ATI Mangles the Competition: 8 Hot New Video Cards Reviewed
We burn up kilowatts testing eight hot new videocards to see why the Radeon reigns supreme
AMD’s recent release of its RV870 GPU line makes the company the undisputed graphics performance leader. The Radeon HD 5870 is the fastest single-GPU graphics card on the market currently. But at roughly $380, it’s not inexpensive, so AMD has also rolled out the Radeon HD 5850, 5770, and 5750 cards. All are DirectX 11–capable, at lower price points than the flagship HD 5870.
The HD 5850 uses the same RV870 GPU as the 5870, but with a couple of functional units disabled. Priced at around $260, the 5850 occupies the lower tier of the high-end cards. The recently released 5770/5750 cards use a different chip. Based on the same DirectX 11 architecture as their big brothers, the 5770/5750 are built with 1.04 billion transistors—just slightly more than the 956 million used in the previous-generation Radeon HD 4870/4890 products. Contrast these numbers with the 2.15 billion transistors in the Radeon HD 5870.
Current prices for 5770s are roughly the same as older 4870s, around $150–$160. So the 5770 is firmly positioned as a midrange graphics card.
We put eight cards to the test, from six companies: three Radeon HD 5870s, three HD 5850s, one HD 5770, and a factory-overclocked Nvidia GTX 260 from Gigabyte, our token Nvidia card in the mix. We compared each card against the fastest previous single-GPU champ, the EVGA 285 GTX SSC. Our test bed consisted of a 3.3GHz Intel Core i7-975 on an Asus Rampage Extreme II X58 motherboard, 6GB Corsair DDR3/1600 at 1,333MHz, a Seagate 7200.12 1TB hard drive, a Lite-On DVD+/-RW optical drive, a Corsair 850W PSU, and the 64-bit version of Windows 7.
At the start of any new GPU’s cycle, board vendors adhere to the reference design, making performance virtually identical among competing cards. This changes as OEMs tweak their designs. Still, as you’ll see from our reviews, differences exist in terms of warranty, software bundle, availability, and price.
At a Glance: ATI's New Line of GPUs
ATI Radeon GPUs Model | HD 4870
| HD 5770
| HD 5750
| HD 5850
| HD 5870
|
Stream Processors
| 800
| 800
| 720
| 1440
| 1600
|
Core Clock
| 750MHz
| 850MHz
| 700MHz
| 725MHz
| 850MHz
|
Memory Clock
| 900MHz
| 1.2GHz
| 700MHz | 1GHz
| 1.2GHz
|
Memory Width
| 256
| 128
| 128
| 256
| 256
|
Max Power Use
| 150W
| 108W
| 86W
| 151W
| 188W |
Price
| $150
| $160
| $130
| $260
| $380
|
All these have 1GB of memory; there’s also a 512MB version of the 5750 available, at around $110.
The Reviews (Click the picture or headline for the full review and benchmarks, and verdict)

All of the Radeon HD 5870s reviewed here are essentially identical—they’re the fastest single-GPU graphics cards you can buy currently. Out of the box, you get a typical one-year limited warranty. But if you register XFX’s product online. within 30 days of purchase, the warranty lasts for “the duration of your life.” Not a bad deal, assuming the company is around that long.

HIS is based in Hong Kong, but its cards are readily available in U.S. outlets. They often cost slightly less than the competition, but that’s not the case with the company’s Radeon HD 5870, which is priced the same as its competitors. When we first unpacked the card, we thought it was the lesser HD 5850 model, due to its relatively compact packaging.

As with all Radeon HD 5870s, Sapphire’s version offers superlative performance, making it one of the fastest single-GPU cards available today. At its core is AMD’s 2.15 billion transistor Cypress chip, coupled with 1GB of 1,200MHz GDDR5 memory. Two DVI, one HDMI, and one DisplayPort connection allow for flexible monitor attachment.
More reviews on the next page!