Intel Core i7-4820K vs Intel Core i5-2405S

Comparative analysis of Intel Core i7-4820K and Intel Core i5-2405S processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces. 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).

Intel Core i7-4820K

Intel Core i5-2405S

Differences

Reasons to consider the Intel Core i7-4820K

CPU is newer: launch date 2 year(s) 4 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more threads: 8 vs 4
Around 18% higher clock speed: 3.90 GHz vs 3.30 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 67% more L3 cache; more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 64 GB vs 32 GB
Around 32% better performance in PassMark - Single thread mark: 1957 vs 1478
2x better performance in PassMark - CPU mark: 6482 vs 3224
Around 38% better performance in Geekbench 4 - Single Core: 848 vs 615
Around 89% better performance in Geekbench 4 - Multi-Core: 3531 vs 1870

Specifications (specs)
Launch date	September 2013 vs May 2011
Unlocked	Unlocked vs Locked
Number of threads	8 vs 4
Maximum frequency	3.90 GHz vs 3.30 GHz
Manufacturing process technology	22 nm vs 32 nm
L3 cache	10240 KB (shared) vs 6144 KB (shared)
Maximum memory size	64 GB vs 32 GB
Benchmarks
PassMark - Single thread mark	1957 vs 1478
PassMark - CPU mark	6482 vs 3224
Geekbench 4 - Single Core	848 vs 615
Geekbench 4 - Multi-Core	3531 vs 1870

Reasons to consider the Intel Core i5-2405S

Around 3% higher maximum core temperature: 69.1°C vs 66.8°C
2x lower typical power consumption: 65 Watt vs 130 Watt

Maximum core temperature	69.1°C vs 66.8°C
Thermal Design Power (TDP)	65 Watt vs 130 Watt

Compare benchmarks

CPU 1: Intel Core i7-4820K
CPU 2: Intel Core i5-2405S

PassMark - Single thread mark

CPU 1

CPU 2

1957

1478

PassMark - CPU mark

CPU 1

CPU 2

6482

3224

Geekbench 4 - Single Core

CPU 1

CPU 2

848

615

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3531

1870

Name	Intel Core i7-4820K	Intel Core i5-2405S
PassMark - Single thread mark	1957	1478
PassMark - CPU mark	6482	3224
Geekbench 4 - Single Core	848	615
Geekbench 4 - Multi-Core	3531	1870
3DMark Fire Strike - Physics Score	3874
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.079
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	94.62
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.648
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.812
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	6.745

Compare specifications (specs)

	Intel Core i7-4820K	Intel Core i5-2405S
Essentials
Architecture codename	Ivy Bridge E	Sandy Bridge
Launch date	September 2013	May 2011
Launch price (MSRP)	$399	$472
Place in performance rating	2119	2109
Price now	$594.96	$164.40
Processor Number	i7-4820K	i5-2405S
Series	Intel® Core™ X-series Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	4.81	9.07
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.70 GHz	2.50 GHz
Bus Speed	5 GT/s DMI2	5 GT/s DMI
Die size	257 mm	216 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	10240 KB (shared)	6144 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	66.8°C	69.1°C
Maximum frequency	3.90 GHz	3.30 GHz
Number of cores	4	4
Number of threads	8	4
Transistor count	1860 million	1160 million
Unlocked
Memory
Max memory channels	4	2
Maximum memory bandwidth	59.7 GB/s	21 GB/s
Maximum memory size	64 GB	32 GB
Supported memory types	DDR3 1333/1600/1866	DDR3 1066/1333
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	52.5mm x 45.0mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011	LGA1155, FCLGA1155
Thermal Design Power (TDP)	130 Watt	65 Watt
Peripherals
Max number of PCIe lanes	40	16
PCI Express revision	3.0	2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2, Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Smart Response technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Flexible Display interface (FDI)
Intel® Fast Memory Access
Intel® Flex Memory Access
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Graphics
Device ID		0x112
Graphics base frequency		850 MHz
Graphics max dynamic frequency		1.10 GHz
Graphics max frequency		1.1 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 3000
Graphics interfaces
Number of displays supported		2
Wireless Display (WiDi) support