Athlon II X4 651K vs i5-750

Primary details

Comparing Core i5-750 and Athlon II X4 651K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2092	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.15	no data
Market segment	Desktop processor	Desktop processor
Series	Core i5 (Desktop)	no data
Power efficiency	1.59	no data
Architecture codename	Lynnfield (2009−2010)	Llano (2011−2012)
Release date	8 September 2009 (15 years ago)	14 November 2011 (12 years ago)
Launch price (MSRP)	$150	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i5-750 and Athlon II X4 651K 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	2.66 GHz	3 GHz
Boost clock speed	3.2 GHz	3 GHz
Bus rate	2500 MHz	no data
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	32 nm
Die size	296 mm2	228 mm2
Maximum core temperature	73 °C	no data
Number of transistors	774 million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i5-750 and Athlon II X4 651K 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	FM1
Power consumption (TDP)	95 Watt	100 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-750 and Athlon II X4 651K. 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

Core i5-750 and Athlon II X4 651K 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 Core i5-750 and Athlon II X4 651K 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 Core i5-750 and Athlon II X4 651K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-750 and Athlon II X4 651K.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	8 September 2009	14 November 2011
Chip lithography	45 nm	32 nm
Power consumption (TDP)	95 Watt	100 Watt

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Should you still have questions on choice between Core i5-750 and Athlon II X4 651K, ask them in Comments section, and we shall answer.

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