It was the best of times; it was the worst of times. In this Dickensian tale, the good times are rolling for meganetworking experts in the enterprise sector while the poor and lonely belong in the consumer segment.

On Wednesday, hyperspeed network chip designer EZchip Semiconductor (Nasdaq: EZCH) released second-quarter earnings to standing ovations and an instant 16% share price jump. Sales increased by 16% year-over-year to $17 million and trickled down into 27% higher non-GAAP earnings. And if you thought that was good, management says that the real growth-boosting products are still two quarters away from full-scale production.

The company counts Cisco Systems (Nasdaq: CSCO) and Juniper Networks (NYSE: JNPR) among its largest customers. The networking giants may be out of favor and struggling in various ways, but that doesn't stop them from buying EZchip's ultrafast traffic-handler chips in record volumes.

After a tough July as EZchip's customers presented a parade of bad news, the stock has recovered and might start looking at fresh all-time highs again. At Thursday's opening bell, those record levels were just an 11% jump away.

By contrast, home networking specialist Entropic (Nasdaq: ENTR) is setting new 52-week lows every time I refresh the price quote. Last night's second-quarter report sent share prices down by 38% so far.

The maker of MoCA networking chips that let devices use your coaxial TV cables for high-quality networking purposes saw its share rise more than 300% in a single year before peaking. Since that fateful day in January, the drop back down has been just as steep as the upward climb.

Entropic's $61.5 million in revenue was a fair bit less than management guidance, mainly due to big-time customer Verizon (NYSE: VZ) seeing low demand for its MoCA-enabled FiOS service (what's the deal with that capitalization scheme?) and adjusting its inventories accordingly.

CEO Patrick Henry claims to like the MoCA market share he's grabbing, mostly from chief rival Broadcom (Nasdaq: BRCM). And while sales and earnings missed projections, 51% revenue growth and double the earnings is nothing to sneeze at. But management concedes that, "visibility beyond the current quarter is pretty difficult" in this unpredictable economy.

So Entropic is doing objectively better on the consumer side than EZchip and its business-class products. But Entropic shares trade for about 2.3 times sales and 8 times EBITDA while EZchip commands 14 times sales and 35 times EBITDA.

Are investors reading too much into one company missing an arbitrary target while another hits it? Perhaps. But if management insists on playing the guidance game, they should also be able to back up their own projections.

Follow this dynamic chip duo from the comfort of your desk chair. Just click here to add Entropic to your Foolish watchlist, or here to keep an eye on EZchip.