520 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z550 and Xeon Gold 5520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR5-4800, DDR5-4400
Maximum memory size	no data	4 TB
Max memory channels	no data	8
ECC memory support	no data	+

Peripherals

Specifications and connection of peripherals supported by Atom Z550 and Xeon Gold 5520.

PCIe version	no data	5.0
PCI Express lanes	no data	80

Pros & cons summary

---

Recency	8 April 2009	1 October 2023
Threads	2	56
Power consumption (TDP)	2 Watt	205 Watt

---

Should you still have questions on choice between Atom Z550 and Xeon Gold 5520, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---