Core i5-661 vs Core i3-7100

Primary details

Comparing Core i3-7100 and Core i5-661 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1606	2005
Place by popularity	65	not in top-100
Cost-effectiveness evaluation	3.28	0.35
Market segment	Desktop processor	Desktop processor
Series	Intel Core i3	no data
Architecture codename	Kaby Lake (2016−2019)	Clarkdale (2010−2011)
Release date	3 January 2017 (7 years ago)	7 January 2010 (14 years ago)
Launch price (MSRP)	$117	$252
Current price	$65 (0.6x MSRP)	$71 (0.3x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i3-7100 has 837% better value for money than i5-661.

Detailed specifications

Core i3-7100 and Core i5-661 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	4
Base clock speed	3.9 GHz	3.33 GHz
Boost clock speed	3.9 GHz	3.6 GHz
Bus support	8 GT/s	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	3 MB (shared)	4 MB (shared)
Chip lithography	14 nm	32 nm
Die size	no data	81 mm2
Maximum core temperature	100 °C	70 °C
Maximum case temperature (TCase)	65 °C	no data
Number of transistors	no data	382 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i3-7100 and Core i5-661 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	FCLGA1151	FCLGA1156
Power consumption (TDP)	51 Watt	87 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-7100 and Core i5-661. 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	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	1.0
Hyper-Threading Technology	+	+
TSX	-	no data
Idle States	+	+
Thermal Monitoring	+	-
SIPP	-	no data
Demand Based Switching	no data	-
PAE	no data	36 Bit
FDI	no data	+
Status	Discontinued	Discontinued

Security technologies

Core i3-7100 and Core i5-661 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-7100 and Core i5-661 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-7100 and Core i5-661. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3
Maximum memory size	64 GB	16.38 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	21 GB/s
ECC memory support	+	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 630	Intel® HD Graphics for Previous Generation Intel® Processors
Max video memory	64 GB	no data
Quick Sync Video	+	no data
Clear Video	+	no data
Clear Video HD	+	+
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i3-7100 and Core i5-661 integrated GPUs.

Number of displays supported

3

2

Graphics image quality

Maximum display resolutions supported by Core i3-7100 and Core i5-661 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	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 i3-7100 and Core i5-661 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 i3-7100 and Core i5-661.

PCIe version	3.0	2.0
PCI Express lanes	16	16

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.

Core i3-7100 outperforms Core i5-661 by 76% based on our aggregate benchmark results.

---

Pros & cons summary

---

Performance score	2.80	1.59
Recency	3 January 2017	7 January 2010
Cost	$117	$252
Chip lithography	14 nm	32 nm
Power consumption (TDP)	51 Watt	87 Watt

---

Should you still have questions on choice between Core i3-7100 and Core i5-661, 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.

---