ATI Radeon HD 4870 X2 - AMD Back On Top

Article Index:   

Upon initial inspection, the Radeon HD 4870 X2 looks much like the Radeon HD 3870 X2, just with different PCB coloring. The card features a dark, black PCB with an industrial looking image of bolts and the Radeon logo emblazoned on the fan shroud. Flip the card over, and as you probably expect, the complexity of the design shows through.


Palit Radeon HD 4870 X2

We acquired cards from HIS and Palit for this article, both of which are pictured here. In terms of their features and specifications, the Palit and HIS Radeon HD 48070 X2 cards don't differ from ATI's reference design, save for a couple of decals and their accessory bundles.

As we’ve already mentioned, the Radeon HD 4870 X2 is powered by a pair of 750MHz RV770 GPUs, the same chips used on the Radeon HD 4870 and 4850. The two GPUs are linked together on the PCB through a PCI Express 2.0 fan-out switch from PLX. That switch takes the 16 PCI express lanes coming from the PEG slot and distributes them to both of the GPUs.

Like the Radeon HD 3870 X2, the new 4870 X2 has only a single CrossFire edge connector along the top of its PCB. It has only one because the other connection is already utilized on the PCB as an interconnect between the on-board GPUs.


HIS Radeon HD 4870 X2

Each of the GPUs on the Radeon HD 4870 X2 has its own 1GBMB frame buffer, for a total of 2GB of on-board memory. As you can see, the entire assembly is quite large and results in a 10.5” PCB – a little longer than a standard ATX motherboard. The cooler used on the card is much like previous offerings, but there are some noteworthy elements to the design. Each of the GPUs gets its own heatsink, as do the surrounding switch and RAM. The squirrel-cage type fan draws air in through a hole at the rear of the card, blows air across the heatsinks, and expels it from the system through vents in the mounting plate.

Like the other members of the Radeon HD 4800 series, the ATI Radeon HD 4870 X2 has a pair of dual-link DVI outputs, and an HD video output. One of the DVI outputs can be converted to an HDMI output with audio using an included adapter.

The Palit samples we received did not come in full retail trim, so we can't comment on the included bundle at this time.  The HIS card, however, was retail-ready and included a drive CD and manuals, a CrossFire bridge connector, a DVI-to-VGA adapter, a DVI-to-HDMI adapter, an S-Video to composite adapter, an HD component output dongle, a Molex-to-PCI Express power adapter and an HIS case badge.

Image gallery

Related content


warlord 6 years ago
Good to see Ati back squarely in the game. If you listen real close you can hear it. The sound of prices falling on Nvidia gear.
3vi1 6 years ago
I agree with warlord: This is great news for the consumer, no matter whether they're buying AMD or nVidia.

I was beginning to get afraid that nVidia would rest on their laurels and cut research in favor of profit, with the lead they've had on AMD/ATI as of late.
jtm55 6 years ago

 Hi All

This card will be going into a new build that I'm getting ready to start. Cherisse my lovely Wife needs a new machine, so I'm giving Her my present one & will be building a new Monster Rig that'll be able to address all of my needs.

Marco C 6 years ago
When that Radeon HD 4850 X2 hits, things are going to get even more interesting.
recoveringknowitall 6 years ago

The numbers speak for themselves... the X2 is 1 helluva GFX powerhouse!!!

Crisis Causer 6 years ago
Look at the power consumption with two of them. Yowza. :O
Dave_HH 6 years ago
Yeah, better make sure your PSU is up to the task but that goes with any high-end graphics setup these days. The 4850 X2 should be a lot more reasonable.
bob_on_the_cob 6 years ago
Great read. The price is a little out of my league. 4850 X2 is a little closer. Love to see some competition again. That's why I was able to get a 9600gt for $85.
Super Dave 6 years ago

[quote user="News"]ATI Radeon HD 4870 X2 - AMD Back On Top[/quote] 

First Nvidia, then Intel.Surprise

bob_on_the_cob 6 years ago

[quote user="Super Dave"]

[quote user="News"]ATI Radeon HD 4870 X2 - AMD Back On Top[/quote] 

First Nvidia, then Intel.Surprise


 Lets hope so. Intel has been known in the past to sit on new cpus.

Post a Comment
or Register to comment