Xeon 6520P vs Celeron 2981U

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3045	109
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	32.32
Market segment	Laptop	Server
Series	Intel Celeron	no data
Power efficiency	no data	18.53
Designer	Intel	Intel
Manufacturer	no data	Intel
Architecture codename	Haswell (2013−2015)	Granite Rapids (2024−2025)
Release date	1 January 2014 (11 years ago)	24 February 2025 (less than a year ago)
Launch price (MSRP)	no data	$1,295

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Celeron 2981U and Xeon 6520P 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	1.6 GHz	2.4 GHz
Boost clock speed	1.6 GHz	4 GHz
Bus rate	5 GT/s	no data
L1 cache	128 KB	112 KB (per core)
L2 cache	512 KB	2 MB (per core)
L3 cache	2 MB	144 MB (shared)
Chip lithography	22 nm	Intel 3 nm
Die size	no data	598 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	79 °C
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Celeron 2981U and Xeon 6520P 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	FCBGA1168	FCLGA4710
Power consumption (TDP)	15 Watt	210 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 2981U and Xeon 6520P. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512, Intel® AMX
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	-	no data
GPIO	+	no data
Smart Connect	+	no data
FDI	-	no data
AMT	9.5	no data
Matrix Storage	-	no data
HD Audio	+	no data
RST	+	no data
Deep Learning Boost	-	+

Security technologies

Celeron 2981U and Xeon 6520P technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
SGX	no data	+
OS Guard	-	+
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 2981U and Xeon 6520P are enumerated here.

AMD-V	+	-
VT-d	-	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 2981U and Xeon 6520P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5(6400MT/s)
Maximum memory size	16 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for 4th Generation Intel Processors	N/A
Quick Sync Video	+	-
Clear Video	+	no data
Graphics max frequency	1 GHz	no data

Graphics interfaces

Available interfaces and connections of Celeron 2981U and Xeon 6520P integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Peripherals

Specifications and connection of peripherals supported by Celeron 2981U and Xeon 6520P.

PCIe version	2.0	5.0
PCI Express lanes	12	88
PCI support	-	no data
USB revision	3.0	no data
Total number of SATA ports	2	no data
Integrated IDE	-	no data
Number of USB ports	4	no data
Integrated LAN	-	no data
UART	+	no data

Synthetic benchmarks

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.

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Pros & cons summary

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Performance score	0.59	36.30
Recency	1 January 2014	24 February 2025
Physical cores	2	24
Threads	2	48
Power consumption (TDP)	15 Watt	210 Watt

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