Athlon X4 940 vs Xeon X3450

Primary details

Comparing Xeon X3450 and Athlon X4 940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2019	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.51	no data
Market segment	Server	Desktop processor
Power efficiency	1.78	no data
Architecture codename	Lynnfield (2009−2010)	Bristol Ridge (2016−2019)
Release date	8 September 2009 (15 years ago)	27 July 2017 (7 years ago)
Launch price (MSRP)	$241	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon X3450 and Athlon X4 940 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	2.66 GHz	3.2 GHz
Boost clock speed	3.2 GHz	3.6 GHz
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	28 nm
Die size	296 mm2	246 mm2
Maximum case temperature (TCase)	73 °C	74 °C
Number of transistors	774 million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+

Compatibility

Information on Xeon X3450 and Athlon X4 940 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	FCLGA1156,LGA1156	AM4
Power consumption (TDP)	95 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X3450 and Athlon X4 940. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	-	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Demand Based Switching	+	no data
PAE	36 Bit	no data

Security technologies

Xeon X3450 and Athlon X4 940 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X3450 and Athlon X4 940 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X3450 and Athlon X4 940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066, DDR3-1333	DDR4 Dual-channel
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Xeon X3450 and Athlon X4 940.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	8 September 2009	27 July 2017
Threads	8	4
Chip lithography	45 nm	28 nm
Power consumption (TDP)	95 Watt	65 Watt

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Should you still have questions on choice between Xeon X3450 and Athlon X4 940, ask them in Comments section, and we shall answer.

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