Intel Core i3-1125G4 vs Intel Core i5-2500K

Comparative analysis of Intel Core i3-1125G4 and Intel Core i5-2500K processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Peripherals. 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 i3-1125G4

Intel Core i5-2500K

Differences

Reasons to consider the Intel Core i3-1125G4

4 more threads: 8 vs 4
Around 38% higher maximum core temperature: 100°C vs 72.6°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 10 nm SuperFin vs 32 nm
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
5x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 33% 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 45% better performance in PassMark - Single thread mark: 2454 vs 1698
2.3x better performance in PassMark - CPU mark: 9423 vs 4129

Specifications (specs)
Number of threads	8 vs 4
Maximum core temperature	100°C vs 72.6°C
Manufacturing process technology	10 nm SuperFin vs 32 nm
L1 cache	384 KB vs 64 KB (per core)
L2 cache	5 MB vs 256 KB (per core)
L3 cache	8 MB vs 6144 KB (shared)
Maximum memory size	64 GB vs 32 GB
Benchmarks
PassMark - Single thread mark	2454 vs 1698
PassMark - CPU mark	9423 vs 4129

Reasons to consider the Intel Core i5-2500K

Processor is unlocked, an unlocked multiplier allows for easier overclocking

Unlocked	Unlocked vs Locked

Compare benchmarks

CPU 1: Intel Core i3-1125G4
CPU 2: Intel Core i5-2500K

PassMark - Single thread mark

CPU 1

CPU 2

2454

1698

PassMark - CPU mark

CPU 1

CPU 2

9423

4129

Name	Intel Core i3-1125G4	Intel Core i5-2500K
PassMark - Single thread mark	2454	1698
PassMark - CPU mark	9423	4129
Geekbench 4 - Single Core		806
Geekbench 4 - Multi-Core		2657
3DMark Fire Strike - Physics Score		1575
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		3.325
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		78.071
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.384
CompuBench 1.5 Desktop - Video Composition (Frames/s)		1.818
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		4.627

Compare specifications (specs)

	Intel Core i3-1125G4	Intel Core i5-2500K
Essentials
Architecture codename	Tiger Lake	Sandy Bridge
Launch date	Q1'21	January 2011
Launch price (MSRP)	$281	$289
Place in performance rating	966	2447
Processor Number	i3-1125G4	i5-2500K
Series	11th Generation Intel Core i3 Processors	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Desktop
Price now		$123.99
Value for money (0-100)		15.38
Performance
64 bit support
Bus Speed	4 GT/s	5 GT/s DMI
L1 cache	384 KB	64 KB (per core)
L2 cache	5 MB	256 KB (per core)
L3 cache	8 MB	6144 KB (shared)
Manufacturing process technology	10 nm SuperFin	32 nm
Maximum core temperature	100°C	72.6°C
Maximum frequency	3.70 GHz	3.70 GHz
Number of cores	4	4
Number of threads	8	4
Base frequency		3.30 GHz
Die size		216 mm
Transistor count		1160 million
Unlocked
Memory
Max memory channels	2	2
Maximum memory size	64 GB	32 GB
Supported memory types	DDR4-3200, LPDDR4x-3733	DDR3 1066/1333
Maximum memory bandwidth		21 GB/s
Graphics
Device ID	0x9A78	0x112
Execution Units	48
Graphics max dynamic frequency	1.25 GHz	1.10 GHz
Intel® Clear Video HD technology
Intel® Quick Sync Video
Processor graphics	Intel UHD Graphics for 11th Gen Intel Processors	Intel® HD Graphics 3000
Graphics base frequency		850 MHz
Graphics max frequency		1.1 GHz
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Graphics interfaces
Number of displays supported	4	2
Wireless Display (WiDi) support
Graphics image quality
Max resolution over DisplayPort	7680x4320@60Hz
Max resolution over eDP	4096x2304@60Hz
Graphics API support
DirectX	12.1
OpenGL	4.6
Compatibility
Configurable TDP-down	12 Watt
Configurable TDP-down Frequency	900 MHz
Configurable TDP-up	28 Watt
Configurable TDP-up Frequency	2.00 GHz
Max number of CPUs in a configuration	1	1
Package Size	46.5x25	37.5mm x 37.5mm
Sockets supported	FCBGA1449	LGA1155
Low Halogen Options Available
Thermal Design Power (TDP)		95 Watt
Security & Reliability
Intel® OS Guard
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Mode-based Execute Control (MBE)
Secure Boot
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Advanced Technologies
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Speed Shift technology
Thermal Monitoring
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Peripherals
Max number of PCIe lanes		16
PCI Express revision		2.0