How is AMD Venus Pro 2GB GDDR5?

The CPU is quite weak, and I don't known about the GPU, if it will be able to run the game or not. I wouldn't purchase that Lappy.

The Venus Pro (HD 8850M) has more shaders but a lower clock speed than a desktop HD7750. The two (shaders vs. clock) should roughly balance, so this card should provide performance equal to a HD7750, so if you can find out how NFS plays on that card, you should have an idea how it will play on the laptop.

Well, it's a 256-bit card with 680mhz core clock and memory clock at 3.6gbps.
Not the best for gaming definitely, but it should run NFS Rivals, paired with a proper CPU - yours here is pretty bad.

the drivers are abit different, which can lead to some few FPS less, but the chips in them are the same. (saw someone modding a gtx690 into a quadro card for drivers )

Yes the CPU is that weak. Technically every Lappy has weaker CPU"s than Desktop CPU's regardless of generation.
And that GPU is not meant to play games, its a workstation card, as you already know this. If you want to play that only game in your entire life, then you are welcome. That game can be played in integrated graphics (Intel HD 4000), so you can play it, but what about other games ?

The entire specs of that Lappy is rubbish, don't go with it. And remember you will not be buying Lappy every week or month, so raise your fund and go for a good one, after all its a long term investment, right ?

Look here : http://www.systemrequirementslab.com/cyri/requirements/need-for-speed-rivals/11870/?p=a

The answers above are quite an exaggeration. You guys are out of your mind if you think "Venus Pro" is some kind of special workstation part. It's basically Radeon 8850M. It's advertized as such on AMDs web site. I don't know why Dell lists it as "Venus Pro". Venus Pro refers to the new GPU architecture, not the model of the GPU itself. If this is a workstation part, why does Dell include a decidedly non-workstation grade i5-4200U processor with it? Notebookcheck did a test of this laptop and it passed with flying colors, including in game tests running at a reduced resolution 1366x768 resolution:

http://www.notebookcheck.net/Review-Dell-Latitude-3540-Notebook.105885.0.html

The review is excellent and very thorough.

In my experience, the Dell Latitude line are more business oriented. The kind of laptops you can put on a desktop at a business meeting without looking like a dork. They're thinner and lighter, and actually better built, all in all slicker machines than the Inspiron line. The mobile Intel Core processors use the same architecture as the desktop processors. The cores are basically the same. The only difference is that they're clocked slower to preserve power. (well that, and the mobile i5 and low power i7 CPUs are actually dual core with hyperthreading unlike the desktop parts).

Now in the portable space there are two kinds of CPUs, 15-17watt and 35watt TDP CPUs. The i5-4200U is the 15watt part, while the i5-4200M is 35watt. Yes, the U models are slower, but not by much. There were so many improvements in the IPC of Intel Core CPUs that I wouldn't be surprised if the i5-4200U is roughly comparable to a desktop i3 from a 2-3 years ago or a 35watt TDP i5 from a couple of years ago. For games or anything more CPU intensive, I'd prefer the M part (35watt TDP), but if the laptop happens to be overall very nice, I might consider it with a U part. You get 20-25% less pure CPU performance, but longer batter and quieter fan.

I am actually surprised with the price of this laptop on Dells web site. $779 for a laptop with an IPS 1920x1080p screen, high end graphics, and ULV i5 CPU that can run Battlefield 4 at med settings and Crysis 3 at low settings sounds great to me. To be fair, for $800-ish there may be machines with similar performance available, but most come with a lower resolution, non-IPS, or otherwise relatively a garbage screen. While 1366x768 looks good enough in games on 15 inch screen, 1080p is a must for web browsing, editing text, and pictures and other graphics.