PS PS2 PS3 PS4 XBOX 360 ONE X NGC WII U NS Switch PSP PSV NDS 3DS 浮点运算对比

Warren117

What is a teraFLOP?

Thanks in large part to Microsoft's upcoming Xbox One X console, we've been hearing a lot about teraFLOPS lately, but what exactly is a teraFLOP? And which consoles have the most?

We're going to answer those questions and rank the consoles by their FLOPS in this gallery.

What are FLOPS?(什么是浮点运算)

They stand for floating point operations per second. They're used to measure a console's maximum graphical potential.

In this story, you'll see us mention gigaFLOP and teraFLOP. The former represents a billion FLOPS and the latter represents one trillion FLOPS.

How do you calculate a teraFLOP? 如何计算浮点运算

The basic formula for computing teraFLOPS for a GPU is:

(# of parallel GPU processing ** multiplied by peak clock speed in MHz multiplied by two) divided by 1,000,000

The number two in the formula stems from the fact that some GPU instructions can deliver two operations per cycle, and since teraFLOP is a measure of a GPU's maximum graphical potential, we use that metric.

Let's see how we can use that formula to calculate the teraFLOPS in the Xbox One. The system's integrated graphics has 768 parallel processing **. The GPU's peak clock speed is 853MHz. When we multiply 768 by 853 and then again by two, and then divide that number by 1,000,000, we get 1.31 teraFLOPS.

Imperfections with teraFLOPS 浮点运算的局限

While teraFLOPS can provide a relatively good indication of a console's performance, it isn't perfect. TeraFLOPS only measure a segment of GPU performance. For instance, AMD’s RX 480 graphics card offers 5.8 teraFLOPS, but is generally a little slower than Nvidia’s GTX 980, which offers 4.6 teraFLOPS.
浮点运算值提供了一个很好的参数去展示主机的性能，但它也不是完美的。浮点运算能力只是GPU性能的一部分。比如，显卡AMD’s RX 480提供5.8 teraFLOPS 浮点运算，但它的运算速度低于4.6 teraFLOPS浮点运算 Nvidia’s GTX 980。

This metric doesn't take into account a console's video memory, which can act as a GPU bottleneck. It also doesn't take into account CPU, system RAM, storage speed, thermals, and power limits, all of which can bottleneck performance.
而且它没有解释显存，它是GPU性能的瓶颈重要参数。它也没有包括CPU , RAM , 硬盘读取速度，温度等等。

Now that we've explained the technical lingo, let's get to the console teraFLOP rankings.

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别的不说psp的画质完完全全没有dc的好，除了光源好点，画面抖的很，锯齿的很，dc的画质稳定扎实的，如果不信看看首都高和刀魂

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上面360是初代的12倍tf，其实性能估计也就是个5，6倍而已

玩无止境

我玩游戏第一次被画面惊艳到是ss还是ps上的新忍传，第二次就是DC的莎木

玩无止境

居然二连了，编辑掉

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dc是和ps2同代的还是ps1同代？性能这么差？

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ps3是ps2的35多倍？吹牛的吧

乱兵刹神

你这还不如放到怀旧区 最近那里比较的贴很多。。

Warren117

曾几何时 发表于 2017-7-30 00:36
ps3是ps2的35多倍？吹牛的吧

浮点运算值提供了一个很好的参数去展示主机的性能，但它也不是完美的。浮点运算能力只是GPU性能的一部分。比如，显卡AMD’s RX 480提供5.8 teraFLOPS 浮点运算，但它的运算速度低于4.6 teraFLOPS浮点运算 Nvidia’s GTX 980。

rr7

最后一列是不是代表画面好坏程度。。