Inside Reports
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Inside Reports |
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Inside the CEVA CEVA-X1620 and CEVA-X1640A BDTI Technical Evaluation
The CEVA-X is CEVA’s sixth-generation DSP processor core family, following in the footsteps of predecessors such as CEVA-Oak and CEVA-Teak. The CEVA-X family, which made its debut in 2002, is highly scalable and includes variants with two, four, and eight multipliers. Members of the CEVA-X family target a wide range of signal-processing applications, from personal communications to home entertainment. This report provides an independent analysis and evaluation of the digital signal processing capabilities of the first two members of the CEVA-X family to be introduced, the two-MAC CEVA-X1620 and the four-MAC CEVA-X1640. The report examines the key features of these cores, including data path, execution units, memory architecture, and programming model. The signal processing performance of the CEVA-X1620 and CEVA-X1640 is evaluated using a suite of digital signal processing benchmarks developed by BDTI. The report includes benchmark execution times, energy consumption, and memory usage results for the CEVA-X1620 and CEVA-X1640 and competitors. Execution times combine cycle count results with the clock speed for the processor; energy consumption combines execution time and processor power consumption. The complete set of CEVA-X1620 and CEVA-X1640 benchmark results is included in an appendix in both tabular and graphical format and is presented alongside the results for several other processors to illustrate relative performance on digital signal processing algorithm kernels. This report is intended for anyone interested in understanding the signal processing performance and capabilities of the CEVA-X1620 and CEVA-X1640 processor cores. This report is especially useful for electronic system designers, hardware and software engineers, SoC designers, engineering managers, and product marketing managers. It will aid in assessing the suitability of the CEVA-X1620 and CEVA-X1640 cores for specific applications and will allow designers to make informed decisions when considering these cores for their latest designs. |
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Like all of the reports in the Inside series, Inside the CEVA CEVA-X1620 and CEVA-X1640:
Report includes analysis of the CEVA-X1620 and CEVA-X1640: |
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Table of Contents
Excerpts from BDTI's analysis“The CEVA-X16x0 should allow CEVA to expand into new applications, particularly those that require high speed. The two main competitors to the CEVA-X16x0, the StarCore SC1000 family and the LSI Logic ZSP family, offer comparable scalability in terms of parallelism—but only CEVA has announced plans for 32-bit versions of its processors. If CEVA fulfills its road map plans, the unusual scalability of the CEVA-X family will also become a compelling advantage.” “Many arithmetic operations can execute in any of the execution units. For such operations, the CEVA-X16x0 can achieve impressive throughput. For example, the CEVA-X1640 can perform sixteen 16-bit additions per cycle. However, limitations on data bandwidth and other resources will reduce throughput in many cases. On the BDTI Vector Add benchmark, for example, data bandwidth constraints limit the CEVA-X1640 to eight 16-bit additions over three cycles.” Sample benchmark resultsBDTI’s Real Block FIR Benchmark 
Inside the CEVA CEVA-X1620 and CEVA-X1640 includes over 90 pages of benchmark data, in tables and graphs, showing results on each of the 12 BDTI Benchmarks for the CEVA-X1620 and CEVA-X1640 and competitors. BDTI's Inside SeriesInside the CEVA CEVA-X1620 and CEVA-X1640 is the one of the many volumes in BDTI's series of focused technical analyses of single processors. The series currently includes the following reports: The BDTI Benchmarks™The benchmark results in Inside the CEVA CEVA-X1620 and CEVA-X1640 are derived from the application of the BDTI Benchmarks, an industry-standard suite of signal processing algorithm kernels. Each benchmark is painstakingly written and optimized in native assembly language following a strict specification. Pricing, Shipping, and Ordering InformationFirst copy: $1,500 Reports are shipped via FedEx 2-Day service. International shipments are sent via FedEx International Priority Service. No charge for shipping within the U.S.International shipping is $75.
Orders may be placed with payment by check, purchase order, or credit card. (Credit card orders will be processed on publication; no charge will be made until the report is shipped.)
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