Hi everybody I was wondering if I should Upgrade My cpu from a AMD phenom II X4 820 to a AMD phenom II 955. My main purpose is gaming. Any advice or help will be appreciated .
yes it would be worth it for gaming heres a rough comparison:
http://www.anandtech.com/bench/Product/82?vs=88
but spending that money on a new graphics card/better card would be a better investment.
If it ain't broke, don't fix it. You should save your money and upgrade both your motherboard and CPU when the time comes such as when Bulldozer releases or when you feel like switching to Intel.
depends, I have a couple of questions.
1.) how much out of money pocket is it going to cost you.?
example:
I had a 940BE, I bought a 955BE and then sold my 940BE.
out of pocket money was $10.
in the process of the upgrade I also while in the case cleaned it out and tried different thermal paste.
also a learning experience for those who might need practice.
with that being one option.
2.) can you just simply overclock your current 820, and depending on motherboard try and unlock L3 cache.?
3.) what are the rest of your unit specs.?
maybe just an upgrade to a AM3+ motherboard in preparation for Bulldozer if running a slightly older board.
but that depends on your current specs and what you really want to do.
waiting it out for straight full Bulldozer platform to me is logical but not wise TO ME..
it gets pushed back and back and we still do not know about performance.
we already know what an overclocked 955BE or 965BE can do, very positive especially paired with good gfx card.
so I say pull the trigger on the CPU upgrade if not able to overclock it and/or unlock L3 cache.
then maybe AM3+ board.
also a switch to the Intel platform will be more expensive.
I now have a similar problem with my units now AGAIN..
AMD and my Intel.
I do not think that I'm ready for the 2nd generation Intel SandyBridge.
my i5-760 unit is so killer..
I might not even go Ivy when it's released, might have to wait little bit longer.
I might upgrade my AMD unit first after the release of Bulldozer depending on performance results and/or at least a new motherboard DDR3 and newer features.
my AMD unit is AM2+ and it's wicked (Asus M3N78-EM is a flagship board) so the newer technology has to really blow me away.
good-luck.
I'll look into that model dell in a few.
right now here's what I'm telling everybody.
Get an AM3+ motherboard and then you will have an upgrade path to Bulldozer.
This way you can also wait for Bulldozer to actually be tested in the real world before you pruchase.
The AM3+ motherboard will run the 955BE so more than likely your 840 will run as well.
The Gigabyte board I'm getting (AM3+) allows it from the start:
http://www.gigabyte.com/support-downloads/cpu-support-popup.aspx?pid=3901
Take all your Dell hardware you can over to it (new motherboard) possibly including RAM as well as the optical drives and such.
Now your all set.
Now by a real case and throw that Dell case in the closet..
I have the exact same case.
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119227
link to motherboard for exact details:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128509
GIGABYTE GA-990FXA-UD5 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
http://i1130.photobucket.com/albums/m529/malmental/IMG-20110530-00033.jpg
http://i1130.photobucket.com/albums/m529/malmental/IMG-20110803-00003.jpg
those seem ok for me but unlike the one i posted i dont think any of them support crossfirethese would be some better options (with free PandP too!):
http://www.dabs.com/products/asus-m5a97-am3--amd-970-ddr3-atx-7LYB.html?refs=48620000-473460000
http://www.dabs.com/products/gigabyte-ga-970a-d3-am3--amd-970---sb950-ddr3-atx-7JYR.html?refs=48620000-473460000
http://www.dabs.com/products/gigabyte-ga-970a-ud3-am3--amd-970---sb950-ddr3-atx-7JYQ.html?refs=48620000-473460000
http://www.dabs.com/products/asus-m5a97-pro-am3--amd-970---sb950-ddr3-atx-7K04.html?refs=48620000-473460000
http://www.dabs.com/products/gigabyte-am3--amd-990x-sb950-ddr3-atx-7JF9.html?refs=48620000-473460000
all of the above are based on the AM3+ 9-series chipsets, starting from £75 up to £90.
thats good to know i may consider buying one of them thenboth the Asus board support Crossfire and the final Gigabyte board (the most expensive one) supports both SLI and Crossfire. but the second and third board don't.
even with a GTX570 the difference seems to be about 2FPS:
http://www.tomshardware.com/reviews/pci-express-scaling-p67-chipset-gaming-performance,2887-4.html
it used to be really bad with the older P55 and X58 chipsets, but the 9XX-series chipset and the sandy bridge chipset are pretty good, the difference beetween x16 and x8 is 0% or so, in some benches a x8 slot does better than a x16 slot:
http://www.hardocp.com/article/2010/08/16/sli_cfx_pcie_bandwidth_perf_x16x16_vs_x16x8/2
no, with a 5770 the most i think you will notice is about 2-3FPS drop and i would reccommend crossfireing your 5770 with a 6770.
Nope as you can see in that graph Malmental linked, the best card you can crossfire a 5770 with is a 6770.
be sure to put the 6770 in the FIRST slot, and the 5770 in the second, thats why AMD reccommend (might not work the other way round.) and anyway crossfire 5770/6770 has similar (slightly worse) performance than an AMD/ATI 6950 (depending on the game ofcourse)!