The vertex shader units also conform to Microsoft's DirectX 9.0c specification, meaning Vertex Shader 3.0.
| Vertex Shader Summary | |||
|---|---|---|---|
| Shader Model | 2.0 | 2.0a | 3.0 |
| #of instruction slots | 256 | 256 | >= 512 |
| Max # of instructions executed | 65535 | 65535 | 65535 |
| Instruction Predication | - | Yes | Yes |
| Temp Registers | 12 | 13 | 32 |
| #constant registers | >= 256 | >= 256 | >= 256 |
| Static Flow Control | Yes | Yes | Yes |
| Dynamic Flow Control | - | Yes | Yes |
| Dynamic Flow Control depth | - | 24 | 24 |
| Vertex Texture Fetch | - | - | Yes |
| #of texture samplers | - | - | 4 |
| Geometry Instancing Support | - | - | Yes |
The vertex engine has seen a great range of improvements and extensions compared to the NV35 / 38. NV40 possesses 6 vertex units which follow a MIMD (multiple input, multiple data) design. NVIDIA also sets a new record with a triangle transform rate of 600 million polys/second (Radeon 9800XT = 412, FX 5950 = 356).
Vertex shader programs can theoretically be of infinite length in VS 3.0. Thanks to the extension of the dynamic flow control (more looping / branching options and new subroutine functions), shader code can now be written much more efficiently and offers new options for effects.
Again, here's summary of features:
- Full Support for Shader Model 3.0
- 216 (65,535) length vertex programs
- Vertex processing w/texture - displacement mapping
- Dynamic flow control - Branching, Call & Return, Subroutines
- Geometry Instancing (vertex stream divider)
Topics being discussed on the forums
- GPU...which one to buy? Vote here and find out! [Graphic & Displays]
- Performance Value For DX10 [Graphic & Displays]
- Core i7 vs. phenom ii x4 965 [CPU & Components]
- Pick NEW CARD 9 vs 8 series [Graphic & Displays]
- The Pointless Thread [CPU & Components]
Questions? Ask Tom's community!
Sponsored links
Related forums topics
- IS the i7 that much better than C2D or Q2Q chips now?
- best/fastest CPU for socket 939?
- New member, Need advice on upgrading pc.
- AMD pushes out three more triple-core chips!!
- Core i7 overclock feature changed
- 8800 GTX water cooling
- Vote the cooler YOU would choose for heavy OC!!
- Lots of posts on big CPU Heatsinks/Fans, but whats the best?
- Worth it?
- Is it possible to open pixelpipes on 7800GS?
- Do you need two 4-pin power connectors for an E-8500?
- PC Endlessly Rebooting All of a Sudden - Was Working Fine
- Would You Buy A Core 2 Duo System Today?
- 2 DIMMs vs 4 DIMMs - 4GB Dual Channel Memory
Related news
- United's Computer Check-in System Fails To Leap On Leap Day
- Windows Performance Rating for Vista examined
- TechEd 2006: Microsoft preps flash-based "performance accelerators" for Vista
- Core i7 Incompatible With Performance DDR3 Memory
- Vista computers to have five performance tiers, not two, says ATI executive
Best offers
|
GeForce GTX 295 Video Card (1.75GB,... | $559.99 TigerDirect More info |
|
GeForce 9800 GTX Video Card (512MB,... | $129.99 TigerDirect More info |
|
GeForce GTX 260 Video Card (896MB,... | $214.99 Newegg.com More info |
|
Radeon HD 4870 Video Card (1GB,... | $179.99 CDW.com More info |
|
Radeon HD 4890 Cyclone OC Video Card... | $209.99 Directron More info |
Popular Searches
Partners
The Games selection
crazy :
Interactive Boogy
Pick one of the 3 songs, hit on the correct keys matching this boy's dance moves.
|
action :
Yoyo the Star
Yoyo is a young girl who recently graduated and dreams to become a movie star (don't we all). You'll have to guide her on the path to stardom,...
|
Ads