Athlon X4 750K vs Athlon X4 845

Primary details

Comparing Athlon X4 845 and Athlon X4 750K processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1657	1887
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.38	no data
Market segment	Desktop processor	Desktop processor
Architecture codename	Carrizo (2015−2018)	Trinity (2012−2013)
Release date	2 February 2016 (8 years ago)	2 October 2012 (11 years ago)
Current price	$50	$21

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon X4 845 and Athlon X4 750K 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	4	4
Base clock speed	3.5 GHz	3.4 GHz
Boost clock speed	3.8 GHz	4 GHz
L1 cache	320K	192K
L2 cache	2 MB	4 MB (shared)
Chip lithography	28 nm	32 nm
Die size	250 mm2	246 mm2
Maximum case temperature (TCase)	74 °C	74 °C
Number of transistors	3,100 million	1,303 million
64 bit support	+	+
Unlocked multiplier	Yes	Yes

Compatibility

Information on Athlon X4 845 and Athlon X4 750K 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	FM2+	FM2
Power consumption (TDP)	65 Watt	100 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X4 845 and Athlon X4 750K. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X4 845 and Athlon X4 750K are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X4 845 and Athlon X4 750K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3-2133

DDR3-1866

Peripherals

Specifications and connection of peripherals supported by Athlon X4 845 and Athlon X4 750K.

PCIe version	3.0	2.0
PCI Express lanes	8	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.

Athlon X4 845 outperforms Athlon X4 750K by 33% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	2.46	1.85
Recency	2 February 2016	2 October 2012
Chip lithography	28 nm	32 nm
Power consumption (TDP)	65 Watt	100 Watt

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Should you still have questions on choice between Athlon X4 845 and Athlon X4 750K, ask them in Comments section, and we shall answer.

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