A8-3820 vs i7-7660U

Primary details

Comparing Core i7-7660U and A8-3820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1729	2228
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	16.15	1.99
Architecture codename	Kaby Lake (2016−2019)	Llano (2011−2012)
Release date	3 January 2017 (7 years ago)	20 December 2011 (12 years ago)
Launch price (MSRP)	$415	no data

Detailed specifications

Core i7-7660U and A8-3820 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	2.5 GHz	2.5 GHz
Boost clock speed	4 GHz	2.8 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	25	no data
L1 cache	128 KB	128 KB (per core)
L2 cache	512 KB	1 MB (per core)
L3 cache	4 MB	0 KB
Chip lithography	14 nm	32 nm
Die size	no data	228 mm2
Maximum core temperature	100 °C	no data
Number of transistors	no data	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-7660U and A8-3820 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 (Uniprocessor)	1
Socket	FCBGA1356	FM1
Power consumption (TDP)	15 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7660U and A8-3820. 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	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
eDRAM	64 MB	no data
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
SIPP	+	-
Smart Response	+	no data

Security technologies

Core i7-7660U and A8-3820 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7660U and A8-3820 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 i7-7660U and A8-3820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	34.134 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel Iris Plus Graphics 640	AMD Radeon HD 6550D
Max video memory	32 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 i7-7660U and A8-3820 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-7660U and A8-3820 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@30Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Core i7-7660U and A8-3820 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-7660U and A8-3820.

PCIe version	3.0	no data
PCI Express lanes	12	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	2.57	1.37
Integrated graphics card	3.86	1.04
Recency	3 January 2017	20 December 2011
Physical cores	2	4
Chip lithography	14 nm	32 nm
Power consumption (TDP)	15 Watt	65 Watt

---

Should you still have questions on choice between Core i7-7660U and A8-3820, 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.

---