Intel Core i5-3570K vs Intel Core i5-661

Comparative analysis of Intel Core i5-3570K and Intel Core i5-661 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

Intel Core i5-3570K

Intel Core i5-661

Differences

Reasons to consider the Intel Core i5-3570K

CPU is newer: launch date 2 year(s) 3 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more cores, run more applications at once: 4 vs 2
Around 6% higher clock speed: 3.80 GHz vs 3.60 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 95% higher maximum memory size: 32 GB vs 16.38 GB
Around 13% lower typical power consumption: 77 Watt vs 87 Watt
Around 42% better performance in PassMark - Single thread mark: 2048 vs 1443
2x better performance in PassMark - CPU mark: 4955 vs 2466
Around 64% better performance in Geekbench 4 - Single Core: 850 vs 518
2.3x better performance in Geekbench 4 - Multi-Core: 2851 vs 1214

Specifications (specs)
Launch date	8 April 2012 vs January 2010
Unlocked	Unlocked vs Locked
Number of cores	4 vs 2
Maximum frequency	3.80 GHz vs 3.60 GHz
Manufacturing process technology	22 nm vs 32 nm
L1 cache	256 KB vs 64 KB (per core)
L2 cache	1024 KB vs 256 KB (per core)
L3 cache	6144 KB vs 4096 KB (shared)
Maximum memory size	32 GB vs 16.38 GB
Thermal Design Power (TDP)	77 Watt vs 87 Watt
Benchmarks
PassMark - Single thread mark	2048 vs 1443
PassMark - CPU mark	4955 vs 2466
Geekbench 4 - Single Core	850 vs 518
Geekbench 4 - Multi-Core	2851 vs 1214

Reasons to consider the Intel Core i5-661

Around 4% higher maximum core temperature: 69.8°C vs 67.4°C

Maximum core temperature	69.8°C vs 67.4°C

Compare benchmarks

CPU 1: Intel Core i5-3570K
CPU 2: Intel Core i5-661

PassMark - Single thread mark

CPU 1

CPU 2

2048

1443

PassMark - CPU mark

CPU 1

CPU 2

4955

2466

Geekbench 4 - Single Core

CPU 1

CPU 2

850

518

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2851

1214

Name	Intel Core i5-3570K	Intel Core i5-661
PassMark - Single thread mark	2048	1443
PassMark - CPU mark	4955	2466
Geekbench 4 - Single Core	850	518
Geekbench 4 - Multi-Core	2851	1214
3DMark Fire Strike - Physics Score	1740
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.46
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	10.487
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.421
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.944
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	5.836
GFXBench 4.0 - T-Rex (Frames)	2421
GFXBench 4.0 - T-Rex (Fps)	2421

Compare specifications (specs)

	Intel Core i5-3570K	Intel Core i5-661
Essentials
Architecture codename	Ivy Bridge	Clarkdale
Launch date	8 April 2012	January 2010
Launch price (MSRP)	$235	$252
Place in performance rating	2239	2244
Price now	$143.99	$99.99
Processor Number	i5-3570K	i5-661
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	14.67	9.35
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.40 GHz	3.33 GHz
Bus Speed	5 GT/s DMI	2.5 GT/s DMI
Die size	160 mm	81 mm2
L1 cache	256 KB	64 KB (per core)
L2 cache	1024 KB	256 KB (per core)
L3 cache	6144 KB	4096 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum case temperature (TCase)	67 °C
Maximum core temperature	67.4°C	69.8°C
Maximum frequency	3.80 GHz	3.60 GHz
Number of cores	4	2
Number of threads	4	4
Transistor count	1400 Million	382 million
Unlocked
VID voltage range		0.6500V-1.4000V
Memory
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	21 GB/s
Maximum memory size	32 GB	16.38 GB
Supported memory types	DDR3 1333/1600	DDR3 1066/1333
Graphics
Device ID	0x152
Graphics base frequency	650 MHz	900 MHz
Graphics max dynamic frequency	1.15 GHz
Graphics max frequency	1.15 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel® HD Graphics 4000	Intel HD Graphics
Graphics interfaces
Number of displays supported	3	2
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1155	FCLGA1156
Thermal Design Power (TDP)	77 Watt	87 Watt
Thermal Solution	2011D
Peripherals
PCI Express revision	3.0	2.0
PCIe configurations	up to 1x16, 2x8, 1x8 & 2x4	1x16, 2x8
Max number of PCIe lanes		16
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Demand Based Switching
Physical Address Extensions (PAE)		36-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)