How the memory diff hack works
Image A and Image B are two 6×6 grids of two-character hex codes. They are identical except for four cells, and your job is to find those four on Image B. Click a cell you think differs: a correct pick locks green on both images, a wrong one costs a strike. You get two strikes. The third wrong pick ends the run, and so does the forty second clock.
The score is the time to find all four. There is no speed bonus for guessing — wrong picks cost strikes, not time — so the fastest runs come from scanning methodically rather than clicking anything that looks off. A run that ends early still gets a time, with fifteen seconds added for every difference left unfound, so a failed run never outscores a slow finish.
This is the 5.0 memory diff hack as players describe it: two snapshots, a handful of changed values, a short clock and a strike limit. It is a visual search task, and the skill it trains is comparing two grids without losing your place.
Benchmento is not affiliated with Rockstar Games, NoPixel or any roleplay server. These are original implementations built from descriptions of how the minigames work, for practice in the browser.
What counts as a fast diff
| Time | Standing |
|---|---|
| Under 11s | Exceptional |
| 11 – 14s | Fast |
| 14 – 18s | Solid |
| 18 – 27s | About average |
| 27 – 40s | Cutting it fine |
| Over 40s | Timed out or struck out |
Thirty-six cells at a comfortable scanning pace is about a second each, so a first clean pass takes twenty seconds and most people find three of the four on it. The fourth is what separates fast from average — it is usually a value that looks plausible in both images, like 3B against 38.
How to find them faster
- Scan in rows, left to right, and do not skip. The differences are placed randomly, so any pattern you think you see is coincidence. A disciplined pass beats a clever one.
- Read pairs, not grids. Look at cell one on both images, then cell two. Reading a whole row of A and then a whole row of B is how you lose your place.
- Watch for near-twins. The changed value is always different, but 0 and D, 3 and 8, B and 8 look alike at a glance. Those are where the fourth difference hides.
- Do not spend a strike on a maybe. Two strikes is a budget for confident picks that were wrong, not for guesses. If you are not sure, keep scanning — there is time.
- Use the greens. Each found difference lights up on both images, which shrinks the area you still have to check.
Frequently asked questions
Is this the NoPixel 5.0 memory diff hack?
It is an independent recreation built from descriptions of how the 5.0 memory diff plays: two snapshots, four changed values, a short timer and a strike limit. It is not connected to any server and is not affiliated with Rockstar Games or NoPixel.
Do I click on Image A or Image B?
Image B, on the right. Image A is the reference. A correct pick lights the cell on both so you can see what was changed.
What happens on a wrong pick?
It costs a strike. You have two; the third wrong pick ends the run. Wrong picks do not cost time directly, but a run that ends early scores its time plus fifteen seconds for each difference still unfound.
Are the changed values random?
Yes, both which cells change and what they change to. The only rule is that a changed value is always genuinely different from the original.
Why is the fourth one always the hard one?
Because the first three are usually obvious on a clean pass, and the one that is left is the one that looked right the first time — typically a near-twin like 3B against 38. Slow down for the last one.