ATI Radeon HD 4000 Series discussion

[natty]

Faster LCDs are coming as well. 120Hz are out and samsung has a 240Hz prototype as well.

Those are hdtv's. I don't think you can get an actual 120fps in computer games with those, can you?

[Metroid]

Those are hdtv's. I don't think you can get an actual 120fps in computer games with those, can you?

For example, most movie projectors advance from one frame to the next 24 times each second. But each frame is illuminated twice or three times before the next frame is projected using a shutter in front of its lamp. As a result, the movie projector runs at 24 frames per second, but has a 48 or 72 Hz refresh rate.

When LCD shutter glasses are used for stereo displays, the effective refresh rate is halved, because each eye needs a separate picture. For this reason, it is usually recommended to use a display capable of at least 120 Hz, but 200 Hz is optimal. Unfortunately most monitors cannot handle this rate, especially at higher resolutions.

While common multisync CRT computer monitors have been capable of running at even multiples of 24 Hz since the early '90s, recent "120Hz" LCD displays have been produced for the purpose of having smoother, more fluid motion. As 120 is an even mutiple of 24, it is possible to present a 24frame/s sequence without Judder on a well-designed 120 Hz display. If the 120 Hz rate is produced by frame-doubling a 60frame/s 3:2 pulldown signal, the uneven motion could still be visible.

Source

120Hz =! 120 FPS. That means that the monitor will be refreshed at a double rate and the only visible benefit you will see will be when you go the mirror and see that your eyes are still healthy after hours using the computer.

So even if they launch a 240Hz means 4 x 60 = 2 x 120 = 240Hz.

a movie in a movie theater is what 24 fps

It depends it varies to 24 to 30 frames per second, with this monitor they can create movies at 60 FPS.

Metroid.

[natty]

Source

120Hz =! 120 FPS. That means that the monitor will be refreshed at a double rate and the only visible benefit you will see will be when you go the mirror and see that your eyes are still healthy after hours using the computer.

So even if they launch a 240Hz means 4 x 60 = 2 x 120 = 240Hz.



It depends it varies to 24 to 30 frames per second, with this monitor they can create movies at 60 FPS.

Metroid.

Thank you. I knew there was a reason those were labeled 'hdtv' and not 'monitor'

[Monkeywoman]

"While we are away for Computex, CJ let us know that the Radeon HD 4870 X2 R700 prototype card is out and it beats the NVIDIA GeForce GTX 280 in 3DMark Vantage. The R700 card is basically made up of two RV770 GPUs with 2x256-bit memory interface to either GDDR3 or GDDR5 memories. We asked our sources about R700 in Computex and apparently AMD is going to let AIB partners to decide the specs themselves. Therefore, the partners will set their own clock speeds, PCB design, memory types, cooler solutions etc. and there will be Radeon HD 4850 X2 and 4870 X2 cards differentiate by the memory type. The R700 card apparently doing pretty well at this stage scoring about X5500 in 3DMark Vantage Extreme preset while the GeForce GTX 280 card is scoring X4800."-vr-zone

[Eastcoasthandle]

"While we are away for Computex, CJ let us know that the Radeon HD 4870 X2 R700 prototype card is out and it beats the NVIDIA GeForce GTX 280 in 3DMark Vantage. The R700 card is basically made up of two RV770 GPUs with 2x256-bit memory interface to either GDDR3 or GDDR5 memories. We asked our sources about R700 in Computex and apparently AMD is going to let AIB partners to decide the specs themselves. Therefore, the partners will set their own clock speeds, PCB design, memory types, cooler solutions etc. and there will be Radeon HD 4850 X2 and 4870 X2 cards differentiate by the memory type. The R700 card apparently doing pretty well at this stage scoring about X5500 in 3DMark Vantage Extreme preset while the GeForce GTX 280 card is scoring X4800."-vr-zone

This will be hilarious if true because "some made claims" that the 4870 ans X2 did poorly in vantage to begin with.

[003]

"While we are away for Computex, CJ let us know that the Radeon HD 4870 X2 R700 prototype card is out and it beats the NVIDIA GeForce GTX 280 in 3DMark Vantage. The R700 card is basically made up of two RV770 GPUs with 2x256-bit memory interface to either GDDR3 or GDDR5 memories. We asked our sources about R700 in Computex and apparently AMD is going to let AIB partners to decide the specs themselves. Therefore, the partners will set their own clock speeds, PCB design, memory types, cooler solutions etc. and there will be Radeon HD 4850 X2 and 4870 X2 cards differentiate by the memory type. The R700 card apparently doing pretty well at this stage scoring about X5500 in 3DMark Vantage Extreme preset while the GeForce GTX 280 card is scoring X4800."-vr-zone

If that is really true (and I hope it is), nvidia =

I am going to get dual 4870X2s for quad CFX. That should be some serious horsepower right there.