Intel Core i7-920 vs Intel Core 2 Duo E4700

Comparative analysis of Intel Core i7-920 and Intel Core 2 Duo E4700 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, 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 i7-920

Intel Core 2 Duo E4700

Differences

Reasons to consider the Intel Core i7-920

CPU is newer: launch date 8 month(s) later
2 more cores, run more applications at once: 4 vs 2
Around 13% higher clock speed: 2.93 GHz vs 2.6 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
4x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 23% better performance in PassMark - Single thread mark: 1217 vs 990
3.1x better performance in PassMark - CPU mark: 2840 vs 908
Around 51% better performance in Geekbench 4 - Single Core: 469 vs 311
3.6x better performance in Geekbench 4 - Multi-Core: 1855 vs 512

Specifications (specs)
Launch date	November 2008 vs March 2008
Number of cores	4 vs 2
Maximum frequency	2.93 GHz vs 2.6 GHz
Manufacturing process technology	45 nm vs 65 nm
L1 cache	64 KB (per core) vs 64 KB
Benchmarks
PassMark - Single thread mark	1217 vs 990
PassMark - CPU mark	2840 vs 908
Geekbench 4 - Single Core	469 vs 311
Geekbench 4 - Multi-Core	1855 vs 512

Reasons to consider the Intel Core 2 Duo E4700

Around 8% higher maximum core temperature: 73.3°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

Maximum core temperature	73.3°C vs 67.9°C
L2 cache	2048 KB vs 256 KB (per core)
Thermal Design Power (TDP)	65 Watt vs 130 Watt

Compare benchmarks

CPU 1: Intel Core i7-920
CPU 2: Intel Core 2 Duo E4700

PassMark - Single thread mark

CPU 1

CPU 2

1217

990

PassMark - CPU mark

CPU 1

CPU 2

2840

908

Geekbench 4 - Single Core

CPU 1

CPU 2

469

311

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1855

512

Name	Intel Core i7-920	Intel Core 2 Duo E4700
PassMark - Single thread mark	1217	990
PassMark - CPU mark	2840	908
Geekbench 4 - Single Core	469	311
Geekbench 4 - Multi-Core	1855	512
3DMark Fire Strike - Physics Score	2227
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.873
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	50.388
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.3
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.595
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4

Compare specifications (specs)

	Intel Core i7-920	Intel Core 2 Duo E4700
Essentials
Architecture codename	Bloomfield	Conroe
Launch date	November 2008	March 2008
Launch price (MSRP)	$340
Place in performance rating	2767	2756
Price now	$174	$26.99
Processor Number	i7-920	E4700
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	8.34	16.19
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.66 GHz	2.60 GHz
Bus Speed	4.8 GT/s QPI	800 MHz FSB
Die size	263 mm2	111 mm2
Front-side bus (FSB)	1333 MHz
L1 cache	64 KB (per core)	64 KB
L2 cache	256 KB (per core)	2048 KB
L3 cache	8192 KB (shared)
Manufacturing process technology	45 nm	65 nm
Maximum core temperature	67.9°C	73.3°C
Maximum frequency	2.93 GHz	2.6 GHz
Number of cores	4	2
Number of QPI Links	1
Number of threads	8
Transistor count	731 million	167 million
VID voltage range	0.800V-1.375V	0.8500V-1.5V
Memory
Max memory channels	3
Maximum memory bandwidth	25.6 GB/s
Maximum memory size	24 GB
Supported memory types	DDR3 800/1066	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	42.5mm x 45.0mm	37.5mm x 37.5mm
Sockets supported	FCLGA1366	PLGA775
Thermal Design Power (TDP)	130 Watt	65 Watt
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 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	36-bit
Thermal Monitoring
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)