Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content.Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI).Two integrated dual-link DVI display outputs.Content-adaptive de-flicker filtering for interlaced displays.High quality pre- and post-scaling engines, with underscan support for all display outputs.Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays.Programmable piecewise linear gamma correction, color correction, and color space conversion.Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display.Shared exponent HDR (RGBE 9:9:9:5) texture format support.Depth & stencil texture (DST) format support.128-bit floating point HDR texture filtering.2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel).High performance dual channel interconnect.

Scale up rendering performance and image quality with 2 or more GPUs.

All anti-aliasing features compatible with HDR rendering.

Super AA (CrossFire configurations only).

Adaptive super-sampling and multi-sampling.

Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality.

Multi-sample anti-aliasing (up to 8 samples per pixel).

Memory read/write cache for improved stream output performance.

Accelerated geometry shader path for geometry amplification.

8 render targets (MRTs) with anti-aliasing support įull support for Microsoft DirectX 10 / 10.1.

Lossless color compression (up to 8:1).

Lossless Z & stencil compression (up to 128:1).

Early Z test, Re-Z, Z Range optimization, and Fast Z Clear.

Double-sided hierarchical Z/stencil buffer.

Fully associative texture Z/stencil cache designs.

High resolution texture support (up to 8192 x 8192).

Fully associative multi-level texture cache design.Up to 80 texture fetches per clock cycle.Shader instruction and constant caches.Command processor for reduced CPU overhead.

128-bit floating point precision for all operations.Dedicated branch execution units and texture address processors.Common instruction set and texture unit access supported for all types of shaders.

Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders.

Optimized for high performance HDR (High Dynamic Range) rendering at high display resolutions.

Fully distributed design with 512-bit internal ring bus for memory reads and writes.

Finally, we'll test the cooler even further to ascertain whether Sapphire left any more headroom for those looking to overclock the card even further.Ħ66 million transistors on 55nm fabrication processĢ56bit 8-channel GDDR3/4 memory interface In the pages ahead, we'll assess the overall performance of the Sapphire Radeon HD 3870 Toxic 512MB edition and see how it compares with a pricier competitor and also see whether the 'toxic' version makes the card more or less attractive from a price-to-performance perspective. The 'Toxic' model is a souped up Radeon HD 3870 that boasts a single slot Vapor-X cooler, which allows the card to be overclocked without the need for a dual-slot cooling solution. The Sapphire Radeon HD 3870 Toxic 512MB falls more inline with that kind of thinking. On the other hand, there are those who are less concerned with nickel and diming the process of buying a new video card and don't mind indulging themselves with a product that has a little extra panache. In the end, it all comes down to a balancing act between price, performance, and user's particular configuration. It's not simply a matter of buying the most expensive card one can afford. First, we need to consider the person's budget requirements, then assess the rest of their hardware to see what best fits their situation. With a myriad of options out there covering the price and performance spectrum, it's not always a cut and dried answer. When we're asked by readers for hardware advice, one of the most popular topics involves the graphics card.

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