the k70 is mostly more comfortable and flashy, as for performance, it closely resembles the k65 in performance, which is $65 USD, even cheaper than the first keyboard. I have it and would definitely recommend it. Better than my previous Razer keyboard, but it doesn't have a number pad, take that as you will.

As for the first keyboard you asked about, I'd just read reviews to see if people have had problems with it. I'd imagine it'd perform roughly the same. Mechanical keyboards mostly come down to switch preference than anything else.

I personally would get the Gigabyte. Those are both using cherry mx red so the keys should in theory act the exact same way. They both have anti-ghosting as well. Basically you are paying more for lights and the brand name of Corsair. Warranty may also be something you should consider. Whos is longer.

gigabyte stuff works and is straight to the point

Generally speaking, Cherry switches are Cherry switches. They should all be about the same. There are other companies that make Cherry knockoffs now that their patent expired, but even those will probably perform nearly the exact same. There might be some subtle differences in build quality which can be important to some people. Things like what the case is made of, or whether or not the switches are mounted to a metal plate or the PCB under them. I would also argue that in terms of "feel" you might want to research PBT plastic in place of ABS, but this carries a cost premium and the big gaming brands, to the best of my knowledge, aren't really making PBT keyboards because RGB lighting is the thing atm.

Whether or not any of these things warrant a cost premium to you is your decision. The only performance thing I can think of that isn't tied to the switch is what form of roll-over the keyboard has. N-key-rollover is the ideal, but I think that's pretty much standard at this point and you'll have a hard time finding a keyboard with an unacceptable amount of roll-over.

the best part of the k70 is that the frame isn't plastic

Only go for K70 if you want a tenkey. K65 is pretty much identical performance wise (been using the RGB on for about a year).

The K65 is ~£80 in the UK inc. delivery. Besides I do use the num pad a lot.

Gonna watch some reviews of both of them and go from there. Ty all for your helps

I just picked up a fully mechanical keyboard, for only $37. It's completely amazing and worth every penny. I've had no problems with it at all. It has white back lighting, and a "gamer" esk font, i don't care for it but it still looks great.

Amazon link: https://www.amazon.com/E-Element-Mechanical-Keyboard-Anti-Ghosting-Switches/dp/B01EKVTPO6/ref=sr_1_2?s=pc&ie=UTF8&qid=1485022213&sr=1-2&keywords=e-element+z77+tkl

The other keyboard I linked was ten-key too. I really use it a lot.

If you're just using it for gaming, get a tenkeyless regardless of what features it has. If there's a tenkeyless version of either keyboard at a better price, get it. I however use my keyboard a bit for my math homework, so the number pad actually does get use. Otherwise I'd be using a tenkeyless board myself

Edit: seeing as you use your number pad a lot, the strafe from corsair may not be a bad potential choice. However the K70 is certainly a good buy if you choose to get it

OP wants a full sized and red switches (ew blue switches)

Between the two, Corsair's is better and increasing the price would be better. I wouldn't get either though.

There are many issues with Corsair's keyboards. Nothing ever major, but still big enough that you shouldn't be getting any of their issues with the price you're paying. The keycaps are absolute garbage (paint-and-etched cheap thin ABS, so it wears down quickly, shines fast, I've mistaken the legends for dirt many times, and doesn't have a satisfying feel). The keycaps are also hard to replace, because Corsair went with a nonstandard bottom row (wider spacebar, smaller other keys to compensate) for no real reason, but that really limits replacement options. The cable is huge and bulky, much more than it needs to be, and makes even moving it around the desk hard (I had to bring mine with me every day for a while so I'm pretty bitter about its lack of portability especially). Keys wobble more than they need to too, and the case acts like an echo chamber that makes some not great pingy sounds on bottom-out and release. Again, all relatively minor, but you can get much better.

A magicforce with gateron switches would be my recommendation for a budget keyboard. Ducky, a Pok3r, Coolermaster, Leopold, Varmillo, and Filco all make/are very good keyboards that I would look into. You get better build quality for comparable prices, and none of the issues above.

If you are sure you want a fullsized keyboard but go with one of the non-fullsized keyboards there, I'd recommend a separate numpad as well. Good ones can be pretty cheap (a jelly comb is on amazon.co.uk for £18, or $17 on amazon.com), and you get the mouse space benefits of a TKL but get to keep the numpad too. Best of both worlds.

I wouldn't really say that. I'd recommend Gateron (smoother and cheaper, but more wobble) over cherry for linears and browns, I'd only recommend Outemu for blues (if you want it even louder than cherry, but all their other switches suck), and would not recommend Kailh or Greetech.

Corsair's cases are basically just their backplate exposed. They still have a plastic base and as far as feel goes it's no different.

Oh yeah, if you are interested (later) in customizing your board, Corsair and a lot of other brands use non-standard spacing on their keycaps (particularly the spacebar) which makes finding replacement keycaps for them much harder. A mechanical keyboard should last you a really long time so you never really know what you might do with it in the future.

http://blog.maxkeyboard.com/faqs/keycap-compatibility-and-size-chart/

The "Ducky | Das | Deck | WASD | Rosewill RK-9000 | CM Storm QuickFire XT | CM MasterKeys PRO L" is the most common layout to the best of my knowledge.

Then, on the much more niche end, you could research the stabilizer the keyboard uses. I've only tried Cherry stabilizers, and I doubt it matters much, but might as well throw the information out there.

http://www.wasdkeyboards.com/mechanical-keyboard-guide#stabilizers

And this in general has a lot of useful information.
https://www.reddit.com/r/MechanicalKeyboards/wiki/keycap_guides#wiki_stabilizers
It has a list of a few keyboards with what type of stabilizer they use.

Don't get razer and don't get the gimmicky addons such as the k95 with those extra g keys

If cost is a significant factor, it might be worth your while to look into a tenkeyless keyboard and a cheap separate tenkey pad.

cooler master has really nice mechanical keyboards

quick-fire rapid/tk are good ones to go for

I use the Ducky Shine 4 - Cherry MX Black, I think I remember that when you order you can change to whatever switches you want. Anyway I like this keyboard a lot and would recommend it.

get the cheaper one. also mx reds are garbage (in my opinion)

I'd say ..consider how important for you are the only significant differences between these 2 keyboards: backlight and wrist rest. the gigabyte keyboard could reveal to be uncomfortable, it depends from your desk height and how used are you to a wrist rest. after you chose the switches and extras there's not much else to keyboards..i expect the plastic from the gigabyte keyboard to be good, i got a 40 euro mech keyboard from an unknown brand and even them got the plastic right, no sweat or oil stick to keys as long as you don't eat on your pc :/

What makes you say that? Personally I want the keys to be quiet and I don't care about the 'bump' that you get with things like browns or blues.

I looked at that but wondered what else it offers over the Gigabyte for an extra £20?

I'd consider a ten-keyless but not an f-keyless like those you suggested. Even with a separate num pad I would certainly miss the f keys. I don't only game on my PC, I stream, program and dabble in video editing and cutting back on keys just seems like shooting myself in the foot.

Cherry MX reds are pretty grainy (all cherry is, but it's a lot easier to notice on linears, and even within linears is more noticeable on reds), and light switches are disliked by a lot of people and are louder than heavier switches (because you bottom out harder on lighter switches). I like light switches personally, but brands like Gateron would be smoother if you want to go that route. Of the common switch types, mx blacks (+ aftermarket o-rings or silencing clips) would be the quietest.

Ducky shines offer quality, basically. No issues, good quality everything (ducky shine 5 and later versions have some of the best ABS keycaps on any board, for example). Sturdier, better feel, ducky shine 5+ has good onboard programmability, just in general a step up.

Almost every board that doesn't have function keys built in has them available through function layers, so don't feel like you're missing out on functionality or anything. Imo it's more convenient anyway because you don't have to move your hands for it that way, I'm running a 40% keyboard (a minivan) and one of my favorite things is how much more accessible the function keys are.

Though that is entirely down to personal preference and it's fine if you prefer larger keyboards, which good brands like Ducky and Coolermaster do still offer.

-they are too light. I make a lot of accidental presses/typos on reds. Even people who swear by cherry reds tend to make a lot of typos like just watch a Reckful typeracer stream lol if he had other switches he would do so much better.
-I don't like linear switches, there is simply no feel. When I'm trickjumping trying to time stuff perfectly, its really hard because the switch activates part way down and I can't feel exactly when that happens. a/d/a/d strafes are also not as clean. its just fucking mush. as far as linear switches go they aren't even that smooth. most people agree they feel bad for typing so they are marketed as the best gaming switch, which in my opinion they also fail at.

there are people who love reds, I honestly feel they are drinking the cherry flavor kool-aid (yup, its red) but maybe you would like them who am I to say.
non-clicky cherry switches are all similar noise level (rubber domes are still quieter), but since most of the sound is from bottoming out its not bad with o-rings.