reza, welcome to SF. I'm a AMD guy but all Intel i7's are either quad cores or six cores. All i5's are quads and all i3's are dual cores. But I've been wrong before and I'll be wrong again but I'm fairly confident on this.
My Computer
At a glance
Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
Computer type
PC/Desktop
Computer Manufacturer/Model Number
A blend of brains, brawn and dumb luck.
OS
Windows 7 Ultimate 64
CPU
i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 miniITX
Motherboard
MSI P67A-GD80 b3
Memory
32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133
Graphics Card(s)
XFX Radeon 7870 2GB DDR5
Sound Card
Sound Blaster Z Series Card
Monitor(s) Displays
(2) LG LED 23" 1920 x 1080 2ms Monitors via mini d-port
Screen Resolution
1680 X 1050 p
Hard Drives
Samsung 256 gb 830 SSD sata III
(1) 1 tb WD Black
(2) 1 tb Hitachi deskmates/sata II
(2) 1 tb WD green/sata II
(2) 3 tb Seagate Barracuda
(1) 120 gb OCZ Vertex SS
(1) Drobo 5N w/5 Seagate 3tb
PSU
EVGA modular 1000G2 80% gold rating & APC 1200 RS
Case
CoolerMaster Storm Styker
Cooling
7 case fans 140mm & 120mm, NZXT Kraken X60
Keyboard
(2) Logitech Illuminated Keyboards (1) usb (1) wireless
Mouse
Logitech G700 & T-BC21 - nano nx for the laptop
Internet Speed
Basic 120mbps down
Antivirus
Trend Micro Titanium Max Security & Malwarebytes Premium
Browser
Chrome and IE 10
Other Info
5 Noctua case fans + 3 Noctua in p/p on NZXT cooler
Integrated hot swap drive bays for 2.5" Drives
(2) Lite-on dvd/cd/Blu Ray optical 22X
Integrated fan controller and led on/off
HP Officejet Pro 8630 all-n-one
Hot-swappable 3.5" hard drive bay
Netgear Nighthawk router
Asus USB 3 & sata 6 PCIe card
Vantec IDE to sata adptr./Ultra sata adptr
Lenovo L420 i5 lappy with m sata
Drobo 5N advanced NAS
reza, welcome to SF. I'm a AMD guy but all Intel i7's are either quad cores or six cores. All i5's are quads and all i3's are dual cores. But I've been wrong before and I'll be wrong again but I'm fairly confident on this.
I'm a Intel guy.
I was thinking that Core i3's are dual cores.core i5's are either dual cores and core 2 quads and core i7's are either quad cores and six cores.
But in several sites have been written core i7 dual core hence I doubted but I think there are no core i7's dual cores
Yeah and I'm not ready to stake my life on this but I think I'd be willing to bet $100.00.....lol. I just bought a i3 lappy and it's dual core, I wanted to by a i5 but it was too expensive and my research I found that they are all quad cores and the i7 dream lappy was all quad with the desktop option of course being quad and the premium i7 being 6 cores.
My Computer
At a glance
Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
Computer type
PC/Desktop
Computer Manufacturer/Model Number
A blend of brains, brawn and dumb luck.
OS
Windows 7 Ultimate 64
CPU
i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 miniITX
Motherboard
MSI P67A-GD80 b3
Memory
32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133
Graphics Card(s)
XFX Radeon 7870 2GB DDR5
Sound Card
Sound Blaster Z Series Card
Monitor(s) Displays
(2) LG LED 23" 1920 x 1080 2ms Monitors via mini d-port
Screen Resolution
1680 X 1050 p
Hard Drives
Samsung 256 gb 830 SSD sata III
(1) 1 tb WD Black
(2) 1 tb Hitachi deskmates/sata II
(2) 1 tb WD green/sata II
(2) 3 tb Seagate Barracuda
(1) 120 gb OCZ Vertex SS
(1) Drobo 5N w/5 Seagate 3tb
PSU
EVGA modular 1000G2 80% gold rating & APC 1200 RS
Case
CoolerMaster Storm Styker
Cooling
7 case fans 140mm & 120mm, NZXT Kraken X60
Keyboard
(2) Logitech Illuminated Keyboards (1) usb (1) wireless
Mouse
Logitech G700 & T-BC21 - nano nx for the laptop
Internet Speed
Basic 120mbps down
Antivirus
Trend Micro Titanium Max Security & Malwarebytes Premium
Browser
Chrome and IE 10
Other Info
5 Noctua case fans + 3 Noctua in p/p on NZXT cooler
Integrated hot swap drive bays for 2.5" Drives
(2) Lite-on dvd/cd/Blu Ray optical 22X
Integrated fan controller and led on/off
HP Officejet Pro 8630 all-n-one
Hot-swappable 3.5" hard drive bay
Netgear Nighthawk router
Asus USB 3 & sata 6 PCIe card
Vantec IDE to sata adptr./Ultra sata adptr
Lenovo L420 i5 lappy with m sata
Drobo 5N advanced NAS
The first series of Arrandale mobile processors, the i7's were dual cores (see also: i7-6x0m) I'll send you my paypal account for the $100 In reality, those Core i7 duals were just extra cache versions of the i5 and generally binned for higher frequencies -- and not much else.
The Core 2 Duo and the Core i3/5/7 dual cores are fundamentally different because of their architecture. Core 2 Duo series are an older architecture, each singular processor will get less work done and use more power than each singular core from an i3/i5/i7 processor. There isn't actually an "i7 core 2 quad", what you probably meant was simply "i7 quad core".
So, to answer your question: an i7 dual core only existed in mobile form (Arrandale), and an i7 quad core existed on all desktops and later laptops (Sandy Bridge.)
My Computer
At a glance
Windows 7 Professional 64 EFICore i7-3930k C2 @ 4.5Ghz (125 strap x 36)8 x 4Gb Mushkin Redline @ 8-9-8-24 1T 1666MhzSapphire 7970 OC Edition @ 1200/1525
OS
Windows 7 Professional 64 EFI
CPU
Core i7-3930k C2 @ 4.5Ghz (125 strap x 36)
Motherboard
Intel DX79Si 4.30FW
Memory
8 x 4Gb Mushkin Redline @ 8-9-8-24 1T 1666Mhz
Graphics Card(s)
Sapphire 7970 OC Edition @ 1200/1525
Monitor(s) Displays
Dell U2711
Screen Resolution
2560x1440
Hard Drives
6 x OCZ Agility 3 240Gb SATA3 RAID0 via
Highpoint 2720SGL PCIE 2.0 8x SAS card
Thermaltake Theron (Highly Recommended) + Razer Imperator
Antivirus
MSE
Browser
IE, FF, WaterFox
Other Info
GT Extreme V2 Sim Racing Cockpit + 40" LCD and K/B Mouse stand ▼
Fanatec CSR Elite Wheel + Clubsport V1 Pedals + CSR shifter/7G-H ▼Saitek X52 Pro ▼ TrackIR 5 Pro
Buttkicker v2 Seat Rumbler with Dedicated 5.1 and Sub Woofer attached to frame ▼
=
Bloody Big Grin
Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
Computer type
PC/Desktop
Computer Manufacturer/Model Number
A blend of brains, brawn and dumb luck.
OS
Windows 7 Ultimate 64
CPU
i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 miniITX
Motherboard
MSI P67A-GD80 b3
Memory
32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133
Graphics Card(s)
XFX Radeon 7870 2GB DDR5
Sound Card
Sound Blaster Z Series Card
Monitor(s) Displays
(2) LG LED 23" 1920 x 1080 2ms Monitors via mini d-port
Screen Resolution
1680 X 1050 p
Hard Drives
Samsung 256 gb 830 SSD sata III
(1) 1 tb WD Black
(2) 1 tb Hitachi deskmates/sata II
(2) 1 tb WD green/sata II
(2) 3 tb Seagate Barracuda
(1) 120 gb OCZ Vertex SS
(1) Drobo 5N w/5 Seagate 3tb
PSU
EVGA modular 1000G2 80% gold rating & APC 1200 RS
Case
CoolerMaster Storm Styker
Cooling
7 case fans 140mm & 120mm, NZXT Kraken X60
Keyboard
(2) Logitech Illuminated Keyboards (1) usb (1) wireless
Mouse
Logitech G700 & T-BC21 - nano nx for the laptop
Internet Speed
Basic 120mbps down
Antivirus
Trend Micro Titanium Max Security & Malwarebytes Premium
Browser
Chrome and IE 10
Other Info
5 Noctua case fans + 3 Noctua in p/p on NZXT cooler
Integrated hot swap drive bays for 2.5" Drives
(2) Lite-on dvd/cd/Blu Ray optical 22X
Integrated fan controller and led on/off
HP Officejet Pro 8630 all-n-one
Hot-swappable 3.5" hard drive bay
Netgear Nighthawk router
Asus USB 3 & sata 6 PCIe card
Vantec IDE to sata adptr./Ultra sata adptr
Lenovo L420 i5 lappy with m sata
Drobo 5N advanced NAS