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7000AE Performance Comparison
Altera® MAX® 7000 device family industry's fastest most preferred product-term solution. Now, with 7000AE devices, performance enhanced even more help designers meet today's high-performance demands variety systems. show high performance 7000AE devices, Altera conducted benchmark test that compared 7000AE device Xilinx XC9500XL device Lattice ispLSI2000VE device. This technical brief describes results benchmark test.
Altera Corporation Innovation Drive Jose, 95134 (408) 544-7000 http://www.altera.com https://websupport.altera.com
Performance Estimates Using Data Sheet Numbers
Performance estimates help determine maximum device performance most designs. easily calculate performance device using internal timing parameters found device family data sheet. Generally, device vendors maximum internal clock frequency, fCNT, measure performance. most designs, this fCNT represents highest performance device achieve. calculate fCNT, four timing delay elements must known: register delay (tRD), programmable interconnect delay (tPIA), logic array delay (tLAD), register setup time (tSU). Figure shows these timing delays equation used calculate fCNT.
Figure Timing Delays fCNT Equation
tPIA
Note
tLAD
Interconnect Logic Delay
Internal fCNT
tPIA
tLAD
Note:
calculate fCNT, device vendors register-to-register feedback path standard 16-bit counter.
Altera Corporation
M-TB-062-01
7000AE Performance Comparison
Table shows delay elements fCNT Altera EPM7128AE device, Xilinx XC95144XL device, Lattice ispLSI2128VE device.
Table Delay Elements fCNT Comparison
Vendor
Altera Xilinx Lattice Notes:
Note (1),
(ns)
Device
EPM7128AE-5 XC95144XL-5 ispLSI2128VE-180
tPIA (ns)
tLAD (ns)
(ns)
Total Delay (ns)
Internal fCNT (MHz)
delay element names differ each device. timing delays tRD, tPIA, tLAD, names used Altera. Equivalent delay names each device follows: Xilinx XC95144XL-5: tCO1, tLOGI, tSU; Lattice ispLSI2128VE-180: tGCO, tGRP, t1PTXOR, tGSU. values were taken directly from each device's respective data sheet.
Table shows that Altera EPM7128AE device highest fCNT MHz. This data sheet result suggests that EPM7128AE device provides highest performance most designs.
Benchmark Experiment
Although device data sheets provide good source information about general performance device, benchmark tests that implement real customer designs remain most reliable measurement performance. Customer designs normally complex nature, exercising both logic resources device compilation software. data sheet fCNT calculation result does adequately represent complexity customer designs. recent benchmark study customer VHDL designs, Altera Applications compared performance Altera EPM7128AE device Xilinx XC95144XL device Lattice ispLSI2128VE device. designs were compiled fastest speed grade each device. Table provides brief description resources used each design.
Table Customer VHDL Designs Used Benchmark Test (Part
Design
Average Macrocells Used
Pins Used
Altera Corporation
7000AE Performance Comparison
Table Customer VHDL Designs Used Benchmark Test (Part
Design
Average Macrocells Used
Pins Used
Table shows synthesis place-and-route tools used test.
Table Tools Used Benchmark Test
Device
EPM7128AE-5 XC95144XL-5 ispLSI2128VE-180
Note (1),
Place Route
Synthesis
Synopsys FPGA Compiler Altera MAX+PLUS version version 3.2.0 Synopsys FPGA Compiler Xilinx WebPack version 2.1WP2.x version 3.2.0 Synopsys FPGA Compiler Lattice ispEXPERT version version 3.2.0
Notes:
designs were compiled using fastest synthesis settings. design fit, optimization settings were applied.
EPM7128AE XC95144XL Device Results
Figure shows performance comparison between Altera EPM7128AE device Xilinx XC95144XL device. Both devices successfully customer designs; however, EPM7128AE device outperformed XC95144XL device customer designs. Overall, EPM7128AE device performed faster than XC95144XL device.
Altera Corporation
7000AE Performance Comparison
Figure EPM7128AE XC95144XL Comparison
EPM7128AE XC95144XL
fCNT (MHz)
Design
EPM7128AE ispLSI2128VE Device Results
Figure compares performance Altera EPM7128AE device Lattice ispLSI2128VE device. ispLSI2128VE device successfully only customer designs. EPM7128AE device outperformed ispLSI2128VE device those designs. Overall, EPM7128AE device performed approximately faster than ispLSI2128VE device.
Figure EPM7128AE ispLSI2128VE Comparison
Note
EPM7128AE ispLSI2128VE
fCNT
(MHz)
Design
Note:
gray missing from graph, Lattice ispLSI2128VE device failed that design.
Altera Corporation
7000AE Performance Comparison
Industry's Fastest Product-Term Solution
7000AE devices continue lead industry with fastest product-term solution. When comparing performance estimates Altera EPM7128AE device Xilinx XC95144XL device Lattice ispLSI2128VE device, EPM7128AE device highest internal fCNT. This result indicates that EPM7128AE device provides highest performance most designs. thorough performance comparison between devices, Altera Applications conducted benchmark study customer designs. results benchmark test showed that Altera EPM7128AE device performed, average, faster than Xilinx XC95144XL device faster than Lattice ispLSI2128VE device. EPM7128AE device clearly outperforms competition providing highest performance solution today's complex designs.
Innovation Drive Jose, 95134 (408) 544-7000 http://www.altera.com
Copyright 2000 Altera Corporation. Altera, MAX+PLUS, MAX+PLUS EPM7128AE, MAX, 7000, 7000A, 7000AE trademarks and/or service marks Altera Corporation United States other countries. Other brands products trademarks their respective holders. specifications contained herein subject change without notice. Altera assumes responsibility liability arising application information, product, service described herein except expressly agreed writing Altera Corporation. Altera customers advised obtain latest version device specifications before relying published information before placing orders products services. rights reserved.
Altera Corporation
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