Phenom II X4 945 (125W) vs Xeon X3450

Primary details

Comparing Xeon X3450 and Phenom II X4 945 (125W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2005	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	1.79	no data
Architecture codename	no data	Deneb (2009−2011)
Release date	1 July 2009 (15 years ago)	23 April 2009 (15 years ago)

Detailed specifications

Xeon X3450 and Phenom II X4 945 (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	2.66 GHz	3 GHz
Boost clock speed	3.2 GHz	3 GHz
L1 cache	no data	128 KB (per core)
L2 cache	no data	512 KB (per core)
L3 cache	8 MB Intel® Smart Cache	6 MB (shared)
Chip lithography	45 nm	45 nm
Die size	no data	258 mm2
Maximum core temperature	73 °C	no data
Number of transistors	no data	758 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon X3450 and Phenom II X4 945 (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	FCLGA1156,LGA1156	AM3
Power consumption (TDP)	95 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X3450 and Phenom II X4 945 (125W). You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
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 Phenom II X4 945 (125W) 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 Phenom II X4 945 (125W) 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 Phenom II X4 945 (125W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066, DDR3-1333	DDR3
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

no data

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon X3450 and Phenom II X4 945 (125W).

PCIe version	2.0	2.0
PCI Express lanes	16	no data

Pros & cons summary

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Recency	1 July 2009	23 April 2009
Threads	8	4
Power consumption (TDP)	95 Watt	125 Watt

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Should you still have questions on choice between Xeon X3450 and Phenom II X4 945 (125W), ask them in Comments section, and we shall answer.

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