Nintendo 3DS hardware thread
- Thread starter brain_stew
- Start date
Cortex-R4 is targeting realtime applications like automotive. This includes a lot of features for debugging/diagnostics like EmbeddedICE-RT, debug access port, tracing, etc.
It also has some differences due to implementing ARM v7-R instead of v7-A. A quick scan of the manual shows this mainly includes protected memory instead of virtual memory. That might fit migration from ARM9 better, I don't know.
I guess it boils down to which is a more compact implementation, although I think Cortex-R4 has a lot of features that wouldn't be that useful on 3DS. I expect Cortex-A5 to be more likely.
Left without HDR, right with HDR
I like the left pic better. More is visible.
Looks like all they did on the right pic was turn the brightness down...
Though a combination of the 2 would probably look better.
Just don't apply HDR to the characters.
I dont think that'd work for motion blur. They probably went the same route as dreamcast and blended the new frame with the previous one.
Nintendo president admits that 3DS will need re-charged more often than previous generations:-
"As for the battery, it is inevitable that Nintendo 3DS will be a device which requires more frequent recharging than Nintendo DS."
http://www.gamingunion.net/news/nintendo-3ds-battery-life-shorter-than-ds--2987.html
"He added: 'Perhaps we may need to dispatch to our consumers a message, something like, "Please place your Nintendo 3DS on the cradle as soon as you return home with it".'"
http://www.metro.co.uk/news/843464-nintendo-3ds-battery-life-will-be-worse-than-the-ds
seems they are preparing the ground for significantly poorer battery life.
"As for the battery, it is inevitable that Nintendo 3DS will be a device which requires more frequent recharging than Nintendo DS."
http://www.gamingunion.net/news/nintendo-3ds-battery-life-shorter-than-ds--2987.html
"He added: 'Perhaps we may need to dispatch to our consumers a message, something like, "Please place your Nintendo 3DS on the cradle as soon as you return home with it".'"
http://www.metro.co.uk/news/843464-nintendo-3ds-battery-life-will-be-worse-than-the-ds
seems they are preparing the ground for significantly poorer battery life.
one might equally obviously think, "more powerful, bigger battery capacity", but they havn't gone that route for whatever reason (size,price,portability).
AFAIK we don't know what battery they're using.
I shoulda said
"one might equally obviously think, "more powerful, equally more powerful battery",but they havn't gone that route for whatever reason (size,price,portability)."
DeadlyNinja
Veteran
People still don't understand it today. They're people whining about how much more powerful Nintendo could make the 3DS without putting thought into cost and power consumption. Next thing you know, someone's going to complain about the 3DS using carts again when they could be using mini DVDs or whatever.
That's the deal breaker for me. I'll be waiting for the 3DS lite instead.
More powerful than DS while having the same battery life doesn't mean bigger battery... process technology has gotten better since DS, architectures have gotten more power efficient... for the same amount of power you can get better performance.
As an extreme example, ENIAC in 1946 consumed 150kW of power and performed somewhere on the order of 5,000 additions/subtractions per second (of numbers that were roughly comparable in capacity to 32-bit integers) and could possibly do up to like 20 in parallel, so make that number 100,000. In comparison, a Cortex-M0 processor consumes under 100 uW at 1MHz and can do a million additions/subtractions per second. So that's 10 times the performance and at 1.5 billion times lower power consumption, or 15 billion times better perf/Watt.
As an extreme example, ENIAC in 1946 consumed 150kW of power and performed somewhere on the order of 5,000 additions/subtractions per second (of numbers that were roughly comparable in capacity to 32-bit integers) and could possibly do up to like 20 in parallel, so make that number 100,000. In comparison, a Cortex-M0 processor consumes under 100 uW at 1MHz and can do a million additions/subtractions per second. So that's 10 times the performance and at 1.5 billion times lower power consumption, or 15 billion times better perf/Watt.
Less battery life then Nintendo DS still leaves plenty of room for good battery life though. But I suppose that depends how extreme your needs are.
I've been expecting battery life of 7 - 10 hours for 3DS since it was announced, due to what Nintendo was saying at the time, if its significantly less then that I'll be surprised.
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brain_stew
Regular
Those comments seem to be more about tag mode and the automatic firmware upgrades than battery life while playing games. When you switched the NDS off it didn't consume any power at all but, by default, the 3DS will continue to sip power because it'll continue to use wifi to search for other 3DS units and wifi hotspots. If the machine is constantly sipping power then of course its going to have to be charged more often.
I'm still expecting very decent battery life in the region of 6-10 hours. 6 hours would still be much more battery life than any other (none Nintendo) handheld gets in high end 3D games.
I'm still expecting very decent battery life in the region of 6-10 hours. 6 hours would still be much more battery life than any other (none Nintendo) handheld gets in high end 3D games.
Here's a funny anecdote, related to the whole 'armchair analysis of handhelds' BOMs'.
So one of my PSP1K's needed screen replacement (due to some very unfortunate events that had previously occurred to it). A replacement 'Sharp PSP 1000 screen' was diligently ordered for $30 from an Amazon-trading merchant (what a steal!), was delivered, and was uneventfully installed by yours truly.
Then I powered the unit.
Frontally, the screen is almost true to the original. But wait, a 35 degrees change in the vertical view angle and *boom* - the image is either practically washed out to white (at 35 degrees up), or faded to almost compete darkness (at 35 degrees down). Or put in other words - those must be the most abysmal vertical view angles I've seen in my life, let alone on something presenting itself for a genuine PSP1K-quality Sharp TFT panel.
Conclusion: that's either a genuine knock-off, or a C-grade, never-meant-to-be-used-on-psp original Sharp production (which I doubt, as it has the correct Sharp model number). Either way, there's no theoretical chance it shares the same TFT tech with the original panel.
So next time you see BOMs for handhelds based off 'scientific evidence' from sites like iSuppli et all, just chuckle lightly, and metaphorically slap the 'analyst' on the back of their head, which hopefully would knock some sense into their vessel.
So one of my PSP1K's needed screen replacement (due to some very unfortunate events that had previously occurred to it). A replacement 'Sharp PSP 1000 screen' was diligently ordered for $30 from an Amazon-trading merchant (what a steal!), was delivered, and was uneventfully installed by yours truly.
Then I powered the unit.
Frontally, the screen is almost true to the original. But wait, a 35 degrees change in the vertical view angle and *boom* - the image is either practically washed out to white (at 35 degrees up), or faded to almost compete darkness (at 35 degrees down). Or put in other words - those must be the most abysmal vertical view angles I've seen in my life, let alone on something presenting itself for a genuine PSP1K-quality Sharp TFT panel.
Conclusion: that's either a genuine knock-off, or a C-grade, never-meant-to-be-used-on-psp original Sharp production (which I doubt, as it has the correct Sharp model number). Either way, there's no theoretical chance it shares the same TFT tech with the original panel.
So next time you see BOMs for handhelds based off 'scientific evidence' from sites like iSuppli et all, just chuckle lightly, and metaphorically slap the 'analyst' on the back of their head, which hopefully would knock some sense into their vessel.
I have never, ever put stock in iSuppli's numbers. Too much is based off of speculation and not taking into account deals.
DeadlyNinja
Veteran
Well I guess that decision is a bit rash. I should probably wait for the numbers before I decide on what to buy.
