The next-generation of Google's Nexus 10 may make its appearance at the upcoming Mobile World Congress (MWC) event at Barcelona, per reports.

"If our sources hold true, the Nexus 10 refresh might be the first design out the door packing the Mali T678 GPGPU chip. This chip supports from a single to an 8-core design with all the bells and whistles one might come to expect from a desktop 2013 GPU," reported Bright Side of News.

The current Nexus 10 sports a 10-inch display with 2560 x 1600 pixels resolution. The resolution is higher than the iPad 3 or the iPad 4. However, the tablet suffers with performance gap even with the Exynos 5 chip, which features two Cortex-A15 cores and a Mali T604-Class GPU, and seems a bit underpowered. 

Apart from performance, many tablet users may not find the Nexus 10 physically attractive when compared to other tablets available in the market. However, per the rumors it seems that Google is not keen enough to make changes to the external design of the tablet. Additionally, the 2GB of RAM will remain intact in the refreshed version of the Nexus 10.

"While we believe we saw a prototype design in an old chassis (it was identical to the currently selling Nexus 10), the performance difference in popular benchmarks was night and day. The final design of the part (Google currently does not have final versions of the chassis) should address the shortcomings of the original design, even though we were told that the company was satisfied with the original design. They did agree that the design lacked a bit of 'wow factor', but that will probably wait for the third generation," noted Bright Side of News.

The refreshed Nexus 10 may make its way to MWC, but it will be interesting to see if the tablet is able to take a major chunk of the market share.