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Guru3D.com » News » Futuremark Updates 3DMark with API Overhead Feature Test

Futuremark Updates 3DMark with API Overhead Feature Test

by Hilbert Hagedoorn on: 03/26/2015 08:09 PM | source: | 36 comment(s)
Futuremark Updates 3DMark with API Overhead Feature Test

Futuremark updates its software and included a 3DMark API Overhead feature test for measuring differences in DirectX 12, DirectX 11 and Mantle API performance.

The new test is only available in the Advanced and Professional Editions of 3DMark.

The purpose of the test is to compare the relative performance of different APIs on a single system, rather than the absolute performance of different systems. The API Overhead feature test is not a general-purpose GPU benchmark, and it should not be used to compare graphics cards from different vendors. (We are working on a DirectX 12 benchmark with game-like workloads, which we expect to release soon after the public launch of Windows 10.)


Windows 10 - feature Test @ 1080P 

There has been much talk this year of new graphics APIs that let developers code 'close to the metal.' And though it's natural to think of the GPU, the benefits of APIs with lower overhead are actually achieved by making better use of multi-core CPUs to streamline code execution and eliminate software bottlenecks, particularly for draw calls.

A draw call happens when the CPU tells the GPU to draw an object on the screen. Games typically make thousands of draw calls per frame, but each one creates performance-limiting overhead for the CPU.

As the number of draw calls rises, graphics engines become limited by API overhead. New APIs like DirectX 12 and Mantle reduce that overhead allowing more draw calls. With more draw calls, a game engine can draw more objects, textures and effects to the screen.

The 3DMark API Overhead feature test measures API performance by making a steadily increasing number of draw calls. The result of the test is the maximum number of draw calls per second achieved by each API before the frame rate drops below 30 fps. 

What are the system requirements?

  • The DirectX 12 test requires a PC running an up-to-date version of Windows 10 Technical Preview (build 10041 or later), 4 GB of system memory, and DirectX feature level 11_0 compatible hardware with at least at least 1 GB of graphics memory.
  • The Mantle test requires 4 GB of system memory and AMD hardware that supports the Mantle API.
  • The DirectX 11 test requires DirectX feature level 11_0 compatible hardware with at least 1 GB of graphics memory and 4 GB of system memory.

Release notes:

  • 3DMark Windows v1.5.884
  • March 26, 2015


This major update adds the API Overhead feature test, the world's first independent test for comparing the performance of DirectX 12, Mantle, and DirectX 11. See how many draw calls your PC can handle with each API before the frame rate drops below 30 fps.

  • Compare DirectX 12, DirectX 11 and Mantle with the new API Overhead Feature Test, available in 3DMark Advanced Edition and 3DMark Professional Edition.
  • Added Feature Test selection screen.
  • Improved
  • Improved formatting of larger scores to make them more readable.
  • Result screen automatically shows FPS after running a single test.

Fixed

  • Fixed a bug that could cause the Sky Diver demo to hang at the cave entrance scene.

Download



Futuremark Updates 3DMark with API Overhead Feature Test




« MSI new Gaming All-in-One PCs featuring IPS technology, 3K and 4K displays · Futuremark Updates 3DMark with API Overhead Feature Test · Micron and Intel Unveil New 3D NAND Flash Memory »

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sykozis



Posts: 22469
Joined: 2008-07-14

#5040819 Posted on: 03/30/2015 04:21 PM
Honestly this test is more interesting from a CPU perspective then GPU.


Agreed.

I'd still like to see a comparison between FX-8320E and i7 4790K. Both with an R9 290X...... Do 3 runs with each configuration and see how the numbers look.

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