Intel Core i7-875K vs Intel Core i7-950

Comparative analysis of Intel Core i7-875K and Intel Core i7-950 processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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, 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), 3DMark Fire Strike - Physics Score.

Intel Core i7-875K

Intel Core i7-950

Differences

Reasons to consider the Intel Core i7-875K

CPU is newer: launch date 10 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 8% higher clock speed: 3.60 GHz vs 3.33 GHz
Around 7% higher maximum core temperature: 72.7°C vs 67.9°C
Around 37% lower typical power consumption: 95 Watt vs 130 Watt
Around 6% better performance in Geekbench 4 - Single Core: 567 vs 535
Around 3% better performance in Geekbench 4 - Multi-Core: 2163 vs 2092

Specifications (specs)
Launch date	May 2010 vs June 2009
Unlocked	Unlocked vs Locked
Maximum frequency	3.60 GHz vs 3.33 GHz
Maximum core temperature	72.7°C vs 67.9°C
Thermal Design Power (TDP)	95 Watt vs 130 Watt
Benchmarks
Geekbench 4 - Single Core	567 vs 535
Geekbench 4 - Multi-Core	2163 vs 2092

Reasons to consider the Intel Core i7-950

Around 50% higher maximum memory size: 24 GB vs 16 GB
Around 2% better performance in PassMark - Single thread mark: 1379 vs 1352
Around 4% better performance in PassMark - CPU mark: 3213 vs 3090
Around 11% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 1.028 vs 0.925
Around 19% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 61.244 vs 51.608
Around 7% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.376 vs 0.35
Around 49% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 1.712 vs 1.146
Around 14% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 5.077 vs 4.459

Specifications (specs)
Maximum memory size	24 GB vs 16 GB
Benchmarks
PassMark - Single thread mark	1379 vs 1352
PassMark - CPU mark	3213 vs 3090
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.028 vs 0.925
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	61.244 vs 51.608
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.376 vs 0.35
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.712 vs 1.146
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	5.077 vs 4.459

Compare benchmarks

CPU 1: Intel Core i7-875K
CPU 2: Intel Core i7-950

PassMark - Single thread mark

CPU 1

CPU 2

1352

1379

PassMark - CPU mark

CPU 1

CPU 2

3090

3213

Geekbench 4 - Single Core

CPU 1

CPU 2

567

535

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2163

2092

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

0.925

1.028

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

51.608

61.244

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.35

0.376

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

1.146

1.712

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

4.459

5.077

Name	Intel Core i7-875K	Intel Core i7-950
PassMark - Single thread mark	1352	1379
PassMark - CPU mark	3090	3213
Geekbench 4 - Single Core	567	535
Geekbench 4 - Multi-Core	2163	2092
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.925	1.028
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	51.608	61.244
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.35	0.376
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.146	1.712
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.459	5.077
3DMark Fire Strike - Physics Score		2502

Compare specifications (specs)

	Intel Core i7-875K	Intel Core i7-950
Essentials
Architecture codename	Lynnfield	Bloomfield
Launch date	May 2010	June 2009
Launch price (MSRP)	$486	$290
Place in performance rating	2697	2683
Price now	$485.01	$329.99
Processor Number	i7-875K	i7-950
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	3.30	4.96
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.93 GHz	3.06 GHz
Bus Speed	2.5 GT/s DMI	4.8 GT/s QPI
Die size	296 mm2	263 mm2
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8192 KB (shared)	8192 KB (shared)
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	72.7°C	67.9°C
Maximum frequency	3.60 GHz	3.33 GHz
Number of cores	4	4
Number of threads	8	8
Transistor count	774 million	731 million
Unlocked
VID voltage range	0.6500V-1.4000V	0.800V-1.375V
Front-side bus (FSB)		1333 MHz
Number of QPI Links		1
Memory
Max memory channels	2	3
Maximum memory bandwidth	21 GB/s	25.6 GB/s
Maximum memory size	16 GB	24 GB
Supported memory types	DDR3 1066/1333	DDR3 800/1066
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	42.5mm x 45.0mm
Sockets supported	LGA1156	FCLGA1366
Thermal Design Power (TDP)	95 Watt	130 Watt
Peripherals
Max number of PCIe lanes	16
PCI Express revision	2.0
PCIe configurations	1x16, 2x8
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	36-bit	36-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)