Xeon X5677 vs i7-4940MX

Primary details

Comparing Core i7-4940MX and Xeon X5677 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1357	1606
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	1.05
Market segment	Laptop	Server
Series	Intel Core i7	no data
Power efficiency	7.14	2.31
Architecture codename	Haswell (2013−2015)	Westmere-EP (2010−2011)
Release date	20 January 2014 (10 years ago)	16 March 2010 (14 years ago)
Launch price (MSRP)	$1,096	$350

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-4940MX and Xeon X5677 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	8
Base clock speed	3.1 GHz	3.46 GHz
Boost clock speed	4 GHz	3.73 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	8 MB (shared)	12 MB (shared)
Chip lithography	22 nm	32 nm
Die size	177 mm2	239 mm2
Maximum core temperature	100 °C	80 °C
Maximum case temperature (TCase)	100 °C	no data
Number of transistors	1,400 million	1,170 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-4940MX and Xeon X5677 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	2
Socket	FCPGA946	FCLGA1366,LGA1366
Power consumption (TDP)	57 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4940MX and Xeon X5677. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.2
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	1.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	-
Demand Based Switching	no data	+
PAE	no data	40 Bit
FDI	+	no data

Security technologies

Core i7-4940MX and Xeon X5677 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 i7-4940MX and Xeon X5677 are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4940MX and Xeon X5677. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32 GB	288 GB
Max memory channels	2	3
Maximum memory bandwidth	25.6 GB/s	32 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 4600	no data
Max video memory	1.7 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.35 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-4940MX and Xeon X5677 integrated GPUs.

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

Peripherals

Specifications and connection of peripherals supported by Core i7-4940MX and Xeon X5677.

PCIe version	3	2.0
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	4.30	3.17
Recency	20 January 2014	16 March 2010
Chip lithography	22 nm	32 nm
Power consumption (TDP)	57 Watt	130 Watt

---

Should you still have questions on choice between Core i7-4940MX and Xeon X5677, 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.

---