Intel Pentium E5700 vs Intel Core i7-975

Comparative analysis of Intel Pentium E5700 and Intel Core i7-975 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, 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).

Intel Pentium E5700

Intel Core i7-975

Differences

Reasons to consider the Intel Pentium E5700

CPU is newer: launch date 1 year(s) 2 month(s) later
Around 9% higher maximum core temperature: 74.1°C vs 67.9°C
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x lower typical power consumption: 65 Watt vs 130 Watt

Launch date	August 2010 vs June 2009
Maximum core temperature	74.1°C vs 67.9°C
L2 cache	2048 KB (shared) vs 256 KB (per core)
Thermal Design Power (TDP)	65 Watt vs 130 Watt

Reasons to consider the Intel Core i7-975

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more cores, run more applications at once: 4 vs 2
Around 20% higher clock speed: 3.60 GHz vs 3 GHz
2x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 25% better performance in PassMark - Single thread mark: 1499 vs 1197
3.2x better performance in PassMark - CPU mark: 3493 vs 1084
Around 77% better performance in Geekbench 4 - Single Core: 606 vs 343
4.1x better performance in Geekbench 4 - Multi-Core: 2380 vs 583

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	4 vs 2
Maximum frequency	3.60 GHz vs 3 GHz
L1 cache	64 KB (per core) vs 64 KB (per core)
Benchmarks
PassMark - Single thread mark	1499 vs 1197
PassMark - CPU mark	3493 vs 1084
Geekbench 4 - Single Core	606 vs 343
Geekbench 4 - Multi-Core	2380 vs 583

Compare benchmarks

CPU 1: Intel Pentium E5700
CPU 2: Intel Core i7-975

PassMark - Single thread mark

CPU 1

CPU 2

1197

1499

PassMark - CPU mark

CPU 1

CPU 2

1084

3493

Geekbench 4 - Single Core

CPU 1

CPU 2

343

606

Geekbench 4 - Multi-Core

CPU 1

CPU 2

583

2380

Name	Intel Pentium E5700	Intel Core i7-975
PassMark - Single thread mark	1197	1499
PassMark - CPU mark	1084	3493
Geekbench 4 - Single Core	343	606
Geekbench 4 - Multi-Core	583	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 Pentium E5700	Intel Core i7-975
Essentials
Architecture codename	Wolfdale	Bloomfield
Launch date	August 2010	June 2009
Launch price (MSRP)	$110	$476
Place in performance rating	2585	2589
Price now	$14.99	$179.99
Processor Number	E5700	i7-975
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	34.17	10.04
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.00 GHz	3.33 GHz
Bus Speed	800 MHz FSB	6.4 GT/s QPI
Die size	82 mm2	263 mm2
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	2048 KB (shared)	256 KB (per core)
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	74.1°C	67.9°C
Maximum frequency	3 GHz	3.60 GHz
Number of cores	2	4
Transistor count	228 million	731 million
VID voltage range	0.8500V-1.3625V	0.800V-1.375V
Front-side bus (FSB)		1333 MHz
L3 cache		8192 KB (shared)
Number of QPI Links		1
Number of threads		8
Unlocked
Memory
Supported memory types	DDR1, DDR2, DDR3	DDR3 800/1066
Max memory channels		3
Maximum memory bandwidth		25.6 GB/s
Maximum memory size		24 GB
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	LGA775	FCLGA1366
Thermal Design Power (TDP)	65 Watt	130 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Instruction set extensions		Intel® SSE4.2
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)