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Reusing CPU from OEM

Skizzle
By Skizzle
in New Builds and Planning
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I'm currently planning on building a (mainly) gaming PC. At the moment I'm using a Dell Studio XPS 8100. It has an Intel Core i7 870 @2.93 with no overclocking.

I was wondering if I can save some money and use this CPU in my new build and expect some decent performance alongside a GTX 770 in games, or should I just leave it and buy a new CPU altogether?

 

Many thanks!

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The i7-870 will be perfectly fine for a GTX 770, don't worry about it.

 

Just google "i7 870 + gtx 770" and bunch of youtube videos will show up. Check what kind of performance those guys are getting.

 

PS: Welcome to the forums!

 
~ Specs bellow ~
 
 
Windows 10 Pro 64-bit [UEFI]
CPU: Intel i7-5820k Haswell-E @ 4.5-4.7Ghz (1.366-1.431V) | CPU COOLER: Corsair H110 280mm AIO w/ 2x Noctua NF-A14 IPPC-2000 IP67 | RAM: G.Skill Ripjaws 4 32Gb (8x4Gb) DDR4 @ 2666mhz CL15 | MOBO: MSI X99S Gaming 7 ATX | GPU: MSI GTX 1080 Gaming (flashed "X") @ 2138-2151Mhz (locked 1.093V) | PSU: Corsair HX850i 850W 80+ Platinum | SSD's: Samsung Pro 950 256Gb & Samsung Evo 850 500Gb | HDD: WD Black Series 6Tb + 3Tb | AUDIO: Realtek ALC1150 HD Audio | CASE: NZXT Phantom 530 | MONITOR: LG 34UC79G 34" 2560x1080p @144hz & BenQ XL2411Z 24" 1080p @144hz | SPEAKERS: Logitech Z-5450 Digital 5.1 Speaker System | HEADSET: Sennheiser GSP 350 | KEYBOARD: Corsair Strafe MX Cherry Red | MOUSE: Razer Deathadder Chroma | UPS: PowerWalker VI 2000 LCD
 
Mac Pro 2,1 (flashed) OS X 10.11.6 El Capitan 64-bit (NAS, Plex, HTTP Server, Game Servers) [R.I.P]
CPUs: 2x Intel Xeon X5365 @ 3.3Ghz (FSB OC) | RAM: OWC 16Gb (8x2Gb) ECC-FB DDR2 @ 1333mhz | GPU: AMD HD5870 (flashed) | HDDs: WD Black Series 3Tb, 2x WD Black Series 1Tb, WD Blue 2Tb | UPS: Fortron EP1000
 
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It's a fine CPU but very old. You're not going to find a new motherboard and RAM to go with it. So you're gonna keep the mobo and RAM you already have. Buying an SSD for it can help a bit but your old motherboard probably only supports sata-II and a good HDD can saturate that. The bulk of the speed-gain from an SSD would go to waste. So you're basically just swapping your GPU and probably PSU. Which will definitely blow new life into games but isn't a 'new build' per se. 

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It's a fine CPU but very old. You're not going to find a new motherboard and RAM to go with it. So you're gonna keep the mobo and RAM you already have. Buying an SSD for it can help a bit but your old motherboard probably only supports sata-II and a good HDD can saturate that. The bulk of the speed-gain from an SSD would go to waste. So you're basically just swapping your GPU and probably PSU. Which will definitely blow new life into games but isn't a 'new build' per se. 

 

Just one little thing to add: A good HDD still can't really saturate SATA II. An SSD would still make things a tad faster (up to 275mb/s speeds) but then again it would be bottlenecked compared to SATA III. If he can grab a cheap SSD though, it could make sense.

 

Also yes your best bet is to use the motherboard that came with the Dell or upgrade altogether.

 
~ Specs bellow ~
 
 
Windows 10 Pro 64-bit [UEFI]
CPU: Intel i7-5820k Haswell-E @ 4.5-4.7Ghz (1.366-1.431V) | CPU COOLER: Corsair H110 280mm AIO w/ 2x Noctua NF-A14 IPPC-2000 IP67 | RAM: G.Skill Ripjaws 4 32Gb (8x4Gb) DDR4 @ 2666mhz CL15 | MOBO: MSI X99S Gaming 7 ATX | GPU: MSI GTX 1080 Gaming (flashed "X") @ 2138-2151Mhz (locked 1.093V) | PSU: Corsair HX850i 850W 80+ Platinum | SSD's: Samsung Pro 950 256Gb & Samsung Evo 850 500Gb | HDD: WD Black Series 6Tb + 3Tb | AUDIO: Realtek ALC1150 HD Audio | CASE: NZXT Phantom 530 | MONITOR: LG 34UC79G 34" 2560x1080p @144hz & BenQ XL2411Z 24" 1080p @144hz | SPEAKERS: Logitech Z-5450 Digital 5.1 Speaker System | HEADSET: Sennheiser GSP 350 | KEYBOARD: Corsair Strafe MX Cherry Red | MOUSE: Razer Deathadder Chroma | UPS: PowerWalker VI 2000 LCD
 
Mac Pro 2,1 (flashed) OS X 10.11.6 El Capitan 64-bit (NAS, Plex, HTTP Server, Game Servers) [R.I.P]
CPUs: 2x Intel Xeon X5365 @ 3.3Ghz (FSB OC) | RAM: OWC 16Gb (8x2Gb) ECC-FB DDR2 @ 1333mhz | GPU: AMD HD5870 (flashed) | HDDs: WD Black Series 3Tb, 2x WD Black Series 1Tb, WD Blue 2Tb | UPS: Fortron EP1000
 
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