Product: ATi Radeon HD4850
Company: AMD
Authour: Alex 'Morgoth Bauglir' Voicu
Editor: Charles 'Lupine' Oliver
Date: June 26th, 2008
Introduction & Setup

Ready to go back to that really really robust DX9 API? We certainly hope so because that's what's going to happen throughout the following pages.

Again, before we start pouring out the graphs, lets revisit the changes we've implemented with this set of reviews:

  • We've moved from having a large heterogeneous mix of in-game settings to testing according to 3 exact presets:

    • BASELINE: This is the game set to its maximum quality settings, but without any AA or AF enabled

    • HIGH QUALITY: Same as above, but 4X AA gets enabled alongside 16X AF

    • EXTREME QUALITY: Game settings remain at their maximum respective value, but AA gets bumped to 8X, whilst AF remains pegged at 16X

  • For games that have no support for AA, including Stalker, Timeshift, Bioshock DX10, and Gothic 3 in this investigation, the baseline setting has 16X AF enabled

  • We're using the presets in an effort to improve overall readability and usability of the data we provide

  • Most in-built benchmarking utilities have been relinquished in favor of FRAPS runs - whilst we most certainly don't consider this to be the be-all end-all of testing, it's probably a better way of showing how the games tested will actually perform in practice

  • We've also moved from averaging 3 three minute runs with FRAPS to averaging 6 of them - this should help remove some of the inherent variability associated with FRAPS testing

  • Unless otherwise specified, all tests are run at 1920x1200

  • For each game, a graph will be presented to you showing the percentile increase of card A vs. card B - the percentile increase is calculated as (A-B)/B  and expressed in percentage points

This is a single-card performance investigation and Crossfire numbers will follow shortly. We'll also be looking at more "exotic" features like Edge-Detect or AAA quite soon, but those deserve their own separate piece.

Here are the specs for the system we used during testing:

With that out of the way, we'll start our DX9-fest with some UT3 action.

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