ATI Radeon HD 5850 Extreme 1024MB GDDR5 PCI-Express Graphics Card **OcUK Exclusive**

  • Core: 725MHz
  • Memory: 1024MB 4000MHz GDDR5
  • Stream Processors: 1440
  • DirectX 11 Support
  • ATI CrossFireX Ready
  • ATI Eyefinity
  • ATI Stream
  • ATI Avivo HD
  • 2 Year Warranty.
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Stock Code: GX-259-SP

EAN: 00000000

MPN: 11162-15-20G

Manufacturer: Sapphire

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Product information:

ATI Radeon HD 5850 Extreme 1024MB GDDR5 PCI-Express Graphics Card **OcUK Exclusive**

Prepare to experience a riveting high-definition gaming experience with the ATI Radeon HD 5800 Series graphics processors. Expand your visual real estate across up to three displays and get lost in the action with revolutionary ATI Eyefinity Technology. Using ATI Stream technology, accelerate even the most demanding applications and do more than ever with your PC. The first to deliver full support for Microsoft DirectX 11, these GPUs enable rich, realistic visuals and explosive HD gaming performance so you can dominate the competition.

- Core Clock: 725MHz
- Memory: 1024MB GDDR5
- Memory Clock: 4000MHz (Effective)
- Memory Bandwidth: 128.0GB/s
- Processing Cores: 1440
- Bus Type: PCI-Express 2.1
- Display Connectors: 1 Dual-Link DVI-I, 1 HDMI & 1 DisplayPort
- HDCP Capable
- DirectX 11 Support
- OpenGL 3.2 Support
- ATI CrossFireX Ready
- ATI Eyefinity Technology
- ATI Avivo HD
- ATI Stream Technology
- 2yr Warranty

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Customer review

88% (30)
12% (4)
0% (0)
0% (0)
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Star Rating

Average customer rating

(from 34 customer reviews)
All Time (34)

I got this the day it came out.

Not missed a single beet for the last year. Amazed how i keep buying new games and turning everything to max.

Latest game with 8AA rest ultra max Dx11 was F1 2011. Average fps 41. I am still on an old Quad Core CPU 3.0Ghz

Craig 2011-10-05


Hi i thought i would give you guys an update from when i bought this card the other week... So here go`s
This card runs cool and stable on everything i chucked at it even with all the candy turned on so i thought id`e give the star back 5* all the way
Thanks ATI and thanks again Overclockers
Great card

Colin 2011-08-09

Extremely Capable

Bought one a while ago at

Anonymous 2011-07-30

Brilliant Card

Can play any game you could throw at it.

This card can be overclocked to 825Mhz core and 1200Mhz memory with Trixx on stock volts (1.088v)

The auto fan setting keeps the card very cool regardless.

OCCT stress-test with error-check reports no errors. 100% stable :)

Edward 2011-07-24

Cheap n Cheerful

Installed without a glitch and runs great and at this price cant be beaten great job overclockers as usual

the only thing i noticed while handling the card "and this is why only 4 stars awarded" was no heatsinks on the memory chips?

surely a card running ddr5 needs heatsinks on the chips... just food for thought and still worth every penny thanks again

colin 2011-07-12

Just the Job

Hi everyone

I managed to buy one of these at

Churchie 2011-06-29


Great Card, can run FFXIV at 1920X1080 everything on High with 4xAA, very quiet even though it's in a MicroATX case. Only given it a 4 because OC have dropped the price since I bought mine yesterday.

Ben 2011-06-29


Amazingly powerful card, runs everything I've thrown at it at max. I usually drop the AA down to 8x if 16x is available just so I get a consistent 50-60FPS. Extremely impressed, for the price it's amazing.

Tom Huxley 2011-06-29

Blown Away

I wanted a card to replace 2 Nvidia 7800gtx cards SLI. They were a big waste of money, no power and poor shadow effects. I'm running an aging Athlon x2 system and I wasn't sure a card this fast would work well, there might have been bottlenecks elsewhere in the system. As it is all my current games now run 1900x1200 with decent levels of AA and good FPS. In short I have been blown away by the performance of this card. Its worth reading some external reviews to see what tricks this card is packing.

Ian 2011-06-28


This card is so good tested with GTA IV and its way better than my old 5770 . just shame you dont get a free game lol but so worth the price

Arran 2011-06-25


got one of these from here when was on offer at

turbo 2011-06-24

Very Good

Perfect card! Bought to replace my Nvidia 8800GT. Quiet and fast and price

Damien May 2011-06-18


Awesome service by the OCs, received the card in the morning, two working days after ordering (ordered kinda late)...
The Card itself is great, runs for example Fallout 3 on 1920x1080 with everything else maxed out completelly, and I'm pretty sure that a new game, such as The Witcher 2 will run as good as F3...

Maciej 2011-06-09

Fast and silent!

I bought this card to Crossfire with my HIS HD5830 (reference model) and the first thing I noticed was the size difference - it's quite a bit shorter. Second thing I noticed was that in comparison to the reference model 5830 it's extremely quiet - the larger fan really does its job well.

And I slapped on an overclock of 820/1250 straight away, haven't tried to go any higher but I'm sure it will.

Great card for really no money at all for what it is.

Christian 2011-06-08

So Glad I Did

Got two of these to Cossfire, to replace my ageing 4780's. All fps short commings dismissed. Love these cards, got them at 8001100 overclocked in ccc. No need for Trixx utillity. Thanks OCUK again for the best price by far. I love u guys.

Lee 2011-06-03

Amazing card

I recently purchased this card and I'm glad i did. Upgraded from an 8800GT and this card runs twice as fast at stock speeds. Overclocked mine using the latest TRIXX to 900/1200. I would highly recommend you buy one yourself. Great service from Overclockers as usual.

Andy 2011-06-02

Pleased and Amazed

I like flight sims, but the latest Cliffs of Dover was too much for my system. I knew I needed a better graphics card, but they are all a bit expensive for a pensioner! I purchased the HD5850 with more than a little trepidation. I was wrong. The overclocking aspects I might try out in the future, but for now I'm up in the clouds . . .
Highly recommended.

Alastair 2011-06-02

1ghz OC

I'm impressed with this card, it is 3x as fast as my 8800GT in Unigine heaven benchmark. With the sapphire Trixx utility it painlessly overclocked to 1ghz core & 5000 memory speed at 1.2v

Michael 2011-05-27

Highly recomended

Bought this to replace a GTX 280 nvidia card that died on me. 2/2 failure for me on nvidia cards, my old x800 ati card is still running strong, anyway...

Runs alot cooler and ALOT quieter than the nvidia. And whilst im pretty sure im bottlenecked by my processor (q6600) performance is top notch. Really nice card you cant go wrong for the money

Chris 2011-05-26

Nothing better at this Price

Don't get put off by this being an older gen card. This Saphire 5850 is a re-released revamped 5850 and will eat a GF460 OC for breakfast. Over-clocked to 900/1200 will be nearer the 560ti. (I got 840/1150 @48C with no volt mod just using AutoTune in CCC) Fast, Very quiet and fits in smaller cases & runs fine on 450w psu, What more could you want? No driver problems if you install using the disc supplied with express set up (Even though I still had Nvidia Drivers on my system from my last card) Then go to Cat Control Center Information and update drivers from there. You can now also over-clock from there as well using the "performance" overdrive tab.
**Bargain Of the Century**

Martin White 2011-05-25

Super value

Superb card: fast, quiet and unbeatable price.

Mine oc's to 900/1200 with the latest Trixx, as do many others. At this speed it plays Crysis at very high, 1400x900 happily, though it was a little bottlenecked by my C2D being at 3.2ghz.

Highly recommended if you're on a budget!!

Stef 2011-05-16

Great Value

This is a great card for the money, check out the updated Extreme version reviews online and you'll find it outperforms the 6850 and 6790 even though its technically an older generation.

The card is nice and quiet, the 2 x 6 pin connectors are on the rear end of the card towards the drive bays (my 4870 had them on the side) but still plenty of room in my Antec 300 as the card isn't particular long.

If you're on a budget this is a great buy, I was tempted to splash out extra on a more powerful card but Borderlands, Crysis and BF:BC2 all play great at 1680x1050 so I'll be sticking with this for a while.

Dean 2011-05-06

love it

so damn good go buy one now plays everything full settings i upgraded from a 4870 and its way better runs cool and silent

kombart 2011-05-04

good price poor overclocker

I bought this card to crossfire with my older Asus 5850.

It runs a lot cooler and quieter than my older card but unfortunately can't keep up with the Asus in the overclocking stakes with a max oc of 800mhz.

It is a very good card for the price although there is no crossfire bridge in the box and there is only one connector for crossfire on the card.

As always perfect service from Overclockers I would recomend this card to anyone who is looking to save som money on a fast card that is capable of playing pretty much anything.

Rob Mitchell 2011-05-03

Great price, very quiet card

I was in the process of upgrading my graphics card and I was going for the 6850 until I noticed this on Overclockers. I thought something wasn't right at this price(

Simon V 2011-04-15

Good card

Runs quieter as my Twin frozr 5850 and only slightly warmer. No voltage control it seems, but mine can manage 790/1200 at stock volts which is ok. Good card for the price.

Blake 2011-04-15

Great card for the money

If you want more bang for your buck then it's hard to look past this card, stonking value for money.

Gary 2011-04-14


took me a while to get it working (psu problem)

but once i have it working its amazing blows my old 4850 out the water. getting about 34fps on crysis warhead max out at 1920*1080

dosnt overclock as well as i hoped due to the lack of voltage tweaking. i manged 820/1180 stable (but running at 750/1050 other wise cpu bottlenecks)

a must buy at just >

Andy 2011-04-13

Defo recommend

Got this card the other day . Really quiet and mint graphics . oc uk 5 stars on delivery very fast ;-)

gaz 2011-04-12


Bought this card a few days ago at

Adam Calvert 2011-04-08

Great card

This card has amazing performance and is very quiet. The only reason I did not give 5 stars was because this card is not a very good overclocker. There is no voltage control and it goes unstable at 850 mhz on the core. I have mine stable at 800/1175. This card was also delivered on time and I got it for

Owen 2011-04-07

good card

good card proper silent and fast

richard john 2011-04-07

Best Bang for buck in this price range a

Bought one of these to replace an aging 8800 gtx, running crysis 2 on ultra at 1080p.
Instantly overclocked to 840/1300 as well for a little extra performance

Harry Mac 2011-04-05

Great Price for a good card

just installed in my rig, a lot quieter than my old 5850.
The card comes on a custom PCB with a sapphire cooler similar to the 6850/6870
have not tried to overclock yet but i have high hopes

Tom 2011-04-05

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