Quad Master
Herald
PowerColor X800 GT
Hi Guys
Just got my copy of CHIP Mag Nov 2005 Issue.
PowerColor X800 GT
Memory & Bus width : 256 MB DDR3 / 256 bit
Core speed : 475 MHz
Memory speed : 490MHz X 2
Output : Dual DVI / HDTV
Interface : PCIe 16x
Pixel Pipelines : 8
PowerColor X800 GT Technology Specifications
- 8 parallel pixel pipelines
- 6 parallel vertex processing engines
- 160 million transistors on 0.13 micron fabrication process
- 256-bit quad-channel GDDR3 memory interface
- PCI Express? x16 lane native support
- MCE support
SMARTSHADER â„¢ HD
- Support for Microsoft DirectX 9.0 programmable vertex and pixel shaders in hardware
- DirectX 9.0 Vertex Shaders
- Vertex programs up to 65,280 instructions with flow control
- Single cycle trigonometric operations (SIN & COS)
- Direct X 9.0 Extended Pixel Shaders
- Up to 1,536 instructions and 16 textures per rendering pass
- 32 temporary and constant registers
- Facing register for two-sided lighting
- 128-bit, 64-bit & 32-bit per pixel floating point color formats
- Multiple Render Target (MRT) support
- Complete feature set also supported in OpenGLR via extensions
SMOOTHVISION â„¢ HD
- 2x/4x/6x Anti-Aliasing modes
- Sparse multi-sample algorithm with gamma correction, programmable sample patterns, and centroid sampling
- Lossless Color Compression (up to 6:1)at all resolutions, including widescreen
HDTV resolutions
- Temporal Anti-Aliasing
- 2x/4x/8x/16x Anisotropic Filtering modes
- Up to 128-tap texture filtering
- Adaptive algorithm with bilinear (performance) and trilinear (quality) options
3Dc â„¢
- High quality 4:1 Normal Map Compression
- Works with any two-channel data format
HYPER Z â„¢ HD
- 3-level Hierarchical Z-Buffer with Early Z Test
- Lossless Z-Buffer Compression (up to 48:1)
- Fast Z-Buffer Clear
- Z Cache optimized for real-time shadow rendering
- Optimized for performance at high display resolutions, including widescreen HDTV resolutions
VIDEOSHADER â„¢ HD
- Seamless integration of pixel shaders with video in real time
- FULLSTREAM? video de-blocking technology for Real, DivX, and WMV9 formats
- VIDEOSOAP? noise removal filtering for captured video
- MPEG1/2/4 decode and encode acceleration
- DXVA Support
- Hardware Motion Compensation, iDCT, DCT and color space conversioon
All-format DTV/HDTV decoding
- Adaptive Per-Pixel De-Interlacing and Frame Rate Conversion (temporal filtering)
This is what Chip has to say
1.> PCI-Express 256MB - 256Bit
2.> X800GT is superior to 6600GT Spec wise
3.> 8 Pixel Pipelines , 6 Vertex Shader Units
4.> GPU @ 475Mhz & Memory @ 985Mhz
Benchies
3D Marks 2003 - 9005
3D Marks 2005 - 4005
Doom3 - 40FPS @ 1024x768 - 4xAA & 8xAF :hap2:
HL2 - 50FPS @ 1280x1024 - 8xAA & 16xAF :hap2:
Fear - 38FPS @ 1024x768 - 4xAA & 8xAF :hap2:
Only downside is no SM 3.0
For: Good Perf , 256MB GDDR3 , no additional power req.
Against: No Shader Model 3.0 , slightly expensive[but i feel its perfectly priced]
Overclocking @ neoseeker.com
Seeing as this card was designed to be overclocked, it comes as no suprise that we were able to top out at 170 (!) MHz over the base spec. This is 100 MHz over the overclock that Powercolor ships the card with. This is extremely impressive and anyone who either owns or ends up owning this card should at least consider using its high performance potential.
We got the core on our card up from 400 MHz all the way to 570 MHz. The performance gains from such an overclock are definitely noticeable, and as you can see from our results, boost the X800 GT to very nice levels.
In 3DMark 05, the card when overclocked scored 94 frames in the Pixel Shader test. This still falls below the 6600 GT at stock speeds, but it's up almost 20 frames from the score the Radeon received at the speeds Powercolor shipped the card at.
In Doom 3, at 1024 x 768 with full filtering, the card received a boost of about 5 frames which seems paltry, but then again Doom 3 does not give good performance for Radeon cards.
Call of Duty 2 with filtering on at 1024 was bordering much closer to playable with the higher speeds, but there will have been a full months of optimisation between the demo and the retail game.
Overclocking @ Hexus.net
So just how far above the already-increased X800 GT 256MB frequencies were both samples able to go? Running overclocking tests by inching up core and memory speeds until visible artifacts became apparent, the air-cooled PowerColor X800 GT Xtreme 256MB sample was stable at 561MHz core and 1176MHz memory. The memory speed is a little lower than what the Samsung GDDR3 1.6ns RAM is specified to run at, so PowerColor may well be using slightly tighter timings.
I am completly impressed with X800GT also the price is awesome.
It will be still cheaper at lammy [Hoping]
Also is Sapphire X800GT available here.
Also does ne one have the cost of GTO's from Ati.
Is Powercolor the brand to get here ne other brand in India offering this same X800GT.
More Reviews
1.> http://www.neoseeker.com/Articles/Hardware/Reviews/atiradeonx800gt/
2.> http://www.xtremeresources.com/modules.php?op=modload&name=Reviews&file=index&req=showcontent&id=122
3.> http://www.xbitlabs.com/articles/video/display/pc-x800gt.html
4.> http://www.hexus.net/content/item.php?item=3639
Images
http://www.xbitlabs.com/images/video/pc-x800gt/front.jpg
http://www.xbitlabs.com/images/video/pc-x800gt/back.jpg
http://www.xbitlabs.com/images/video/pc-x800gt/chip.jpg
http://www.xbitlabs.com/images/video/pc-x800gt/bundle.jpg