Phenom II X4 965 BE (125W) vs Xeon D-1521

Primary details

Comparing Xeon D-1521 and Phenom II X4 965 BE (125W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1420	1988
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.15	1.93
Market segment	Server	Desktop processor
Series	Intel Xeon D	no data
Architecture codename	Broadwell (2015−2019)	Deneb (2009−2011)
Release date	1 November 2015 (8 years ago)	November 2009 (14 years ago)
Launch price (MSRP)	$199	no data
Current price	$2202 (11.1x MSRP)	$88

Cost-effectiveness evaluation

Performance per price, higher is better.

Phenom II X4 965 BE (125W) has 1187% better value for money than Xeon D-1521.

Detailed specifications

Xeon D-1521 and Phenom II X4 965 BE (125W) 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)	4 (Quad-Core)
Threads	8	4
Base clock speed	2.4 GHz	no data
Boost clock speed	2.7 GHz	3.4 GHz
L1 cache	64K (per core)	128 KB (per core)
L2 cache	256K (per core)	512 KB (per core)
L3 cache	1.5 MB (per core)	6 MB (shared)
Chip lithography	14 nm	45 nm
Die size	246.24 mm2	258 mm2
Maximum case temperature (TCase)	80 °C	no data
Number of transistors	3,200 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon D-1521 and Phenom II X4 965 BE (125W) 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	1
Socket	FCBGA1667	AM3
Power consumption (TDP)	45 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon D-1521 and Phenom II X4 965 BE (125W). You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon D-1521 and Phenom II X4 965 BE (125W) technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon D-1521 and Phenom II X4 965 BE (125W) 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 Xeon D-1521 and Phenom II X4 965 BE (125W). Depending on the motherboard, higher memory frequencies may be supported.

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

Peripherals

Specifications and connection of peripherals supported by Xeon D-1521 and Phenom II X4 965 BE (125W).

PCIe version	2.0/3.0	no data
PCI Express lanes	32	no data
USB revision	2.0/3.0	no data
Total number of SATA ports	6	no data
Number of USB ports	8	no data
Integrated LAN	+	no data
UART	+	no data

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.

Xeon D-1521 outperforms Phenom II X4 965 BE (125W) by 124% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	3.68	1.64
Threads	8	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	45 Watt	125 Watt

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Should you still have questions on choice between Xeon D-1521 and Phenom II X4 965 BE (125W), ask them in Comments section, and we shall answer.

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