Core i5-11400T vs Core i7-2657M

Primary details

Comparing Core i7-2657M and Core i5-11400T processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2360	812
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	50.86
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Architecture codename	Sandy Bridge (2011−2013)	Rocket Lake (2021)
Release date	3 January 2011 (13 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	$317	$182
Current price	$618 (1.9x MSRP)	$113 (0.6x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-2657M and Core i5-11400T 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)	6 (Hexa-Core)
Threads	4	12
Base clock speed	1.6 GHz	1.3 GHz
Boost clock speed	2.7 GHz	3.7 GHz
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	4 MB	12 MB (shared)
Chip lithography	32 nm	14 nm
Die size	149 mm2	276 mm2
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	624 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No

Compatibility

Information on Core i7-2657M and Core i5-11400T 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	FCBGA1023	FCLGA1200
Power consumption (TDP)	17 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2657M and Core i5-11400T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
FMA	+	no data
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	+	2.0
Hyper-Threading Technology	+	+
TSX	no data	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	no data	-
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	Discontinued

Security technologies

Core i7-2657M and Core i5-11400T technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2657M and Core i5-11400T are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2657M and Core i5-11400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1066, DDR3-1333	DDR4
Maximum memory size	8.01 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	21.3 GB/s	50 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 3000	Intel UHD Graphics 730
Max video memory	no data	64 GB
Quick Sync Video	+	+
Clear Video	no data	+
Clear Video HD	+	+
Graphics max frequency	1 GHz	1.2 GHz
Execution Units	no data	24
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i7-2657M and Core i5-11400T integrated GPUs.

Number of displays supported	2	3
eDP	+	no data
DisplayPort	+	no data
HDMI	+	no data
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-2657M and Core i5-11400T integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@60Hz
Max resolution over eDP	no data	5120 x 3200 @60Hz
Max resolution over DisplayPort	no data	5120 x 3200 @60Hz

Graphics API support

APIs supported by Core i7-2657M and Core i5-11400T integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core i7-2657M and Core i5-11400T.

PCIe version	2.0	4.0
PCI Express lanes	16	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

Core i5-11400T outperforms Core i7-2657M by 764% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.02	8.81
Recency	3 January 2011	16 March 2021
Physical cores	2	6
Threads	4	12
Cost	$317	$182
Chip lithography	32 nm	14 nm
Power consumption (TDP)	17 Watt	35 Watt

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Should you still have questions on choice between Core i7-2657M and Core i5-11400T, ask them in Comments section, and we shall answer.

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