Resolution

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Resolution is the measure in which how many pixels are displayed on the screen.

For emulation of 2D systems, the resolution can only be upscaled, making the pixels more apparent. For emulation of 5th generation consoles and newer, the internal resolution can be increased to make the game look sharper.

Console Resolutions

System Native Resolution Native Refresh Rate (Hz)
Atari 2600 160×192* 59.922751013551 (NTSC), 49.860759671615 (PAL)
NES 256×224 (NTSC), 256×240 (PAL) 60.098813897441 (NTSC), 50.006978908189 (PAL)
Sega Master System 256×192, 256×224, 256x240 (some PAL games) 59.922751013551 (NTSC), 49.701460119948 (PAL)
SNES 256×224, 512×448 (NTSC), 256×240, 512×480 (PAL) 60.098813897441 (NTSC), 50.006978908189 (PAL)
Virtual Boy 384×224 (per screen) 50.273487773488
Sega Genesis 320×224, 256×224, 320x240 (some PAL games) 59.922751013551 (NTSC), 49.701460119948 (PAL)
Game Boy/Color 160×144 59.727500569606
Sega Game Gear 160x144 59.922751013551
Nintendo 64 640×240, 640×480** 60 (NTSC), 50 (PAL)*****
PlayStation 256×224p, 256x240p, 320x224p, 320×240p, 512x224p, 512×240p, 640x224p, 640x240p

320x448i, 320x480i, 370x448i, 370x480i, 512x448i, 512x480i, 640x448i, 640×480i

59.940060138702 (NTSC), 50.00028192997 (PAL)
WonderSwan 224×144 75.471698113207
Game Boy Advance 240×160 59.727500569606
Pokémon Mini 96×64 N/A
PlayStation 2 512×224 512×448

640x448? 640×480

60 (NTSC), 50 (PAL)*****
Sega Dreamcast 640×480 60 (NTSC), 50 (PAL)*****
GameCube and Wii 596×448

608×456 640×480*** etc

60 (NTSC), 50 (PAL)*****
Nintendo DS 256×192 59.826098288081
PlayStation Portable 480×272 60*****
Nintendo 3DS 800x240 top screen****

320x240 bottom screen

60*****

*This is a rough figure given for simplicity's sake. In reality, the Atari 2600 doesn't really output pixels, and it has no limits on the number of lines it can display. However, it did have a hard limit on the number of horizontal color clocks for drawing the picture (160), and most games only output 192 lines, hence the commonly given resolution of 160x192.

**While N64 games ran at various resolutions internally, in practice the hardware's VI component always doubled the scale horizontally, and output in either 640x240p or 640x480i, though there is letterboxing at times.

***Similar to N64, games ran at various resolutions internally[1], though output is usually in 480p.

****This is the "true" resolution of the top screen and what games will be rendered at in full 3d mode, however, due to said 3d effect the horizontal resolution is effectively halved. Each eye will only see 400x240 and games run in 2d mode will (normally) be rendered at 400x240 [2]

*****Preliminary or approximate value

Integer Scaling

Main article: Scaling

Upscaling the resolution will only look good if you scale it by integers (2x, 3x, 4x, etc.). If you are scaling with non-integers, you can make the image look better using the Pixellate shader.