iXBT Labs - Computer Hardware in Detail

Platform

Video

Multimedia

Mobile

Other

NVIDIA GeForce GTX 480 Graphics Card

Architecture, synthetic tests and games.

April 3, 2010



<< Previous page

     Next page >>

Direct3D 11 shaders

To test the graphics cards in DirectX 11 tasks, we'll use samples from Microsoft, AMD and NVIDIA SDKs, as well as some demos.

Firstly, let's look at tests involving the new compute shaders. Being one of the key innovations of the new DirectX API, these shaders are used in a number of tasks, including postprocessing, simulations, etc. The first test is a DirectX SDK example with HDR rendering, tone mapping and postprocessing utilizing pixel or compute shaders.





We have to admit that Radeon HD 5870 outperforms GeForce GTX 480 in this test. The novelty loses when both pixel and compute shaders are used. The lag is considerable, up to 1.5 times, at that. As for Radeon HD 5970, it only has one GPU loaded, so it's outperformed by Radeon HD 5870.

The second test is also taken from Microsoft's DirectX SDK. It demonstrates N-body gravity computing, a simulation of a dynamic particle system affected by gravity.





The NVIDIA's novelty loses to Radeon HD 5870 yet again. About 25% this time, which is also a lot. Radeon HD 5970 still cannot uncover its potential, having only one GPU working.

The next text is NVIDIA's Realistic Character Hair. It uses a combination of geometry and compute shaders and tesselation, so it's closer to real tasks than the pure synthetics of the first two tests.





Well, in this test NVIDIA's new GPU shows a great result, considerably outperforming both Radeon HD 5870 and Radeon HD 5970 (still has only one GPU working). Note the performance difference of 1.5-1.8 times between the single-GPU cards, as well as their behavior when hardware tesselation is enabled.

With hardware tesselation, GeForce GTX 480 is sped up by 15%, while AMD's RV870-based solution is slowed down by almost 5%. In other words, tesselation is beneficial for NVIDIA's product in this case. This can probably be explained by different geometry pipelines, the performance of which we're going to examine next.


Write a comment below. No registration needed!


<< Previous page

Next page >>



blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook


Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.