The guys over at TweakTown have reviewed three Radeon HD 4870 in CrossfireX.
Read the review HERE.
Already impressed with the HD 4870, we strap three of them into IBP’s 4GHz rig and see what happens.
The GeForce 177.40 beta driver for the 32bit version of Windows Vista is dated June 16 and comes with support for the GeForce 6, 7, 8 and 9 series cards, the recently-introduced GeForce GTX 280 and 260s and a few more, yet unreleased, 9 generation and GT200-powered cards.
NVIDIA PerfHUD is a powerful real-time performance analysis tool for Direct3D applications, and it is widely used by the world’s best game developers.
More info at NVIDIA PerfHUD homepage
PerfKit 6.0 New Feature Highlights:
* No longer requires an instrumented driver on Vista!
* Supports GeForce 8 and 9 GPUs
* SLI Support
* Texture Visualization and Overrides
* API Call List
* Dependency View
* New CPU/GPU Timing graph
Eighteen months ago when nVidia’s GeForce 8800 GTX was king of the hill, a multi-GPU setup was either ostentatious and reserved only for the most die hard gamer if you were using a high-end card, or downright silly if you were pairing up midrange and lower. NVIDIA’s SLi initiative, started back with the GeForce 6 series, was basically a kludge designed to wring that last ounce of performance out of the cards of the era for the deep-pocketed enthusiasts. ATI’s CrossFire, when it debuted up until the release of the Radeon X1950 Pro, was an embarassment, offering poorer performance and compatibility than NVIDIA’s solution.
Read the complete article HERE.
The french website hardware.fr has just released a huge article (23-page) on the architecture of the Radeon HD 4870 and 4850. Currently this article is in french only but should be translated soon in english.
Read the full article HERE.
Hardware.fr vient tout juste de sortir un énorme dossier sur l’analyse détaillée des Radeon HD 4870 et 4850. Un must-to-read pour tous les graphics geeks que nous sommes!
Les 23 pages du dossier sont disponible ICI.
Bjarne Stroustrup, the creative force behind one of the most widely used and successful programming languages — C++ — is featured in an in-depth 8 page interview where he reveals everything programmers and software engineers should know about C++; its history, what it was intended to do, where it is at now, and of course what all good code-writers should think about when using the language he created.
Read the interview HERE.
Rage3D has published an article about the architecture of the RV770, the latest GPU from ATI.
Reag the complete article HERE.
As an opener to our launch day coverage, we’ll be taking a plunge into the RV770 and seeing what what is new, what has changed, what stays the same (quickie note: not much) and how it all fits together. We’ll be following pretty much the same structure that Scott Hartog, chief architect for the RV770 series, used in his presentation of the architecture, as it nicely flows from one aspect of the new chip to another, using Richard Huddy’s R600 architecture overview for comparisons and underlining the differences between chips. We’ll also check and see if we can actually achieve the theoretical numbers using a number of synthetic tests … don’t worry, the whole gaming enchilada will soon follow, we haven’t lost our focus.
As I said it in FurMark’s changelog, there is an issue under Vista with ForceWare drivers.
From this topic @ driverheaven.net, the problem seems to come from Aero-Glass and the workaround is to disable Aero-Glass for FurMark:
– right-click FurMark icon
– select tabulator “compatibility”
– tick the checkbox as seen in screenshot (whatever it’s called in your language)
– this disables “aero-glass” only for FurMark
Jay Dolan recently blogged about some of the performance optimizations he made to his Quake2-based engine, Quake2World. He provides links to various points in the source code to give context around some of the topics he discusses.
Read the post HERE.
Quake2 was released in 1997. Hardware acceleration was only available on higher-end PC’s, and things like multitexture and vertex arrays which are commonplace today didn’t even exist then. So naturally, Quake2’s rendering techniques appear very dated in 2008. Multitexture was made a part of the OpenGL specification in version 1.2.1, and is available on most 2nd generation hardware (TNT or newer). I strongly recommend cleaning up the renderer and removing any non-multitexture rendering paths.
Texture binds (glBindTexture) are rather expensive too, and so to minimize these per frame, you should group the world surfaces by texture before iterating over them. Note that a simple grouping operation is significantly cheaper than a qsort — overall order is not important, we just want to minimize texture changes.
Le site Hardware.fr nous propose depuis plusieurs déjà un dossier très complet et détaillé sur les nouvelles cartes 3D de NVIDIA, les GeForce GTX 260 et 280. L’architecture des nouveaux GPUs est expliqué, la consommation analysé, le tout suivi des tests “in game”.
L’article complet de 16 pages se trouve ICI.
The Hardware.fr website has published since several days an excellent article about the architecture of the latest NVIDIA 3D cards, the GeForce GTX 260 and 280
Read the complete article HERE – (in french).
Expreview has just published a huge 25-page review about Radeon HD 4870 and 4850. Expreview compares Radeon 4870 and 4850 with other modern graphics cards such as Radeon HD 3870/3870 X2, GeForce GTX 280/260 and GeForce 9800 GTX.
Read the complete review HERE.
Radeon HD 4870
Radeon HD 4850
So, numbers can talk for itself. With the price tag $199(HD 4850) and $299 (HD 4870), RV770 is the BEST bang for the buck. Compare to GTX 260, A $299 only HD 4870 is a smarter choice. Yes, using this kind of word seems quite biased, but if you read all numbers from our review you will see my point.
Compare to GTX 260, HD 4870 is only 3/4 of its price while test items show the card have almost the same firepower!
HD 4850’s rival is 9800GTX, and we can see while their price keeps the same, HD 4850 have more than 15% leading.
The XFX’s GeForce 9800 GTX Black Edition analyzed at Guru3D.
GeForce 9800 GTX reference clocks
* Core 675 MHz
* Shader processors 1675 MHz
* Memory 2200 MHz effective
GeForce 9800 GTX+ reference clocks
* Core 738 MHz
* Shader processors 1836 MHz
* Memory 2200 MHz effective
GeForce 9800 GTX XFX Black Edition
* Core 756 MHz
* Shader processors 1890 MHz
* Memory 2288 MHz effective
The black edition clocked products are pre-selected and tested products that next to a bundles items are guaranteed to run at high clocks absolutely stable. It’s therefore very hard to resist the XFX 9800 GTX BE as it definitely is the fastest product in within its product category.
Voici la liste des extensions OpenGL supportées par les pilotes Forceware 175.19 WHQL / WinXP32
Here is the list of OpenGL extensions supported by Forceware 175.19 WHQL / WinXP 32 drivers.
[French]Carte graphique utilisée[/French]
[English]Graphics card used[/English]: NVIDIA GeForce 8800 GTX / 768Mb
– Drivers Version: Forceware 184.108.40.20619
– OpenGL Version: 2.1.2
– GLSL (OpenGL Shading Language) Version: 1.20 NVIDIA via Cg compiler
OpenGL Extensions: 161 extensions
NVIDIA has released today a new set of ForceWare graphics drivers for Windows XP and Vista.
– WHQL-certified driver for GeForce 6, 7, 8, and 9 series GPUs.
– Improved 3D performance and load times for GeForce 8 and 9 series GPUs in some DirectX 9 and OpenGL applications as a result an improved shader optimizer.
– Supports single GPU and NVIDIA SLI™ technology* on DirectX 9 and OpenGL.
Note: Quad SLI technology with GeForce 9800 GX2, 3-way SLI technology, and Hybrid SLI technology are only supported on Windows Vista.