A8 Pro-7150B vs i7-3940XM

Primary details

Comparing Core i7-3940XM and A8 Pro-7150B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1479	2484
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	AMD Kaveri
Power efficiency	6.33	4.80
Architecture codename	Ivy Bridge (2012−2013)	Kaveri (2014−2015)
Release date	3 September 2012 (12 years ago)	4 June 2014 (10 years ago)
Launch price (MSRP)	$1,096	no data

Detailed specifications

Core i7-3940XM and A8 Pro-7150B 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	4 (Quad-Core)	4 (Quad-Core)
Threads	8	4
Base clock speed	3 GHz	1.9 GHz
Boost clock speed	3.9 GHz	3.2 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	4096 KB
L3 cache	8 MB (shared)	no data
Chip lithography	22 nm	28 nm
Die size	160 mm2	245 mm2
Maximum core temperature	105 °C	no data
Number of transistors	1,400 million	2410 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-3940XM and A8 Pro-7150B 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	FCPGA988	FP3
Power consumption (TDP)	55 Watt	19 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3940XM and A8 Pro-7150B. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA
AES-NI	+	+
FMA	-	+
AVX	+	+
FRTC	-	+
TrueAudio	-	+
PowerNow	-	+
PowerGating	-	+
Out-of-band client management	-	+
VirusProtect	-	+
RAID	-	+
HSA	-	+
Enhanced SpeedStep (EIST)	+	no data
My WiFi	+	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
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i7-3940XM and A8 Pro-7150B technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3940XM and A8 Pro-7150B are enumerated here.

AMD-V	+	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3940XM and A8 Pro-7150B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-1600
Maximum memory size	32 GB	no data
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 4000	AMD Radeon R5 Graphics
iGPU core count	no data	6
Number of pipelines	no data	384
Quick Sync Video	+	-
Clear Video HD	+	no data
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+
Graphics max frequency	1.35 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-3940XM and A8 Pro-7150B integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	+
HDMI	+	+
SDVO	+	no data
CRT	+	no data

Graphics API support

APIs supported by Core i7-3940XM and A8 Pro-7150B integrated GPUs, sometimes API versions are included.

DirectX	no data	DirectX® 12
Vulkan	-	+

Peripherals

Specifications and connection of peripherals supported by Core i7-3940XM and A8 Pro-7150B.

PCIe version	3.0	3.0
PCI Express lanes	16	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	3.82	1.00
Recency	3 September 2012	4 June 2014
Threads	8	4
Chip lithography	22 nm	28 nm
Power consumption (TDP)	55 Watt	19 Watt

---

Should you still have questions on choice between Core i7-3940XM and A8 Pro-7150B, 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.

---