i7-1255U vs Atom Z2580

Place in the ranking	3163	895
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	no data	Intel Alder Lake-M
Power efficiency	7.88	53.78
Architecture codename	Clovertrail (2013)	Alder Lake-U (2022)
Release date	27 February 2013 (11 years ago)	23 February 2022 (2 years ago)

Detailed specifications

Atom Z2580 and Core i7-1255U 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	2 (Dual-core)	10 (Deca-Core)
Threads	4	12
Base clock speed	no data	1.7 GHz
Boost clock speed	2 GHz	4.7 GHz
L1 cache	64K (per core)	80K (per core)
L2 cache	512K (per core)	1.25 MB (per core)
L3 cache	0 KB	12 MB (shared)
Chip lithography	32 nm	10 nm
Die size	65 mm²	no data
Maximum core temperature	90 °C	100 °C
Number of transistors	140 million	no data
64 bit support	-	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom Z2580 and Core i7-1255U 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	FC-MB4760	Intel BGA 1744
Power consumption (TDP)	3 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z2580 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	no data
AES-NI	-	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Hyper-Threading Technology	+	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
PAE	32 Bit	no data
Smart Idle	+	no data

Security technologies

Atom Z2580 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z2580 and Core i7-1255U are enumerated here.

VT-d	no data	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z2580 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR4, DDR5
Maximum memory size	2 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	8.5 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	PowerVR SGX544MP2 (400 MHz)	Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz)
Graphics max frequency	533 MHz	no data

Graphics interfaces

Available interfaces and connections of Atom Z2580 and Core i7-1255U integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Atom Z2580 and Core i7-1255U.

PCIe version	no data	4.0
PCI Express lanes	no data	20
USB revision	2.0 OTG, USB-SPH 2.0	no data
Number of USB ports	2	no data
UART	3	no data

Gaming performance

Pros & cons summary

Performance score	0.25	8.53
Recency	27 February 2013	23 February 2022
Physical cores	2	10
Threads	4	12
Chip lithography	32 nm	10 nm
Power consumption (TDP)	3 Watt	15 Watt

Atom Z2580 has 400% lower power consumption.

i7-1255U, on the other hand, has a 3312% higher aggregate performance score, an age advantage of 8 years, 400% more physical cores and 200% more threads, and a 220% more advanced lithography process.

The Core i7-1255U is our recommended choice as it beats the Atom Z2580 in performance tests.

Should you still have questions on choice between Atom Z2580 and Core i7-1255U, ask them in Comments section, and we shall answer.