There are actually 2 different numbers that get called Gigabytes.  

10^9 tends to be used in storage contexts and other contexts. 

2^30 is used in CS contexts (for RAM for instance). 

Not wrong, a bit ambiguous at most.  

Lmfao meanwhile the wii and all consolea that camr before had colors to spare.

ROFL! Yeah, no.

NES had only a total palette of 64 colors (6 bit, though 10 were black, resulting into 54 colors total), and even that one was divided into palettes of 25 colors (5 bit including 7 black colors) for backgrounds and even just 3 + transparency (2 bit) for sprites as it's VRAM was too small for more. And even then having more than a couple sprites at the same time caused flickering because VRAM overflow.

SNES had a 32000 colors palette(15 bit) in total, but of those only 256 could be visible at once (8bit) in low resolution, or even just 128 colors (7 bit) with high resolution, while sprites were limited to 16 (4 bit) to save on memory.

Speaking of sprites, they were also limited in size and numbers, otherwise the VRAM would again overflow. Same with the screen resolution, which was only 256x240 on the NES and on the SNES (SNES also had higher resolutions, but those were interlaced, so only every second line or row or even both were actually used).

Let's have a closer look at the SNES for a while. The SNES has a total of 64 Kilobyte of VRAM. Calculate 256*240*8, which results in 491200 bits or exactly 60 Kilobyte for the background of a SNES game. it could have sprites of up to 64x64 in 4 bit color depth, which is exactly 2 kilobyte, so only 2 different of those could exist without screen flickering. Thus most used smaller sprites, for instance 8x8 sprites are just 32 byte tall, meaning 128 of those can fit into 4 kilobyte. And 128 sprites at once are also the maximum it could show based on it's specs.

The reason why older games are more colorful is not due to them having lots of colors, but because programmers could choose by hand exactly what colors they wanted, while the lack of VRAM imposed restrictions on things like resolution and the sprites. Once we reached millions of colors, that just wasn't feasible anymore, and instead the bit depth got simply reduced to not tax the memory too much. The strong compression of those textures to fit into the tiny VRAM further deteriorated their colors, and they looked very muted as a result.

Just listen to yourself. You made the ridiculous claim of muddied colors because of limited memory when much weaker consoles had vibrant colors everywhere.

ROFL! Yeah, no.

NES had only a total palette of 64 colors (6 bit, though 10 were black, resulting into 54 colors total), and even that one was divided into palettes of 25 colors (5 bit including 7 black colors) for backgrounds and even just 3 + transparency (2 bit) for sprites as it's VRAM was too small for more. And even then having more than a couple sprites at the same time caused flickering because VRAM overflow.

SNES had a 32000 colors palette(15 bit) in total, but of those only 256 could be visible at once (8bit) in low resolution, or even just 128 colors (7 bit) with high resolution, while sprites were limited to 16 (4 bit) to save on memory.

Speaking of sprites, they were also limited in size and numbers, otherwise the VRAM would again overflow. Same with the screen resolution, which was only 256x240 on the NES and on the SNES (SNES also had higher resolutions, but those were interlaced, so only every second line or row or even both were actually used).

Let's have a closer look at the SNES for a while. The SNES has a total of 64 Kilobyte of VRAM. Calculate 256*240*8, which results in 491200 bits or exactly 60 Kilobyte for the background of a SNES game. it could have sprites of up to 64x64 in 4 bit color depth, which is exactly 2 kilobyte, so only 2 different of those could exist without screen flickering. Thus most used smaller sprites, for instance 8x8 sprites are just 32 byte tall, meaning 128 of those can fit into 4 kilobyte. And 128 sprites at once are also the maximum it could show based on it's specs.

The reason why older games are more colorful is not due to them having lots of colors, but because programmers could choose by hand exactly what colors they wanted, while the lack of VRAM imposed restrictions on things like resolution and the sprites. Once we reached millions of colors, that just wasn't feasible anymore, and instead the bit depth got simply reduced to not tax the memory too much. The strong compression of those textures to fit into the tiny VRAM further deteriorated their colors, and they looked very muted as a result.

Because on Xbox 1 they are different game. Are you going to ask why do we need better GPU and CPU to play those games on XSX since we can do with much worse on X1 base model?

I don't think you get the point. Is BC easy between XB consoles? Is getting BC games to play off the HDD on the XBSX easy? Is getting next gen XB games to play on last gen hardware easy? Then why not make it so those next gen games, can be played off the HDD on XBSX to save time if you so choose?

I don't actually see why it technically couldn't anyway. If last gen games can be played off an HDD for XBSX, and next gen games will be playable on last gen hardware, why can't those same games play off the HDD on XBSX? Isn't Cyberpunk offering a free upgrade when you go from last gen to next gen?

If they could then they would have been fundamentally different games, the one you play from HDD or on X1X will take 1 min to load and all other similar aspects, the one you play next gen on the SDD will take 1s to load.

Not sure why you want to have the worse experience just so you don't need to transfer the data from HDD to SDD if you so much wants to go the cheaper route for the extended memory.