Articles: Graphics

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PCB Design and Accessories

The described product has the same PCB design as the Bliss 8800 GT 1024MB GS we reviewed earlier. That’s normal as these two cards only differ in their GPU configuration.



The GPU power circuit has three phases and is governed by a Richtek RT8802A controller. A Richtek RT9259A controller is responsible for the memory chips. These controllers are often used on G92-based cards with unique PCB designs.

External power is provided to the card through a standard 6-pin PCI Express 1.0 connector with a load capacity of 75W. So it is clear that even top-performance versions of G92-based graphics cards can get along with one power connector only; there is no special need for an advanced power circuit. That’s why we don’t quite understand Nvidia’s decision to equip the GeForce 9800 GTX with two such connectors especially as its GPU is clocked at less than 700MHz while the Gainward card has a GPU clock rate of 730MHz.

As opposed to the Bliss 8800 GT 512MB and Bliss 8800 GT 1024MB GS, the Bliss 8800 GTS 1024MB carries memory manufactured by Samsung. These K4J52324QE-BJ08 chips have a capacity of 512Mb (16Mbx32), a voltage of 1.9V, and a rated frequency of 1200 (2400) MHz. The card’s memory frequency is 1050 (2100) MHz, though. That leaves some room for overclocking. The card has 16 chips, 8 on each side, for a total of 1GB of local graphics memory. Such fast memory cannot be cheap while the double amount of chips makes the Bliss 8800 GTS 1024MB even more expensive to make. That’s why it is going to cost more in retail that ordinary versions of GeForce 8800 GTS 512MB.

The GPU has the maximum configuration for the G92 core. Every subunit is active: 128 unified shader processors, 32 (64) TMUs, and 16 raster operators. The main domain frequency is increased from 650 to 730MHz while the shader domain is clocked at 1825MHz. Thus, the Gainward Bliss 8800 GTS 1024MB is the fastest graphics card among all G92-based solutions, including the upcoming GeForce 9800 GTX. The Gainward card is only inferior to the latter in terms of memory frequency, but by a mere 50 (100) MHz.

Like a majority of modern graphics cards, the Gainward Bliss 8800 GTS 1024MB is equipped with two dual-link DVI-I ports with support for display resolutions up to 2560x1600 pixels, and a universal 7-pin mini-DIN port for analog video output in S-Video, Composite or YPbPr formats. Besides, the card has a MIO connector and a dual-pin S/PDIF. The latter can come in handy if you don’t want to use the analog video output to enable the audio-over-HDMI feature.

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