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ATi 4xxx Series Review

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Jetway HD 4870 product page.


* Chipset : ATI Radeon HD 4870
* System Interface : PCI-Express2.0 x16
* CLK/MLK : 750MHz /900*4MHz
* Memory Size : DDR5 512MB / 256-bit
* RAMDAC : 400MHz
* Connector : HDTV, dual DVI-I DVI w/HDCP (HDMI adaptor)


Highlight

* RADEON HD 4870pro GPU
* PCI Express® 2.0 ¡V Support the most demanding graphics applications thanks to PCI Express® 2.0 support, which allows up to twice the throughput of current PCI Express® cards.
* 32-bit floating point texture filtering.
* Lossless Z Compression & Fast Z-Buffer Clear.
* Hierarchical Z-buffer with Early Z test.
* Support for Microsoft DirectX® 10.1 & Shader Model4.1.
* Complete feature set also supported in OpenGL® 2.1 .
* HDMI output support

Main Features

* <<480 stream processors ¡V More than enough horsepower to support the most demanding graphics applications.
* Texture Fill Rate 27 Billion texels per second .
* ATI PowerPlay? Technolog .
* ATI Avivo? HD Video & Display Technology .
* ATI CrossFireX ¡V Upgrade to even greater 3D performance quickly and easily thanks to plug-and-play ATI CrossFireX multi-GPU technology .
* Accelerated MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264 decoding and transcoding .
* Motion compensation, IDCT, DCT and color space conversion .
* Fully distributed design with 256-bit internal ring bus for memory reads and writes.
Driver & Support
* WindowsXP / Vista
* Linux Compatible
* Microsoft DirectX® 10.1 Compatible
* Support for OpenGL® 2.1
 
Playing Bioshock a bit shows that Anand's results for the 4850 is right about it. Easily 80-90 in the Medical Pavilion and more often than not over a hundred.

1680x1050, DX10, everything maxed.
 
A lot of buzz with this new card. I never bought an ATI card but am seriously considering it now...was about to buy a 8800gt for my new rig but now my whole rig is on hold...
 
Originally posted by: pcslookout
Originally posted by: Aberforth
Do you guys think NV will lower 260 prices?
Click to expand...

Maybe. Who do you think has better drivers?
Click to expand...

I dunno about ATI but NV definitely has worse drivers, they haven't completely resolved Vista driver issues since Jan 2007.
 
nda on 4870 expires on 6/25. they were originally going to hold back 4850 until then but too many partners were already selling the cards and benchies were leaking left and right.
 
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