Xeon D-2899NT vs D-1521

Primary details

Comparing Xeon D-1521 and Xeon D-2899NT processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1521	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.60	no data
Market segment	Server	Server
Series	Intel Xeon D	no data
Power efficiency	7.53	no data
Architecture codename	Broadwell (2015−2019)	Ice Lake-D (2022−2023)
Release date	1 November 2015 (9 years ago)	14 December 2023 (1 year ago)
Launch price (MSRP)	$199	$2,138

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon D-1521 and Xeon D-2899NT 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)	22 (Docosa-Core)
Threads	8	44
Base clock speed	2.4 GHz	2.2 GHz
Boost clock speed	2.7 GHz	3.1 GHz
Bus type	DMI 2.0	no data
Multiplier	24	no data
L1 cache	64K (per core)	80 KB (per core)
L2 cache	256K (per core)	1.25 MB (per core)
L3 cache	1.5 MB (per core)	30 MB (shared)
Chip lithography	14 nm	10 nm
Die size	246.24 mm2	no data
Maximum case temperature (TCase)	80 °C	no data
Number of transistors	3,200 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon D-1521 and Xeon D-2899NT 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)	1
Socket	FCBGA1667	FCBGA2579
Power consumption (TDP)	45 Watt	135 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon D-1521 and Xeon D-2899NT. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	Intel® AVX-512
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	+
GPIO	+	no data
Deep Learning Boost	-	+

Security technologies

Xeon D-1521 and Xeon D-2899NT technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon D-1521 and Xeon D-2899NT are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon D-1521 and Xeon D-2899NT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR3	DDR4
Maximum memory size	128 GB	1 TB
Max memory channels	2	4
Maximum memory bandwidth	34.124 GB/s	no data
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon D-1521 and Xeon D-2899NT.

PCIe version	2.0/3.0	4.0
PCI Express lanes	24	32
USB revision	2.0/3.0	3.0
Total number of SATA ports	6	no data
Max number of SATA 6 Gb/s Ports	no data	24
Number of USB ports	8	4
Integrated LAN	+	+
UART	+	no data

Pros & cons summary

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Recency	1 November 2015	14 December 2023
Physical cores	4	22
Threads	8	44
Chip lithography	14 nm	10 nm
Power consumption (TDP)	45 Watt	135 Watt

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Should you still have questions on choice between Xeon D-1521 and Xeon D-2899NT, ask them in Comments section, and we shall answer.

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