Which one would be better for gaming? There isn't much difference but G510 has a better processor and IdeaPad a better graphics right? I don't know what that Intel HD Graphics card means, is it an important additional card and improves gaming?
Lenovo G510 (59-406666)
Intel® Core™ i7-4700MQ (2.4 GHz, 3.4 GHz Turbo, 6 MB Cache)
8GB RAM
AMD Radeon HD 8750M 2GB
Lenovo IdeaPad Z510 (59-413911)
Intel® Core™ i7-4702MQ (2.2 GHz, 3.2 GHz Turbo, 6 MB Cache)
8GB RAM
NVIDIA GeForce GT 740M 2GB + Intel HD Graphics 4600
SSD 8GB
Lenovo G510 (59-406666)
Intel® Core™ i7-4700MQ (2.4 GHz, 3.4 GHz Turbo, 6 MB Cache)
8GB RAM
AMD Radeon HD 8750M 2GB
Lenovo IdeaPad Z510 (59-413911)
Intel® Core™ i7-4702MQ (2.2 GHz, 3.2 GHz Turbo, 6 MB Cache)
8GB RAM
NVIDIA GeForce GT 740M 2GB + Intel HD Graphics 4600
SSD 8GB
considering video cards, i heard that 2x755m are way too hot and you said really few games are able to use both cards so is it better to buy the one with single card ? will it be enough and still better than gt740m and i7 4702MQ ?