i7-1280P vs Xeon E5440

Primary details

Comparing Xeon E5440 and Core i7-1280P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2137	584
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	no data	Intel Alder Lake-P
Power efficiency	1.77	43.51
Architecture codename	no data	Alder Lake-P (2022)
Release date	1 January 2008 (16 years ago)	23 February 2022 (2 years ago)

Detailed specifications

Xeon E5440 and Core i7-1280P 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	no data	14 (Tetradeca-Core)
Threads	no data	20
Base clock speed	2.83 GHz	1.8 GHz
Boost clock speed	no data	4.8 GHz
L1 cache	no data	80K (per core)
L2 cache	no data	1.25 MB (per core)
L3 cache	12 MB L2 Cache	24 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	no data	217 mm2
Maximum core temperature	67 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	+
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5440 and Core i7-1280P 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	no data	1
Socket	LGA771	FCBGA1744
Power consumption (TDP)	80 Watt	28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5440 and Core i7-1280P. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	no data	+
SIPP	-	+
Demand Based Switching	+	no data
Turbo Boost Max 3.0	no data	+
FSB parity	+	no data
Deep Learning Boost	-	+

Security technologies

Xeon E5440 and Core i7-1280P technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5440 and Core i7-1280P are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5440 and Core i7-1280P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR4, DDR5
Maximum memory size	no data	64 GB
Max memory channels	no data	2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® Iris® Xe Graphics eligible
Quick Sync Video	-	+
Graphics max frequency	no data	1.45 GHz
Execution Units	no data	96

Graphics interfaces

Available interfaces and connections of Xeon E5440 and Core i7-1280P integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon E5440 and Core i7-1280P integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2304 @ 60Hz
Max resolution over eDP	no data	4096 x 2304 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Xeon E5440 and Core i7-1280P integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Xeon E5440 and Core i7-1280P.

PCIe version	no data	4.0
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.

---

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.

---

Pros & cons summary

---

Performance score	1.55	13.36
Recency	1 January 2008	23 February 2022
Power consumption (TDP)	80 Watt	28 Watt

---

Should you still have questions on choice between Xeon E5440 and Core i7-1280P, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---