Core i3-12100E vs Core i7-975

Primary details

Comparing Core i7-975 and Core i3-12100E processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1738	785
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.74	no data
Market segment	Desktop processor	Desktop processor
Series	Core i7 (Desktop)	no data
Architecture codename	Bloomfield (2008−2010)	Alder Lake-S (2022)
Release date	June 2009 (15 years ago)	4 January 2022 (2 years ago)
Launch price (MSRP)	$476	no data
Current price	$250 (0.5x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-975 and Core i3-12100E 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	8
Base clock speed	3.33 GHz	3.2 GHz
Boost clock speed	3.6 GHz	4.2 GHz
Bus support	1333 MHz	no data
L1 cache	64 KB (per core)	80K (per core)
L2 cache	256 KB (per core)	1.25 MB (per core)
L3 cache	8 MB (shared)	12 MB (shared)
Chip lithography	45 nm	10 nm
Die size	263 mm2	163 mm2
Maximum core temperature	68 °C	no data
Number of transistors	731 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	Yes	No

Compatibility

Information on Core i7-975 and Core i3-12100E 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	FCLGA1366	1700
Power consumption (TDP)	130 Watt	60 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-975 and Core i3-12100E. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-975 and Core i3-12100E technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-975 and Core i3-12100E are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-975 and Core i3-12100E. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4, DDR5 Dual-channel
Maximum memory size	24 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel UHD Graphics 730

Peripherals

Specifications and connection of peripherals supported by Core i7-975 and Core i3-12100E.

PCIe version	no data	5.0
PCI Express lanes	no data	20

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.

Core i3-12100E outperforms Core i7-975 by 308% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	2.26	9.21
Chip lithography	45 nm	10 nm
Power consumption (TDP)	130 Watt	60 Watt

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Should you still have questions on choice between Core i7-975 and Core i3-12100E, ask them in Comments section, and we shall answer.

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