Breaking News

Fujifilm announces new mirroless cameras and lens DJI Announces A New Offering to DJI Care BIOSTAR ANNOUNCES THE NEW RACING Z590GTA AND B560GTQ MOTHERBOARDS Sony Announces groundbreaking Alpha 1 Camera with 50mp and 8K Recording ASRock Launches 1L Jupiter X300 Mini PC

logo

  • Share Us
    • Facebook
    • Twitter
  • Home
  • Home
  • News
  • Reviews
  • Forum
  • Legacy
  • About
    • Submit News

    • Contact Us
    • Privacy

    • Promotion
    • Advertise

    • RSS Feed
    • Site Map

Search form

CROSSFIRE vs SLI

Jul 14,2005 0

2. Rendering Modes

 

Review Pages

1. Introduction - SLI
2. Rendering Modes
3. SuperAA
4. The mainboards
5. The cards
6. Compatibility
7. Performance
8. The future

 

Crossfire on the other hand, offers 4 kinds of rendering modes: AFR, Supertile, Scissor and SuperAA.

AFR works by rendering all odd frames with one GPU while all even are left to the other. The method is exactly the same as AFR used by NVidia. The main problem with this method is that if a frame contains data that affects the rendering of the next frame to come, then that data needs to be transferred between the two cards. This overhead is why AFR is not so popular.

Scissor is also similar to NVidia's SFR with a small difference. Each frame is split in two parts and each GPU is assigned with a portion to render. That way, the GPUs can share the number of triangles processed in a scene, reducing their time to present us with the final rendered frame. Scissor can cut the screen in two parts, either horizontal or vertical, (SLI can only split the screen horizontally) and can also adjust the split to be uneven if in one of the two parts the scene gets more complicated than the other.

This is where ATi comes in with its novel method, Supertile. Their idea was to efficiently share the workload among the GPUs without spending time on calculating the GPU workload. Supertile is the default rendering option for Crossfire enabled systems but you'll also be able to pick your preferred method from the ATi Catalyst driver menu.

Supertile splits each frame into small tiles, just 32px by 32px in size and alternates their assignment to the GPUs just like a checkerboard. ATi has found that splitting the screen this way does not overload one GPU over another, as screen objects are usually much larger than the tiles and thus are split in two or more adjacent tiles.

 

Review Pages

1. Introduction - SLI
2. Rendering Modes
3. SuperAA
4. The mainboards
5. The cards
6. Compatibility
7. Performance
8. The future

 

Pages

  • « first
  • ‹ previous
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • next ›
  • last »

ATI

Nvidia

Tags: ATI Nvidia
Previous Post
Asus P5WD2 Premium
Next Post
Connect3D X300SE

Related Posts

  • NVIDIA Introduces GeForce RTX 30 Series Laptops, RTX 3060 Graphics Cards, New RTX Games & Features in Special Event

  • NIO Partners with NVIDIA to Develop a New Generation of Automated Driving Electric Vehicles

  • Quake II RTX with Vulkan Ray Tracing Game Ready Driver Released

  • Cyberpunk 2077 Available Now With Stunning Ray-Traced Effects and Performance Accelerating NVIDIA DLSS

  • Minecraft with RTX Now Officially Available For All Windows 10 Players

  • NVIDIA Debuts GeForce RTX 3060 Family for the Holidays

  • GeForce NOW Streaming Comes to iOS Safari

  • NVIDIA Announces A100 80GB GPU, Supercharging World’s Most Powerful GPU for AI Supercomputing

Latest Reviews

HLDS portable DVD Android external Recorder
Optical Storage

HLDS portable DVD Android external Recorder

Crucial X6 2TB portable SSD
PC components

Crucial X6 2TB portable SSD

Migrate Windows Installation to SSD
PC components

Migrate Windows Installation to SSD

8 Best Tips to Improve MacBook Performance
Consumer Electronics

8 Best Tips to Improve MacBook Performance

Terramaster F4-210 NAS Server
Enterprise & IT

Terramaster F4-210 NAS Server

Popular News

Samsung Releases New Flash Laptop

Samsung Releases New Flash Laptop

Facebook Unveils New Technology to Fight Child Exploitation

Facebook Unveils New Technology to Fight Child Exploitation

Samsung's Next Smartphone foray: Galaxy S10, 5G, Folding Phones

Samsung's Next Smartphone foray: Galaxy S10, 5G, Folding Phones

YouTube to Invest $20m in Educational Creators

YouTube to Invest $20m in Educational Creators

Samsung HMD Odyssey+ Mixed Reality Headset Comes WithTwo 3.5-inch AMOLED Displays

Samsung HMD Odyssey+ Mixed Reality Headset Comes WithTwo 3.5-inch AMOLED Displays

Twitter's Ad Sales Surge

Twitter's Ad Sales Surge

Japanese Wireless Carriers to Cut iPhone XR Price: report

Japanese Wireless Carriers to Cut iPhone XR Price: report

Google To Deliver Personalized Audio News Lists Through AI Assistant

Google To Deliver Personalized Audio News Lists Through AI Assistant

  • Home
  • News
  • Reviews
  • Forum
  • Legacy
  • About
    • Submit News

    • Contact Us
    • Privacy

    • Promotion
    • Advertise

    • RSS Feed
    • Site Map
  • About
  • Privacy
  • Contact Us
  • Promotional Opportunities @ CdrInfo.com
  • Advertise on out site
  • Submit your News to our site
  • RSS Feed