Hd 4850 crossfirex Pc#

Because this way of doing things can introduce a lot of variation from one run to the next, we tested each card in five 60-second gameplay sessions.Īlso, we’ve chosen a new area for testing Crysis. Rather than use a timedemo, we tested Crysis by playing the game and using FRAPS to record frame rates. In the latter, the Radeon even outguns the GeForce GTX 260. Otherwise, the Radeon HD 4850 is faster than the GeForce 9800 GTX, particularly in the parallax occlusion mapping and Perlin noise tests. Only the GPU cloth test seems to give the 4850 trouble, and even then, it’s still significantly faster than the other Radeons. Through all but one of 3DMark’s synthetic shader tests, the Radeon HD 4850 fares extremely well. Sure, the Radeon may trail the 9800 GTX with each filtering type, but its filtering performance is vastly improved over the Radeon HD 3870. The 4850’s filtering performance scales predictably here. Not only does the card push significantly more texels per second than the 9800 GTX, it just edges out Nvidia’s new flagship GeForce GTX 280. Vantage’s texture fill rate test uses FP16 textures, and in it, the 4850 really shines. Moving to RightMark’s fill rate test, which uses 8-bit integer texture formats, the Radeon falls behind the 9800 GTX when thrown multiple textures. If you have questions about our methods, hit our forums to talk with us about them.ģDMark Vantage’s color fill test is typically limited by memory bandwidth, but the Radeon HD 4850 still manages to push more pixels per second than the GeForce 9800 GTX, which has over 70GB/s of peak memory bandwidth to the Radeon’s 59GB/s. The tests and methods we employ are generally publicly available and reproducible. We used the following versions of our test applications: Vertical refresh sync (vsync) was disabled for all tests. Unless otherwise specified, image quality settings for the graphics cards were left at the control panel defaults. Thanks to OCZ for providing these units for our use in testing. The Silencer 750W was a runaway Editor’s Choice winner in our epic 11-way power supply roundup, so it seemed like a fitting choice for our test rigs.

Hd 4850 crossfirex Pc#

Our test systems were powered by PC Power & Cooling Silencer 750W power supply units. Their quality, service, and support are easily superior to no-name DIMMs. Thanks to Corsair for providing us with memory for our testing.