Intel Core i5-12600K vs Intel Core i7-975

Comparative analysis of Intel Core i5-12600K and Intel Core i7-975 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 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 i5-12600K

Intel Core i7-975

Differences

Reasons to consider the Intel Core i5-12600K

CPU is newer: launch date 12 year(s) 5 month(s) later
Around 36% higher clock speed: 4.90 GHz vs 3.60 GHz
Around 47% higher maximum core temperature: 100°C vs 67.9°C
10x more L1 cache, more data can be stored in the L1 cache for quick access later
38x more L2 cache, more data can be stored in the L2 cache for quick access later
2.5x more L3 cache, more data can be stored in the L3 cache for quick access later
5.3x more maximum memory size: 128 GB vs 24 GB
2.6x better performance in PassMark - Single thread mark: 3929 vs 1501
7.9x better performance in PassMark - CPU mark: 27632 vs 3510

Specifications (specs)
Launch date	4 Nov 2021 vs June 2009
Maximum frequency	4.90 GHz vs 3.60 GHz
Maximum core temperature	100°C vs 67.9°C
L1 cache	640 KB vs 64 KB (per core)
L2 cache	9.5 MB vs 256 KB (per core)
L3 cache	20 MB vs 8192 KB (shared)
Maximum memory size	128 GB vs 24 GB
Benchmarks
PassMark - Single thread mark	3929 vs 1501
PassMark - CPU mark	27632 vs 3510

Reasons to consider the Intel Core i7-975

Processor is unlocked, an unlocked multiplier allows for easier overclocking

Unlocked	Unlocked vs Locked

Compare benchmarks

CPU 1: Intel Core i5-12600K
CPU 2: Intel Core i7-975

PassMark - Single thread mark

CPU 1

CPU 2

3929

1501

PassMark - CPU mark

CPU 1

CPU 2

27632

3510

Name	Intel Core i5-12600K	Intel Core i7-975
PassMark - Single thread mark	3929	1501
PassMark - CPU mark	27632	3510
3DMark Fire Strike - Physics Score	7984
Geekbench 4 - Single Core		606
Geekbench 4 - Multi-Core		2380
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.084
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		63.217
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.376
CompuBench 1.5 Desktop - Video Composition (Frames/s)		1.858
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.196

Compare specifications (specs)

	Intel Core i5-12600K	Intel Core i7-975
Essentials
Architecture codename	Alder Lake	Bloomfield
Launch date	4 Nov 2021	June 2009
Launch price (MSRP)	$289 - 299	$476
Place in performance rating	325	2599
Processor Number	i5-12600K	i7-975
Series	12th Generation Intel Core i5 Processors	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Desktop	Desktop
Price now		$179.99
Value for money (0-100)		10.04
Performance
64 bit support
L1 cache	640 KB	64 KB (per core)
L2 cache	9.5 MB	256 KB (per core)
L3 cache	20 MB	8192 KB (shared)
Manufacturing process technology	Intel 7	45 nm
Maximum core temperature	100°C	67.9°C
Maximum frequency	4.90 GHz	3.60 GHz
Base frequency		3.33 GHz
Bus Speed		6.4 GT/s QPI
Die size		263 mm2
Front-side bus (FSB)		1333 MHz
Number of cores		4
Number of QPI Links		1
Number of threads		8
Transistor count		731 million
Unlocked
VID voltage range		0.800V-1.375V
Memory
Max memory channels	2	3
Maximum memory bandwidth	76.8 GB/s	25.6 GB/s
Maximum memory size	128 GB	24 GB
Supported memory types	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s	DDR3 800/1066
Graphics
Device ID	0x4680
Execution Units	32
Graphics base frequency	300 MHz
Graphics max dynamic frequency	1.45 GHz
Intel® Clear Video HD technology
Intel® Quick Sync Video
Processor graphics	Intel UHD Graphics 770
Graphics interfaces
Number of displays supported	4
Graphics image quality
Max resolution over DisplayPort	7680 x 4320 @ 60Hz
Max resolution over eDP	5120 x 3200 @ 120Hz
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Max number of CPUs in a configuration	1	1
Package Size	45.0 mm x 37.5 mm	42.5mm x 45.0mm
Sockets supported	FCLGA1700	FCLGA1366
Thermal Solution	PCG 2020A
Low Halogen Options Available
Thermal Design Power (TDP)		130 Watt
Peripherals
Max number of PCIe lanes	20
PCI Express revision	5.0 and 4.0
PCIe configurations	Up to 1x16+4, 2x8+4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Mode-based Execute Control (MBE)
Secure Boot
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Speed Shift technology
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)