Xilinx Virtex-5 vs Altera StratixIII

tommywgt · 發表於 2007-2-9 15:09:53

Xilinx跟Altera征戰也過了數10年了, 這其間Xilinx理所當然是老大, 然而這幾年間Altera的表現也非常亮麗. 三年多前, Lattice由CPLD老大加入FPGA戰局, 這一段時間FPGA大量的降價, 不能說Lattice毫無功勞.

話說Altera老是在和Xilinx嗆聲, 說他的FPGA才是世界最新進的, 底下我收錄了二段"各說各話".
雖然這是典型的一個FPGA各自表述, 但是你有什麼看法呢?

Xilinx說法

reference: http://www.xilinx.com/products/s ... x/virtex5/index.htm

The World's First 65nm FPGA
Built on the revolutionary ExpressFabric™ architecture, the Xilinx Virtex-5 family is the ultimate system integration platform. With the industry’s highest performance, ultimate connectivity, optimized power, and lowest system cost, you can design next-generation systems for wired/wireless networking, audio/video, storage/server and other markets with maximum productivity

Why Virtex-5
The Virtex-5 family of FPGAs offers a choice of four new platforms, each delivering an optimized balance of high-performance logic, serial connectivity, signal processing, and embedded processing. Three platforms are available now:

Optimized for high-performance logic
Optimized for high-performance logic with low-power serial connectivity
Optimized for DSP and memory-intensive applications with low-power serial connectivity
Meet Your Performance Targets Easily
Achieve a two speed-grade performance gain with new ExpressFabric technology
550 MHz clocking
Performance-tuned IP blocks
352 GMACS from DSP48E slices
1.25 Gbps LVDS I/O
More about Virtex-5 performance advantage
Optimize I/O Bandwidth, Power and Cost with Easy-to-Use High-Speed Serial Solutions

100 Mbps—3.2 Gbps serial connectivity
Hardened PCI Express® endpoint blocks and Tri-mode Ethernet MACs
Low power transceivers: less than 100 mW at 3.2 Gbps
Advanced equalization to drive backplanes beyond 40”
Protocol kits accelerate development
Reduce Your Power Budget
35% lower dynamic power with 65nm ExpressFabric and power-saving IP blocks
Maintain low static power with 65nm triple-oxide technology
More about Virtex-5 power advantage
Ultimate Connectivity with SelectIO™ Technology
1.25 Gbps differential, 800 Mbps single-ended I/O
3.3V support at 65nm
Second-generation sparse chevron packaging reduces crosstalk
On-substrate bypass capacitors simplify PCB design
More about Virtex-5 SelectIO technology
Reduce System Cost
Choose smaller device with efficient ExpressFabric technology and 65nm
Meet aggressive performance targets in the least expensive speed grade
Reduce part count with built-in, low-power transceivers
Increase area efficiency with built-in PCIe endpoint and Ethernet MAC blocks
Choose smaller heat sinks and fans with reduced FPGA power consumption
Achieve 30-75% cost reduction for volume production using Xilinx EasyPath™ FPGAs
More about Virtex-5 low-cost advantage

Alter的說詞:

reference: http://www.altera.com/products/devices/stratix3/st3-index.jsp

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Stratix III Device Family — The Lowest Power High-Performance FPGAs

Highest Performance  Highest Density
Programmable Power Technology  Enhanced DSP Capabilities
Family Overview  Getting Started

Getting started on that next-generation system design? Imagine how much smoother the task would be with an FPGA that gave you the capabilities to implement any design with high productivity and low risk.

With Altera’s new Stratix® III device family, you get high-end FPGAs that combine the world's highest performance and highest density with the lowest possible power consumption. Stratix III FPGAs provide the high performance and high-integration capabilities needed for next-generation basestations, network infrastructure, and advanced imaging equipment.

With Altera, you get the devices you want with the features you want when you want them.  You also get the collaboration and support you need to design your next-generation systems with confidence.

Figure 1. Stratix III FPGAs Building on the Stratix II Architecture

Lowest Power High-End FPGAs
To design the Stratix III FPGA family, Altera's product planners began with the Stratix II FPGA architecture. Then, in collaboration with the top technologists from over 50 of Altera's major customers, they defined, designed, and developed the most advanced FPGA architecture for next-generation systems.

As a result, Stratix III devices incorporate features to combine high performance with the lowest possible static and dynamic power consumption—up to 50 percent lower than previous generation high-end FPGAs, including:

Programmable Power Technology
Selectable core voltage (0.9V or 1.1V)
Process and circuit technologies
Quartus® II PowerPlay power analysis and optimization technology
Stratix III devices are engineered for high-speed core performance coupled with high-speed I/O with the best signal integrity in the industry. For example, they are the only FPGAs capable of implementing DDR3 at 400 MHz. This increase in performance is achieved by the implementation of:

Enhanced DSP blocks for easy implementation of signal processing algorithms
Optimized internal memory for enhanced signal integrity memory interfaces
High performance external memory interfaces
Enhanced routing architecture
I/O flexibility to support the latest external memory standards
Best Price/Performance Options
To give you the best price/performance solution for your design applications, Altera's Stratix III FPGAs are offered in three application-optimized variants:

Stratix III L devices focus on logic-rich applications
Stratix III E devices focus on DSP- and memory-rich applications
Stratix III GX devices include multi-gigabit transceivers
HardCopy® structured ASICs provide the no-risk migration path from Stratix III high-density logic to low-cost, high-performance, high-volume production.

Advanced Process Technology
Altera and long-standing fab partner the Taiwan Semiconductor Manufacturing Company, Ltd. (TSMC), have been working on 65-nm process technologies since 2003. Since then, Altera has developed multiple test chips as part of a rigorous program to ensure that Stratix III FPGAs are successfully delivered on the latest 65-nm technology, in volume, and on schedule.

Exceed Performance and Finish Faster
Altera’s Quartus II software gives you the development and productivity tools you need to complete development faster, and ensure you have the performance, power, and signal integrity needed to meet or exceed your design requirements.

TimeQuest Timing Analyzer supports industry-standard Synopsys Design Constraints (SDC)-based timing analysis methodology to complete timing closure quickly
Incremental Compilation supports team-based design providing faster compilation for design iterations while preserving performance
PowerPlay Power Analysis and Optimization Technology provides automated power optimization to manage power from design concept through implementation
Four Stage Signal Integrity Analysis
Structured ASIC Co-Design supports seamless migration between Stratix III FPGAs and HardCopy structured ASICs

Altera甚至信誓旦旦整理了一份white paper來說明他的產品才是最好的...
http://alter.com/literature/wp/wp-01007.pdf
我這個人是從來都不相信政治語言

, 商人的話更是不可信,

你們覺得呢?

tommywgt · 發表於 2007-2-9 18:19:12

如題

最好是Xilinx, Altera原廠或代理商的FAE啦!!!

其他的人發表一下意見也好

tommywgt · 發表於 2007-2-16 16:14:25

Xilinx去年3Q就開始供貨了, Altera今年3Q還不知道會不會供貨...所以我投Xilinx一票啦!

有人有意見嗎?

tommywgt · 發表於 2007-3-2 17:41:24

口憐...

不過現在的XC5VLX330已經在出貨了, 我不太能體會你的痛苦, 因為在早先的香港商科成跟現在的三商安富利, 說實在的, 真的很不想跟他們打交道, 有一段時間, Xilinx被我當拒絕往來戶說...想到他們的態度有時還真的很想罵三字經 (修心修心...)
我在大公司時, 一口氣都一堆人來拜訪我, 在小公司時根本不太理或者跟本不理, 電話打了10來通, 找不到人也沒人回電話, 真不知Xilinx為啥找他們代理...還是說xilinx本身也是如此???

那個Altera的代理商就好一點點, 不過真正感覺好的還是Lattice代理商, 跟他們1x年的關係了, 沒斷過

tommywgt · 發表於 2007-3-6 10:05:15

NuHorizon "好利順"感覺是好很多沒錯, 只是在早個幾年時, NuHorizon 並沒在台灣賣
Altera另二家代理商也差不多吧, 一天到晚只想問你買別家的多少錢, 然後再報個低一點點點的價錢要你換...@#$$%^&
Lattice三家代理商有來往過二家, 感覺都很好

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[經驗交流] Xilinx Virtex-5 vs Altera StratixIII

用過FPGA的人都在參與一下啦