Welcome

Forgot Password?
Online Members
None
Online Guests: 3
Poll
What game`s are you looking forward too
Infinite Warfare 1

Battlefield 1 1

Destiny dlc 1

No mans sky 0

Titanfall 2 0

Dishonored 0

Watch dogs 2 0


3 votes
Active Members
0
in the past 7 days
Web Traffic
Newest Members
Bin_London88
13th Apr

David c wilson
9th Jan

PS3Bears1690
3rd Jul 2016

Scottyrfc1690
23rd Jun 2016

Lesley75
16th Apr 2016
Want to know why PS4 isn't backwards compatible?
Forum » Psn news » Ps3 Ps4 and Psn news
Joined: 13th Mar 2012
Rank: Administrator
Likes 39
12th Dec 2013

Why isn’t PS4 backwards compatible?
Speaking to The Guardian former Rare dev Martin Hollis explains the problems behind backwards compatibility. Hollis states that the two usual options would be either to build PS3 chips into PS4 or to emulate it via sofware. Those approaches worked in the past but are now impracticable. Here are the three main reasons
1 Heat
While cost is now a big issue in adding old chipsets to new consoles (how much would a PS4 cost with a PS3 built in?) the biggest problem is heat. “With the high frequency clock rates (GHz), designing your board to incorporate the entire old machine is not easy or cheap, and worse, it will emit just as much heat as the old system did on its own”, says Hollis. “Heat is a big factor with modern system designs and you do not want to add 100 watts to your output, and another jet turbine style fan.
2 Software emulation
Basically early hardware could be backwards compatible because the chips and tech involved were simpler. With PS3′s six core Cell that’s not so easy – software emulation has to recreate the effect of several processes all happening at once through timing alone. Hollis explains: “Like the PS1, the PS2 had a single processor but the graphics system was a lot more complex, allowing for parallel processing, which meant it could run more than one bit of code at a time. You can emulate this on the more modern processors but you have to get the timing between the true hardware-based parallel processing and the software emulated version exactly right. And that timing would also have to take into account the differences between the territory versions, i.e. a game running on PAL or NTSC. Along with other factors that might be enough to break a game.
3 Performance headroom
One last problem is that the PS4 would need to be significantly more powerful than PS3 to run a PS3 game. And while PlayStation 4 is powerful it’s not the “ten times more powerful” Hollis estimates would be required. “To emulate an old system’s hardware in software you need a system which is significantly more powerful. This current generation is simply not that much more powerful than the last, especially in terms of general purpose compute. Moore’s law is basically over for CPUs, and has been for around five years. That means new machines do not have the power to emulate last generation in software.
Like (0) · Comments (3)
Last Edit: 12th Dec 2013 by WullieM
Forum » Psn news » Ps3 Ps4 and Psn news
Please login or register to reply.
Page Counter
1,006,736
Events
« Dec 2017 »
M
T
W
T
F
S
S
 
 
 
 
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Donate

Donate

Recent Donations
aliy1690
£3.00 GBP
9th May 2016
tennek72
£24.00 GBP
25th Feb 2015
UVF_PEENZ
£10.00 GBP
30th Jan 2015
harrythedog1
£10.00 GBP
28th Jan 2015
PB1690WATP
£18.72 GBP
21st Jan 2015
Next »
Chat Box
NO BOOSTING
<a href="http://photobucket.com/im ... 20cheat%20clan" target="_blank"><img src="http://i480.photobucket.c ... an/nocheat.gif" border="0" alt="No Cheat Logo Pictures, Images and Photos"/></a>
adsence
<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- big ad -->
<ins class="adsbygoogle"
style="display:inline-block;width:120px;height:600px"
data-ad-client="ca-pub-2947272814390945"
data-ad-slot="9550762915"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>