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SPEC/GPC Frequently Asked Questions

What is SPEC/GPC and what does it do?
SPEC/GPC is a non-profit organization that sponsors the development of standardized, application-based benchmarks that have value to the vendor, research and user communities. For more, see: http://www.spec.org/gpc/publish/overview.html.

What benchmarking projects are active under SPEC/GPC?
The OpenGL Performance Characterization (SPECopcSM) group, begun in 1993, establishes graphics performance benchmarks for systems running under the OpenGL application programming interface (API). The group's SPECviewperf® benchmark is the most popular standardized software worldwide for evaluating performance based on CAD/CAM, digital content creation, and visualization applications. For more, see http://www.spec.org/gpc/opc.static/overview.html.

The Application Performance Characterization (SPECapcSM) group was formed in 1997 to provide a broad-ranging set of standardized benchmarks for graphics-intensive applications. For more, see http://www.spec.org/gpc/apc.static/apc_overview.html.

Why are some of the same applications (Pro/E, 3ds max, UGS) included in both SPECapc and SPECviewperf benchmark suites?
The two benchmark suites have different purposes and different types of users. SPECapc benchmarks are designed to measure, as much as possible, total performance for graphics-intensive applications. They typically include tests for graphics, I/O and CPU performance, and they require that the user has a license for the application on which they are based. SPECapc benchmarks are based on large models and complex interactions, and tend to take a long time to run.

Viewsets, the benchmarks that run on SPECviewperf, exercise only the graphics functionality of the application. Because it strips away application overhead, SPECviewperf allows direct performance comparisons of graphics hardware. SPECviewperf does not require users to have licenses of the applications on which its viewsets are based. This makes it more accessible to a wider range of users. SPECviewperf is also easier to use and faster to run than SPECapc benchmarks.

How can someone run SPECviewperf and/or SPECapc benchmarks and submit results for review and publication on the GPC News web site?
SPEC/GPC provides a wide range of plans to allow those who are not members of the SPECopc or SPECapc project groups to submit results for publication on this web site. For more information, see http://www.spec.org/gpc/publish/nonmember.html.

Whether submitted for publication on the GPC News site or not, anyone publishing results for SPEC/GPC benchmarks must comply with the benchmark license and run rules.

I cannot find benchmark results on the GPC News site for a vendor or systems configuration that interests me. How can I get the results I'm seeking?
Submitting benchmark results for publication on the GPC News web site is voluntary. If you are seeking specific results that are not published on the site, you can try the following:

  • Contact SPECopc <gpcopc-info@spec.org> to inquire about SPECviewperf results or SPECapc <gpcapc-info@spec.org> to ask about application benchmark results. If the vendor is a member of the appropriate group, a representative should be able to answer your question, and perhaps even provide some results.
  • Conduct a web search to see if any of the major publications - such as PC Magazine - that use SPEC/GPC benchmarks have published the test results you are seeking.
  • If you have a customer service contact for the hardware vendor or ISV, relay your request to him or her.
  • If it is feasible, run your own benchmark tests using a SPECapc benchmark or SPECviewperf.

Who do I contact if I have trouble running SPECviewperf or a SPECapc benchmark?
Contact SPECopc <gpcopc-info@spec.org> for problems with SPECviewperf or SPECapc <gpcapc-info@spec.org> for problems with application-based benchmarks.

How do I get my benchmark considered for adoption by SPECopc or SPECapc?
Send a description of the benchmark and links to information and/or downloads to the appropriate e-mail alias above.

Why should I trust results from a vendor-sponsored benchmark organization? Isn't this a bit like the fox guarding the chicken coop?
Industry vendors have the highest level of interest in developing credible benchmarks. Without good performance evaluation software, vendors would not be able to do valid system comparisons when developing new products, or gain recognition from the trade media and public for significant technology advances.

Members of SPECopc and SPECapc do not publish benchmarks in a void - they develop the benchmarks based on interaction with user groups, publications, application developers and others. Benchmarks go through testing from different vendors working on different operating systems and environments before they are released.

Contrary to some beliefs, "vendor-driven" benchmarks are probably the most objective, as they are not subject to personal biases. The competitive nature of vendors provides a natural system of checks and balances that helps ensure objective, repeatable benchmarks.

Have a SPEC/GPC question you want answered? Submit it to gpc-faqs@spec.org.