Introduction
In October 2010, AMD released their Radeon HD 6850 and HD 6870 which are based on the Barts GPU core. At its time it was an outstanding choice for the $250 segment, but NVIDIA countered this offer with their GeForce GTX 560 Ti which quickly took over that market.
Now AMD board partners are coming out with feature-rich, highly overclocked versions of the HD 6870 that try to increase the model's competitiveness.
PowerColor has a long history of creating overclocked boards with their PCS, PCS+ and PCS++ Series. Today we have on our testbench the PowerColor HD 6870 PCS++ which comes with a revamped board design and runs at the highest clock speeds available on any HD 6870 today. Pricing seems reasonable too, with just a small price increase over the reference design HD 6870 cards.
| GeForce GTX 460 | GeForce GTX 460 | Radeon HD 6850 | Radeon HD 5850 | GeForce GTX 470 | Radeon HD 6870 | PowerColor HD 6870 PCS++ | GeForce GTX 560 Ti | Radeon HD 5870 | GeForce GTX 570 |
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| Shader units | 336 | 336 | 960 | 1440 | 448 | 1120 | 1120 | 384 | 1600 | 480 |
|---|
| ROPs | 24 | 32 | 32 | 32 | 40 | 32 | 32 | 32 | 32 | 40 |
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| GPU | GF104 | GF104 | Barts | Cypress | GF100 | Barts | Barts | GF114 | Cypress | GF110 |
|---|
| Transistors | 1950M | 1950M | 1700M | 2154M | 3200M | 1700M | 1700M | 1950M | 2154M | 3000M |
|---|
| Memory Size | 768 MB | 1024 MB | 1024 MB | 1024 MB | 1280 MB | 1024 MB | 1024 MB | 1024 MB | 1024 MB | 1280 MB |
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| Memory Bus Width | 192 bit | 256 bit | 256 bit | 256 bit | 320 bit | 256 bit | 256 bit | 256 bit | 256 bit | 320 bit |
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| Core Clock | 675 MHz | 675 MHz | 775 MHz | 725 MHz | 607 MHz | 900 MHz | 975 MHz | 823 MHz | 850 MHz | 732 MHz |
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| Memory Clock | 900 MHz | 900 MHz | 1000 MHz | 1000 MHz | 837 MHz | 1050 MHz | 1150 MHz | 1002 MHz | 1200 MHz | 950 MHz |
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| Price | $150 | $180 | $180 | $200 | $250 | $220 | $230 | $250 | $270 | $350 |
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Packaging
Contents
You will receive:
- Graphics card
- Driver CD + Documentation
- Mini-DisplayPort to DisplayPort Adapter
- DVI to Analog VGA Adapter
- CrossFire Bridge
The Card
PowerColor's HD 6870 PCS++ uses the same cooler as the PCS+ version, with the exception that the left side of this "racecar lookalike" cooler is painted in a brighter orange.
The card requires two slots in your system.
The card has two DVI ports, one full size HDMI port and two mini-DisplayPort outputs. AMD's display output logic is clearly superior to what NVIDIA has to offer at this time. Vendors are free to combine six TMDS links into any output configuration they want (dual-link DVI consuming two links) - and use them all at the same time. AMD has also introduced DisplayPort 1.2 support with their new cards which allows the use of a DisplayPort hub to connect multiple monitors, or daisy chain them together.
An HDMI sound device is also included in the GPU. The HDMI interface is HDMI 1.4a compatible which includes Dolby TrueHD, DTS-HD, AC-3, DTS and up to 7.1 channel audio with 192 kHz / 24-bit output. The new revision also brings support for Blu-ray 3D movies which will become important later this year when we will see first Blu-ray 3D titles shipping.
Interesting! This is the first HD 68xx card with two CrossFire fingers that I've seen. Normally HD 6850 and HD 6870 have only one, with allows a maximum CF configuration of two cards. We're waiting for confirmation from PowerColor.
Here are the front and the back of the card, high-res versions are also available (
front,
back). If you choose to use these images for voltmods etc, please include a link back to this site or let us post your article.