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R9 270 or R9 270x for cf with HD7870oc

GloomySquiky
By GloomySquiky
in Graphics Cards
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Posted

Hey guys,

I would like you to help me figuring out what's the best choice to do a crossfire with my sapphire HD7870 oc edition between an R9 270 or an R9 270x... and if possible from which brand....

thanks !

GPU : R9 290 Proc : AMD Phenom II X4 955 (3.6 Ghz) Mobo : ASrock 970 extreme 3 PSU : corsair GS 700 HDD : 1250Go SSD : vertex 4 128 Go Case : Fractal Design Define S RAM : 8Go Fan : CM Hyper 212 evo Headset : Steelseries Siberia V2  Mouse : Roccat Savu Keyboard : CMstorm quickfire TK Screen : LG flatron E2240s + Acer Predator 144Hz/Freesync

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you can crossfire the R9 270 but its not officially supported or recommended by AMD. your best choice would be

1: Do some digging an find a HD7870 for sale

2: Get a R9 270 - 270X by themselves, and/or get 2 and crossfire them. 

Ryze of the Phoenix: 
CPU:      AMD Ryzen 5 3600 @ 4.15GHz
Ram:      64GB Corsair Vengeance LPX DDR4 @ 3200Mhz (Samsung B-Die & Nanya Technology)
GPU:      MSI RTX 3060 12GB Aero ITX
Storage: Crucial P3 1TB NVMe Gen 4 SSD, 1TB Crucial MX500, Spinning Rust (7TB Internal, 16TB External - All in-use),
PSU:      Cooler Master MWE Gold 750w V2 PSU (Thanks LTT PSU Tier List)
Cooler:   BeQuite! Prue Rock 2 Black Edition
Case:     ThermalTake Versa J22 TG

Passmark 10 Score: 6096.4         CPU-z Score: 4189 MT         Unigine Valley (DX11 @1080p Ultra): 5145         CryEngine Neon Noir (1080p Ultra): 9579

Audio Setup:                  Scarlett 2i2, AudioTechnica AT2020 XLR, Mackie CR3 Monitors, Sennheiser HD559 headphones, HyperX Cloud II Headset, KZ ES4 IEM (Cyan)

Laptop:                            MacBook Pro 2017 (Intel i5 7360U, 8GB DDR3, 128GB SSD, 2x Thunderbolt 3 Ports - No Touch Bar) Catalina & Boot Camp Win10 Pro

Primary Phone:               Xiaomi Mi 11T Pro 5G 256GB (Snapdragon 888)

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  • Author

It's working so I want to do it.... Please just answer my question... 

GPU : R9 290 Proc : AMD Phenom II X4 955 (3.6 Ghz) Mobo : ASrock 970 extreme 3 PSU : corsair GS 700 HDD : 1250Go SSD : vertex 4 128 Go Case : Fractal Design Define S RAM : 8Go Fan : CM Hyper 212 evo Headset : Steelseries Siberia V2  Mouse : Roccat Savu Keyboard : CMstorm quickfire TK Screen : LG flatron E2240s + Acer Predator 144Hz/Freesync

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If its working and you've made sure it's stable (EDIT: and you want to) then by all means do it. But its at your own risk. If you decide to do it and something breaks, its your fault, I'm not responsible. (EDIT: I did mention its not recommended by AMD)

And by stable testing, I don't mean play some games, Run Furmark or MSI Kombustor for at least 16 - 24 hours, (i also recommend monitoring the cards in MSI Afterburner) If you see any trouble such as artifacts or glitchiness, then its not stable and i would recommend stopping and remove one of the cards.

Ryze of the Phoenix: 
CPU:      AMD Ryzen 5 3600 @ 4.15GHz
Ram:      64GB Corsair Vengeance LPX DDR4 @ 3200Mhz (Samsung B-Die & Nanya Technology)
GPU:      MSI RTX 3060 12GB Aero ITX
Storage: Crucial P3 1TB NVMe Gen 4 SSD, 1TB Crucial MX500, Spinning Rust (7TB Internal, 16TB External - All in-use),
PSU:      Cooler Master MWE Gold 750w V2 PSU (Thanks LTT PSU Tier List)
Cooler:   BeQuite! Prue Rock 2 Black Edition
Case:     ThermalTake Versa J22 TG

Passmark 10 Score: 6096.4         CPU-z Score: 4189 MT         Unigine Valley (DX11 @1080p Ultra): 5145         CryEngine Neon Noir (1080p Ultra): 9579

Audio Setup:                  Scarlett 2i2, AudioTechnica AT2020 XLR, Mackie CR3 Monitors, Sennheiser HD559 headphones, HyperX Cloud II Headset, KZ ES4 IEM (Cyan)

Laptop:                            MacBook Pro 2017 (Intel i5 7360U, 8GB DDR3, 128GB SSD, 2x Thunderbolt 3 Ports - No Touch Bar) Catalina & Boot Camp Win10 Pro

Primary Phone:               Xiaomi Mi 11T Pro 5G 256GB (Snapdragon 888)

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Ok it's at my own risk and if it's not stable i'll remove one of the 2 cards... Now can you answer my question ? 

GPU : R9 290 Proc : AMD Phenom II X4 955 (3.6 Ghz) Mobo : ASrock 970 extreme 3 PSU : corsair GS 700 HDD : 1250Go SSD : vertex 4 128 Go Case : Fractal Design Define S RAM : 8Go Fan : CM Hyper 212 evo Headset : Steelseries Siberia V2  Mouse : Roccat Savu Keyboard : CMstorm quickfire TK Screen : LG flatron E2240s + Acer Predator 144Hz/Freesync

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the r9 270 and r9 270x are practically the same card, it will work on either (the 270 has a lowered clock i believe) Brand? the one that you thinks looks best. Sapphire is really good, but so are others

Beneath this mask there is more than flesh. Beneath this mask there is an idea, Mr. Creedy, and ideas are bulletproof.

As I get older I get angrier more cynical, meaner. I feel some warning posts coming. I feel a ban coming. I was warned.

CPU-i5 2400 GPU-Sapphire Radeon HD 7970 OC Mobo-H67MA-D2H-B3 Ram-G.Skill Ripjaws 8gb 1333mhz Case-Fractal Define R4 PSU-Corsair CX750 Storage-Samsung EVO 250gb, 1tb WD Black,Hitachi 1tb Other stuff-Corsair K90, M90 Cooling-3x 140mm Fractal fans Sound-Sennheiser HD438 headphones
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I would add a 270x since it can be overclocked pretty far and is a beast of a card for 1080p for gaming. Couple that with your 7870 since they are near enough the same, you should be doing pretty good. you might even be able to drive a monitor higher than 1080p such as 1440p or 1600p (only one though)

Ryze of the Phoenix: 
CPU:      AMD Ryzen 5 3600 @ 4.15GHz
Ram:      64GB Corsair Vengeance LPX DDR4 @ 3200Mhz (Samsung B-Die & Nanya Technology)
GPU:      MSI RTX 3060 12GB Aero ITX
Storage: Crucial P3 1TB NVMe Gen 4 SSD, 1TB Crucial MX500, Spinning Rust (7TB Internal, 16TB External - All in-use),
PSU:      Cooler Master MWE Gold 750w V2 PSU (Thanks LTT PSU Tier List)
Cooler:   BeQuite! Prue Rock 2 Black Edition
Case:     ThermalTake Versa J22 TG

Passmark 10 Score: 6096.4         CPU-z Score: 4189 MT         Unigine Valley (DX11 @1080p Ultra): 5145         CryEngine Neon Noir (1080p Ultra): 9579

Audio Setup:                  Scarlett 2i2, AudioTechnica AT2020 XLR, Mackie CR3 Monitors, Sennheiser HD559 headphones, HyperX Cloud II Headset, KZ ES4 IEM (Cyan)

Laptop:                            MacBook Pro 2017 (Intel i5 7360U, 8GB DDR3, 128GB SSD, 2x Thunderbolt 3 Ports - No Touch Bar) Catalina & Boot Camp Win10 Pro

Primary Phone:               Xiaomi Mi 11T Pro 5G 256GB (Snapdragon 888)

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Thanks a lot for your answers :) 

GPU : R9 290 Proc : AMD Phenom II X4 955 (3.6 Ghz) Mobo : ASrock 970 extreme 3 PSU : corsair GS 700 HDD : 1250Go SSD : vertex 4 128 Go Case : Fractal Design Define S RAM : 8Go Fan : CM Hyper 212 evo Headset : Steelseries Siberia V2  Mouse : Roccat Savu Keyboard : CMstorm quickfire TK Screen : LG flatron E2240s + Acer Predator 144Hz/Freesync

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  • 4 months later...
Posted

how well did this work as ive have got a sapphire hd 7870 ghz edition and i dont want to pay 2x the amount i payed for my existing card for another of the same spec. so dont know weather to get the r9 270x 2gb or 4gb version any help would be helpful.  :)

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270 non x when in crossfire the 270 will downclock to the speed of the 7870 anyways so save some money and get a 270 non x

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