A4-5145M vs i7-5557U

Primary details

Comparing Core i7-5557U and A4-5145M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1944	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	AMD A-Series
Power efficiency	6.59	no data
Architecture codename	Broadwell-U (2015)	Richland (2013−2014)
Release date	1 March 2015 (9 years ago)	1 June 2013 (11 years ago)
Launch price (MSRP)	$426	no data

Detailed specifications

Core i7-5557U and A4-5145M 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)	2 (Dual-core)
Threads	4	2
Base clock speed	3.1 GHz	2 GHz
Boost clock speed	3.4 GHz	2.6 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	128 KB (per core)
L2 cache	256K (per core)	512K (per core)
L3 cache	4 MB (shared)	0 KB
Chip lithography	14 nm	32 nm
Die size	133 mm2	246 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	105 °C	71 °C
Number of transistors	1900 Million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-5557U and A4-5145M 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	FCBGA1168	FP2
Power consumption (TDP)	28 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5557U and A4-5145M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA
AES-NI	+	+
FMA	-	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Smart Response	+	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i7-5557U and A4-5145M technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-5557U and A4-5145M 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 i7-5557U and A4-5145M. 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	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel Iris Graphics 6100	AMD Radeon HD 8310G
Max video memory	16 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-5557U and A4-5145M integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-5557U and A4-5145M integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	2560x1600@60Hz	no data
Max resolution over DisplayPort	3840x2160@60Hz	no data

Graphics API support

APIs supported by Core i7-5557U and A4-5145M 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 i7-5557U and A4-5145M.

PCIe version	2.0	no data
PCI Express lanes	12	no data

Pros & cons summary

---

Recency	1 March 2015	1 June 2013
Threads	4	2
Chip lithography	14 nm	32 nm
Power consumption (TDP)	28 Watt	17 Watt

---

Should you still have questions on choice between Core i7-5557U and A4-5145M, 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.

---