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).

 

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: 6481 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 6481 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
6481
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 6481 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