Phenom II X2 545 vs FX-770K

Primary details

Comparing FX-770K and Phenom II X2 545 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1895	2528
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	5.38
Market segment	Desktop processor	Desktop processor
Architecture codename	Kaveri (2014−2015)	Callisto (2009−2010)
Release date	December 2014 (9 years ago)	June 2009 (15 years ago)
Launch price (MSRP)	no data	$50
Current price	$28	$14.95 (0.3x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

FX-770K and Phenom II X2 545 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)	2 (Dual-core)
Threads	4	2
Base clock speed	3.5 GHz	no data
Boost clock speed	3.9 GHz	3 GHz
L1 cache	256K	128 KB (per core)
L2 cache	4 MB	512 KB (per core)
L3 cache	no data	6 MB (per core)
Chip lithography	28 nm	45 nm
Die size	245 mm2	258 mm2
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	2,411 million	758 million
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	Yes	No

Compatibility

Information on FX-770K and Phenom II X2 545 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+	AM3
Power consumption (TDP)	65 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-770K and Phenom II X2 545. You'll probably need this information if you require some particular technology.

AES-NI	+	no data
FMA	+	no data
AVX	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by FX-770K and Phenom II X2 545 are enumerated here.

AMD-V

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-770K and Phenom II X2 545. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3-2133

DDR3

Peripherals

Specifications and connection of peripherals supported by FX-770K and Phenom II X2 545.

PCIe version	3.0	no data
PCI Express lanes	16	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.

FX-770K outperforms Phenom II X2 545 by 138% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.88	0.79
Physical cores	4	2
Threads	4	2
Chip lithography	28 nm	45 nm
Power consumption (TDP)	65 Watt	80 Watt

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Should you still have questions on choice between FX-770K and Phenom II X2 545, ask them in Comments section, and we shall answer.

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