Xeon E5440 vs i7-4558U

Primary details

Comparing Core i7-4558U and Xeon E5440 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1965	2139
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core i7	no data
Power efficiency	6.35	1.77
Architecture codename	Haswell-ULT (2013)	no data
Release date	4 June 2013 (11 years ago)	1 January 2008 (16 years ago)
Launch price (MSRP)	$454	no data

Detailed specifications

Core i7-4558U and Xeon E5440 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)	no data
Threads	4	no data
Base clock speed	2.8 GHz	2.83 GHz
Boost clock speed	3.3 GHz	no data
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	4 MB (shared)	12 MB L2 Cache
Chip lithography	22 nm	45 nm
Die size	118 mm2	no data
Maximum core temperature	100 °C	67 °C
Number of transistors	1,300 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.85V-1.35V

Compatibility

Information on Core i7-4558U and Xeon E5440 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	no data
Socket	FCBGA1168	LGA771
Power consumption (TDP)	28 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4558U and Xeon E5440. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	no data	+
GPIO	+	no data
Smart Connect	+	no data
FDI	+	no data
AMT	9.5	no data
FSB parity	no data	+
HD Audio	+	no data
RST	+	no data

Security technologies

Core i7-4558U and Xeon E5440 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4558U and Xeon E5440 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4558U and Xeon E5440. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel Iris Graphics 5100	no data
Max video memory	2 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.2 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-4558U and Xeon E5440 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
VGA	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-4558U and Xeon E5440 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	3200x2000@60Hz	no data
Max resolution over DisplayPort	3200x2000@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Core i7-4558U and Xeon E5440 integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	no data
OpenGL	4.3	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-4558U and Xeon E5440.

PCIe version	2.0	no data
PCI Express lanes	12	no data
PCI support	-	no data
USB revision	3.0	no data
Total number of SATA ports	4	no data
Max number of SATA 6 Gb/s Ports	4	no data
Integrated IDE	-	no data
Number of USB ports	4	no data
Integrated LAN	-	no data
UART	+	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.

---

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	1.95	1.55
Recency	4 June 2013	1 January 2008
Chip lithography	22 nm	45 nm
Power consumption (TDP)	28 Watt	80 Watt

---

Should you still have questions on choice between Core i7-4558U and Xeon E5440, 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.

---