techpowerup.com - 10/23/2008
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Introduction Today AMD released their Radeon HD 4830 card which is based on the RV770 GPU which is also used on the HD 4850 and HD 4870. In order to properly position the HD 4830, AMD reduced the number of shaders in the RV770 GPU core from 800 to 640. The locking mechanism relies on ...
techpowerup.com - 10/22/2008
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techpowerup.com —
Introduction Today AMD released their new Radeon HD
4830 Series of graphics cards. The cards are positioned...
in the $100 to $150 segment to put additional pressure on NVIDIA. Compared to the bigger brother, the HD 4850, AMD reduced the number of ...
(more)
PowerColor Radeon HD 4830 512 MB
digit-life.com - 10/27/2008
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digit-life.com —
The phrase "office computers" is often used as
a synonym for cheap PCs, which barely manage Word...
and Excel. But it's only a convenient cliche that mentions the fact that unlike home multimedia configurations, computers used in offices usually do not ...
(more)
ECS A780VM-M2 Motherboard
legitreviews.com - 10/22/2008
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legitreviews.com —
The ATI Radeon HD 4830 graphics card is
the latest addition to the award winning ATI Radeon...
HD 4800 series lineup and comes packed with the power and premium features you need to take gaming to the extreme. Read on to see what AMD did to cut ...
(more)
AMD Radeon HD 4830 512MB Graphics Card Review
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Shader-deficient Radeon HD 4830 Could be in the Channels
techPowerUp! —
... of GPU-Z detected the card from AMD to have as many as 80 stream processors disabled from the original specifications for the Radeon HD 4830. In his article, W1zzard attempts to explain this anomaly.
HD 4830 wipes the floor with 9800 GT
Fudzilla —
... The card was originally expected to feature a crippled 192-bit memory bus, but luckily AMD opted for the full 256-bit bus in the end. Also, we were expecting to see 560 stream processors, but AMD made a last minute decision to enable an additional cluster. The fact that some samples sent out to reviewers had just 560 stream processors proves the decision was made just prior to launch. Fudo informed us about the change of plans a few days ago, and Wizzard also confirmed our report on techPowerUp . He got one of the crippled cards and had some fun with it, but don't worry, the ...
Some Radeon HD 4830 cards have only 560 shaders
DV Hardware —
... disabled, crippling the SP count further down to 560.
This did reflect in the card's performance against the one PowerColor sent based on the same GPU. The card from PowerColor outperformed the reference card due to its "proper" stream processor count. We urge reviewers and enthusiasts to verify the stream processor counts of their Radeon HD 4830 samples or products using the aforementioned build of GPU-Z.
More details about the issue can be read over here. Some Radeon HD 4830 cards have only 560 shaders - More news at ...
Did AMD mess up shaders on Radeon HD 4830 samples?
TweakTown's News RSS Feed —
... 4830 result matches the result I got with 560 shaders and the PowerColor 4830 matches 640 shaders. This test confirms that 3DMark06 Perlin is a valid test to determine the relative shader performance of a RV770 card. It also confirms that the register contents reflect the active number of shaders and that AMD's sample has the shading power of a HD 4850 with 560 shaders and that the PowerColor card is equally as fast as a HD 4850 with 640 shaders. You can read the rest of the story over here . ...
Retesting the Radeon HD 4830: Too Few SIMDs Enabled
AnandTech Article Channel —
... their line up in time for the holiday season. As is usual with a new graphics card launch, we published a review. The hardware looked good and offers gamers that really want to play games with good quality but don't need high resolution performance a solid money saving option. But a number of curious things happened throughout the course of the day yesterday. We first noticed an interesting article from the makers of GPU-z. Techpowerup.com posted a story on the fact that their reference sample from AMD only enabled 560 SPs rather than the full 640 we were all promised. We ...
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