Tv 120hz vs 240hz which would be better?

Jesus

Ok so I'm looking for a new tv and I really don't know about the whole hz and fps.
My friend recompense me to get one with 240Hz. Will that picture look good?
He has one that is 240hz and when I saw it it looked like I was actually there in the tv show. Idk if the Hz caused that but does it make it look like realistic?
-And do you think the Vizio tvs are good?

Answer
- Top brands: Panasonic (Plasma) and Samsung (LED). (Plasma > LED > LCD). (LCD is going to be discontinued. A LCD tv uses cold cathode fluorescent lamps/CCFL backlights. A LED tv is a LCD tv, but with white or red, green, blue LEDs on the edge of the screen or a full array on the back of the screen).
= Plasma has best picture and audio quality (best response times, best viewing angle, best color quality, less/no motion blur for crisp/clear images because how it's refresh rate works). Newer Plasmas have improved their burn issues by using pixel shifting/scrolling. LCD/LED is best for bright rooms and have most light coming off the screen (Plasmas are not great for bright rooms because of screen glare and faded whites, but do great for dim or dark rooms). Newer Plasmas use less energy consumption and they are cheap to buy. LED are more popular because the manufacturers want to sell you their LED expensive tvs rather than their cheap Plasmas.

- I recommend 1920x1080p for movies, computer monitor/display, some tv shows, and some game console games and I recommend 1280x720p for some tv shows and some game console games. I recommend 40+ inches for movies and/or tv shows and 20-30 inches for computer monitor and 30-40+ inches for game console games.
- FPS (frames per second): Every video consists of a number of frames per second, think of a video as a fast moving flip book. NTSC countries use 60i or 30i FPS (newer stations use 30p or 60p FPS) for tv shows. PAL/SECAM countries use 50i or 25i FPS (newer stations use 25p or 50p FPS) for tv shows. Movies use 24p/25p/29p/30p FPS (first movie to use 48p was LOTR: The Hobbit). Games use anywhere to 2 to 120 FPS (older games use lower FPS while newer games use higher FPS, usually they are up to 60 FPS today).
- TV refresh rate (measured in hz): Example, A tv with a refresh rate of 120 hz means it refreshes/flashes the entire screen 120 times a second.

- How do LED or LCD tv refresh rates work with the FPS of a video? (I recommend real/true 240hz refresh rate, some tv advertising may fool you by listing the fake interpolation or fake backlight scanning/dimming refresh rates).
- http://en.wikipedia.org/wiki/Motion_interpolation (Names of the new technologies for newer tv's at the link): Motion Interpolation or Motion Compensated Frame Interpolation (MCFI), is a form of video processing in which new fake frames are generated between existing ones to up the FPS of a video to reduce motion blur and/or for judder removal/judder adjustment. MCFI video processing may cause gamer input lag and/or artifacts such as the soap opera effect (may ruin the look of a video).
- Many tv's allow viewers to turn motion interpolation (MCFI) off. The tv repeats the frames a certain number of times to match the tv's refresh rate. Example; To display 24 frames per second on a tv with a 120 hz refresh rate, each frame is repeated 5 times every 24th of a second.
- But what happens if the FPS of a video does not match the refresh rate of the tv? Then you get a pulldown, a pulldown is what causes a jittery screen (aka judder) because the tv repeats the odd frames a different amount of times the tv repeats the even frames. Example; A 3:2 pulldown is post popular because it is needed to match a 24 fps video with a 60hz refresh rate tv, odd frames are repeated 3 times (12x3=36) and even frames are repated 2 times (12x2=24) and 36+24=60 FPS for a 60hz refresh rate tv.

How does Plasma tv refresh rates work with the FPS of a video?
- It will take each pixel in a frame and and repeat it a number of times based on the number of sub-field drives (SFD) the tv has with it's refresh rate. Example 1; (NTSC countries) 600hz sub-field drive/motion tv means 60hz FPS x 10 sub-fields per frame = 600hz refresh rate. Example 2; (PAL/SECAM countries) 600hz sub-field drive/motion tv means 50hz FPS x 12 sub-fields per frame = 600hz refresh rate.
- What is focused-field drive (FFD) on Neo-Plasmas? (Light switching speed = better colors and less motion blur) 2500hz focused field drive means sub-fields are virtually packed into 1/2500th of a second as a sharp impluse, creating crisp motion images even in very very fast movining images (FFD is defined as a inverse of light emission period t. 1/t = 1/0.4ms = 2,500 FFD). Regular sub-feild drives like 50 FPS x 12 sub-fields = 600 hz, light emission spreads as wide as 1 field time (1/60th sec) maximum which results in blurry images for very very fast moving images.
- Refresh rates on Plasmas work similar to LED/LCD tv's. These settings are usually automatic, but you can change them in the advanced picture settings, Example 1; 2D 24p FPS mode and choose refresh rates of 48hz/96hz or 30hz/60hz with pulldown (might use interpolation frames for pulldowns), Example 2; 3D mode and choose refresh rates of 96hz for 24 FPS or 100hz for 50 FPS or 120hz for 60 or 24 fps.ect Of course it has gamer mode or many other adjustments.

Some of the information may be outdated/wrong, but still some useful information.
- http://reviews.cnet.com/tv-buying-guide/
- http://reviews.cnet.com/3dtv-buying-guide/
- http://reviews.cnet.com/best-high-definition-tvs/ (has models and reviews + more).

- Off brands use crappy/cheap and breakble electronics. For gamers I recommend the tv has at least duo/quad processores and gamer mode (gamer mode turns off stuff that requires processing/cpu power like upscaling/downscalling resolutions and/or interpolation/reapting frames for refresh rates.ect). TV's do have a input lag specification.
- HD-TV viewing distance calculations: http://isthisretina.com/ OR http://www.thx.com/consumer/home-entertainment/home-theater/hdtv-set-up/ OR http://www.sony-asia.com/support/faq/47537 OR http://en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

sony/samsung led 60hz vs 120hz tv?

Mike

I'm not sure how much the refresh rate actually effects led's i mean in regular lcds i can notice a slight differnce but from my experience is it worth spending extra $300 on the 120hz led and does the brand name effect the refresh rate do they use different scales? its only between these 2 brands because those are the only brands that make the 40 inch with the right dimensions to fit into my wall unit.

Answer
60hz can produce a noticeable flicker. You can drop this down to 50hz to eliminate the flicker

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What do you need to consider when buying a new tv?

led tv 60hz vs 120hz image

Kentucky

I haven't bought a tv in about 9 years. I'm completely overwhelmed when looking at tvs today. I know nothing about the specifics. I have cable. I need a 37" screen size. But...
Plasma, LCD, or LED?
Brands? Is Panasonic a good brand?
720 or 1080 p? what is that?
60 Hz? What is that?

Answer
(1) Take your time then and learn about new technical specifications so you can be an educated buyer. Don't rush into a purchase.

(2) Go to cnet.com and look at their HDTV buying guide - http://reviews.cnet.com/tv-buying-guide/

(3) At 37", you don't have to be too worried about a lot of the confusing specifications out there. The reason being is that a lot of the fancy options out there are really only better suited on larger sets (50" or larger). They are just hard, if at all possible, to see in smaller sets. Most good buying guides will tell you that you don't need to spend money on those features in that size.

(4) LED is just a form of LCD. The "standard" LCD TV uses fluorescent based lights as the light source. LED LCDs simply use LEDs as the light source. This is considered a premium feature though and will cost you more.

LED lights provide a lighter weight, less power consumption, and can provider truer blacks. That's why they have become a popular choice in LCD buyers.

(5) Standard LCDs and LED LCDs can have issues with fast motion playback. That's where you'll see the feature called Refresh Rate (60Hz vs 120Hz vs 240Hz). The higher refresh rates are meant to try and help with fast motion playback. You need to look at fast motion on an LCD though before investing in a faster refresh rate set. Everyone's visual sensitivities are different, so some people don't even really pick up on the LCD flaw at all, and so don't really benefit from paying for the premium option. Also, some people find the 120Hz or 240Hz options to have a peculiar looking motion playback.

(6) 720p and 1080p are resolutions.

Think of your screen as being a drawing composed of tiny little pixels. A 720p image is drawn using 1280x720 pixels and a 1080p image is drawn using 1920x1080 pixels. So in theory the 1080p picture will have more details because it has more pixels (more subtle information).

But again, your visual perception makes a difference. In reality in smaller sized sets you can't notice the extra pixels (they become so small they aren't visible really). Also, again, we all have different visual sensitivities so you need to look for yourself and not rely only on theoretical specs. I know people who have 50" sets at 720p and are 100% satisfied with the HDTV viewing experience.

(7) Plasma has a lot of great features inherent to the technology, so can sometimes be cheaper than an LED LCD. It naturally produces very good colors and blacks. LCDs brought in LEDs to help try and match Plasma. Plasma has an inherently super fast response time, so it can playback fast motion flawlessly (like an old CRT/tube TV set). That is one place Plasma definitely beats LCD.

Plasma though is glass. So it can be an issue for glare if the room you're putting it is very bright and you can't control that light easily. Panasonic has a really good anti-glare screen, but it is still glass, so will have more glare than say an LED LCD.

Plasma isn't made in smaller sizes. You would have to jump to at least 42" to get a Plasma.

(8) Panasonic is an amazing brand. They are the world leaders in Plasma TV technology. If you go Plasma, they should be your first consideration (and maybe your only consideration). They have one of the strongest reputations right now in television for both quality of image, but also quality of product. Panasonic LCDs are also very good quality TV sets (if you do go 37", Panasonic does have LCD offerings you might want to consider).

Sony, Samsung, Toshiba, LG, and Vizio are all also considered "top tier" brands. They too would be worth your consideration. Other brands would be considered "second tier" brands and frankly, I would tend to avoid those if possible.

(9) Shop around for prices. Most places will price match each other, so you can buy a set from the place closest to your house and just get them to price match the best price you can find out there.

Amazon.com is a great place to look for prices (or even buying frankly). I would always check prices there first. ABCWarehouse is also a good place to look for prices. I would take a peak at their online site for prices as well.

If you're getting close to your TV purchase, but can wait a bit, wait until late february and early march. There will be a release of some new TV models at that point. So you can either consider those or you can look for some big sales as the last year models (which are still perfectly great sets) are liquidated. June is the other big sale period (revving into Father's Day and also the second "new TV models" release phase). The final sale period is Black Friday. It always has good prices, but not always good models. The March and June sales I find can often result in better buys on the good models.

What computer video card do i need to run 3D on Samsung 3D HDTV 240hz?

Kev

I am getting a new 55" Samsung 3D HDTV 240hz 1080p LCD-LED television very soon.

My question is what video card for my computer am I going to need to run 3D games on that TV?

The video card I am using now is a ATI Radeon HD 4850
The price needs to be within $100-$400 USD

Answer
Details that would help would be what operating system that you plan to run. And what other specs you have for the system that you plan on using. I see that you are currently using an ATI card, so I would assume that you would want to have an ATI replacement card. I will also assume that you have enough room around your PCI slot to fit a dual slot card. Also power supply specs come in to play as well, especially where graphics are concerned. You want 600watt supply at the bare minimum. I would strongly suggest over 800watts and above to give you room to grow later.

Now you say you plan on running 3D games. That kinda narrows your list of possible choices to the more expensive end of the spectrum. Being able to play them and being able to play them well are two different things as I'm sure you know :P.

Requirements for HD3D Be sure to check that your TV is supported on this list. Also listed are the graphics cards that I recommended below. Go for the best that you can afford.
http://www.amd.com/us/products/technologies/amd-hd3d/Pages/supported-hardware.aspx

An important note from that list is that you will also have to get additional hardware. (3D glasses and such). I couldn't find any on AMD's website. Researching further into it, it appears that AMD delegates the task of 3D hardware sourcing and compatibility to third party manufacturers. The other options force you to purchase a specific monitor and glasses.

Choices:

Radeon HD 5970 (Hemlock) 2GB $499
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102887
A bit over your price range, but well worth it. Fastest card out at the moment

Then right beneath that you have the Radeon HD 5870

Radeon HD 5870 (Cypress XT) 2GB $369
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102888

I chose that specific 5870 because of the memory. It's a 2GB card, beware of the prices there. Make sure that you are paying for the memory and not for an over clocked GPU on a 1GB card. Don't settle for less than 2GB. And don't pay for an overclocked card, any overclock that you would get is marginal and could be done for free yourself if you so choose.

Comparison chart of the two so you can see the differences and decide for yourself:
http://www.anandtech.com/bench/Product/162?vs=165

To stay in your price range, you would want to stay with the 5870 though.

Now with all this said... I must mention that standard refresh rate for 3D is currently 120Hz and not 240Hz.
http://www.lcdtvbuyingguide.com/lcdtv/120hz-240hz-60hz.html -- Some reading on the subject.

Overall, I'd say those two cards are your choices. And congrats on the new TV. But stick with the 2D games for now, as for 3D technology, ATI doesn't seem to be on the ball.

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