Samsung T220 vs T240

I cant decide between these two models and going to use it mostly for gaming:

Samsung T220:
[url=http://www.samsung.com/uk/consumer/detail/spec.do?group=itbusiness&type=computermonitors&subtype=lcd&model_cd=LS22TWHSUV/EN&fullspec=F][/url]
Samsung T240:
[url=http://www.samsung.com/uk/consumer/detail/spec.do?group=itbusiness&type=computermonitors&subtype=lcd&model_cd=LS24TWHSUV/EN&fullspec=F][/url]

Both of them have 20:000 dynamic contrast ratio.
So the difference between them:

1) Response time

I know its really hard if not imposible to notice any difference by a naked eye but still heres what i found out:

From what i know there are two methods of response time measurement: gray-to-gray (GTG) and black-to-black(BTB).

T220 has 2ms GTG response time. That also means that this models has another feature called RTC (Response Time Compensation) and it has 3 modes with each mode decresing the response time for a given amount at a cost of appearance of some called image artifacts ( a dark object moving on a light-gray background is leaving a short white trail).

T240 lacks this feature which means it is slower and is labeled with 5ms BTB response time which is equal to around 14ms GTG (as i read from some testing reviews through the internet).

2)Resolution
T220 has maximum resolution of 1650x1050.
T240 has maximum resolution of 1920x1200.
So which size is better. Is 22'' enough for gaming or 24'' is even better?

Both of them have 20:000 dynamic contrast ratio:


Considering these 2 factors, response time and size(resolution) which do you think is better for gaming?
Also price and graphic card are not an issue so leave them out.