You could use images as text but then you open a whole new can of problems such as:
- Search Engine Optimisation
- User Accessibility
- Responsive Design
- Website Speed
Pixel Perfect Font's Don't Exist
It's worth mentioning that no font will serve a pixel perfect because of the way font's are designed and then rendered. Most indifference are unnoticeable to the human eye, for example the same font will look different on a MAC than it might on a PC, but it doesn't stop there. Firefox 4 might render the font differently than say Firefox 12 - Also then you got to take into account that a same PC running at 1600x1080 may render the font slightly different than the same setup running at 1920x1080. Fact of the matter there is no such thing as getting it perfect.
So the belief that only browsers affect the outcome is false
- Screen Technology
- Browser Platform
- Browser Version
Images can look different
Also, images may look different on one screen then to the next, yes they will be techincally the same but visually they may note and this because of many factors such as color schemes, screen technology and so forth.
Your end result should be a font that fits your brand or image of the website that looks great and is good on the eyes. Visual indifference's should be noted but if the font looks good on all devices but does have indifference's then regardless of those indifference's the outcome should be same which is a good looking font. With the use of images or fonts your never get a identical like for like but what you should hope for is the outcome of looking 'GREAT' or the font differences can't be easily seen by the human eye. If everyone had the same PC, Same Spec, Same OS, Same Browser, Same Screen then this would be an easier task but currently we live in a competitive world with lots of gizmos and your seeking an impossible task :P Oh!! and a font may look different to one person than the next but don't get me started on that lol ;)