Sapphire AMD Radeon HD 4870 X2 2GB Review - AMD's Triumph
The Sapphire Radeon HD 4870 X2 2GB
As you might expect, not much has changed on the design of the HD 4870 X2 2GB card compared to the original reference we previewed last month.
Our testing sample was provided by Sapphire, one of AMD's biggest and most popular partners. Other than a sticker change the card is identical.
The Radeon HD 4870 X2 has two dual-link DVI outputs that support DVI-to-HDMI adapters as well as the S-Video and HDTV output between them.
The Radeon HD 4870 X2 card is powered by two PCIe connections - one 8-pin and one 6-pin. Both are REQUIRED for the card to work, no work-arounds here.
On the back of the card you'll find the single CrossFire connection that can be used to connect a second HD 4870 card of any kind, single GPU or dual-GPU.
Along the back of the card, under the heatsink, we find half of the 2GB of memory that pushes the HD 4870 X2.
Without that massive and heavy heatsink to cover it up, the HD 4870 X2 looks very familiar. There are two RV770-based GPUs on the board with a PCIe 2.0 bridge chip resting between them for data communications between each other and the rest of the PC.
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