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Gainward GeForce 4 PowerPack GS Ultra/750XP Video

Gainward GeForce 4 PowerPack GS Ultra/750XP Video - PCSTATS
Abstract: For example, what does 750XP really stand for? Does it imply that the memory can run up to 750MHz...
Filed under: Video Cards Published:  Author: 
External Mfg. Website: Gainward May 08 2002   Colin Sun  
Home > Reviews > Video Cards > Gainward Ultra/750XP

GeForce 4 Technology: nVidia Core Details

GeForce4 Ti4600
GeForce4 Ti4400
GeForce4 Ti4200

Core Size

0.15m
0.15m
0.15m

Core Speed

300 MHz Core
275 MHz Core
250 MHz Core

Memory Speed

650 MHz Mem
550 MHz Mem
500 MHz Mem

Memory Width

256 bit SDR (128 bit DDR)
256 bit SDR (128 bit DDR)
256 bit SDR (128 bit DDR)

Memory Size

128 MB
128 MB
128 MB

Memory Bandwidth

10.4 GB/s
8.8 GB/s
8 GB/s

As we can see from the above, those are the spec's as defined by nVidia for each of the GeForce 4 line of cards and the GS Ultra/750XP adheres to those defined above.

Unlike the transition from the GeForce 2 -> GeForce 3 which was a revolutionary step, the GeForce 4 is more of an evolutionary step. Based on GeForce 3 Technology, the GeForce 4 Ti's are built on 0.15m (micron) technology which allows the GeForce 4 to run up to 300 MHz core speed up from the 240 MHz the GeForce 3 Ti500 runs. The nFinite FX engine found in the GeForce 3 has been upgraded and the new nFinite FX II engine now has a second vertex shader which allows the GeForce 4 Ti too pump out more polygons then ever before. The rest of the nFinite FX II engine stays the same as the GeForce 3.

The Lightspeed Memory Architecture found in the GeForce 4 has also been upgraded as well, the new LMA II has a vastly improve Z-occlusion culling. Since most cards suffer from a great amount of overdraw (pixels are rendered in a scene even though they're not visible), nVidia tweaked the Z-occlusion. What this does is the GPU will sense what pixels will and will not be rendered and those parts that will not be rendered won't thus saving the bandwidth for other parts of the scene.

Also included in the LMA II architecture is nVidia's Quad Cache. They are the Vertex Cache, Primitive Cache, Texture Cache and Pixel Caches but unfortunately we don't know the size of the caches or how they have been tweaked for better performance from the GeForce 3.

nView:

One of the great things about the whole GeForce 4 line of cards (yes even the MX's) is nView. You remember nVidia's attempt at dual display called TwinView with the GeForce2 MX? Well nView is more then just dual display. The first thing that you will notice is that nVidia is taking direct aim at the dual display world, with dual 350 MHz RAMDAC's this ensures that a GeForce 4 videocard has sharp images even at 1600x1200. The GS Ultra/750XP is special in, it is the only GeForce 4 Ti that can support two DVI monitors at the same time. If you don't use DVI, not to worry the Gainward also has two DVI to analog converters. If you would like to use DVI and an analog based monitor that's also not a problem.

One of the neat options nView has is to allow translucency of programs. For those of us who like to watch TV or need to monitor another program nView makes that possible.

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Contents of Article: Gainward Ultra/750XP
 Pg 1.  Gainward GeForce 4 PowerPack GS Ultra/750XP Video
 Pg 2.  GPU and BGA Memory Cooling
 Pg 3.  Gainward Software
 Pg 4.  — GeForce 4 Technology: nVidia Core Details
 Pg 5.  Anti-Alaising
 Pg 6.  A bit more info on the card and overclocking
 Pg 7.  Aquamark 2.3 Benchmarks
 Pg 8.  DroneZ Benchmarks
 Pg 9.  Code Creatures Benchmarks
 Pg 10.  Commanche 4 Benchmarks
 Pg 11.  QIII Arena Benchmarks
 Pg 12.  Serious Sam 2 Benchmarks
 Pg 13.  3DMark2001SE Benchmarks
 Pg 14.  Antialiasing Benchmarks: AquaMark, QIII Arena
 Pg 15.  GeForce 4 Conclusions

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