GPU upgrade ??

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I have:
MB    Asus F1A75-M pro
CPU    AMD A6-3650
RAM    Kingston Hyper KHX1600C9D3/4GX (4*4GB)
HD1    Samsung HD103UJ    1TB
HD2    Samsung HD1541UI 1.5TB
GPU    Asus EAH5670
PSU    Antec Basiq 430W
    2-port Asmedia USB3 -card
Display Asus VS239H FullHD IPS panel

Everything is running at stock or default speeds, including the RAM at  
685MHz, (I haven't tweaked BIOS to the XMP-1600 it can take)

If I were to upgrade that Asus EAH5670 (AMD Radeon HD5670)  to a Radeon  
HD7770 card, could I expect some gain in WoW screen refresh?? Now I'm  
running at about 20-25fps (I like settings on high)
(Can I have both in use at the same time??)

And would my PSU survive (be enough)??

Money is a problem, so I can't upgrade both GPU and PSU
This HD7770 is about the highest spec'd GPU i can afford

I also (for the very small payout) do mint BTCs and LTCs
(where nVidias offerings are far from par)

Thomas Wendell
Helsinki, Finland
Translation to/from FI/SWE not always accurate

Re: GPU upgrade ??

tumppiw wrote:
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The cards are roughly in the same class.

A single point benchmark:

                 Passmark G3D
Radeon HD 5670    1066
Radeon HD 7770    2147

Using a benchmark like that isn't very good, because
your game and the driver response, might not match how
the benchmark works. So all we can conclude from
that benchmark, is they're "close to being equal".
If there was a ratio of 5 between them, I'd be more
confident of a graphics improvement. One lists
"VLIW5" as the architecture and the other "RISC MIMD",
and who knows, maybe WOW works better with one than
the other.

The opinion here, is WoW would be more CPU bound.

Your processor is respectable. A Q6600 is still quite
usable. You can get a factor of three improvement
in multithreaded applications, for about 300 dollars
plus the price of a new motherboard. Which would
exceed your available budget.

                                   Passmark CPU
Intel Core2 Quad Q6600 @ 2.40GHz  2963
AMD A6-3650 APU (Quad 2.6GHz)     3335
Intel Core i7-2600K @ 3.40GHz     8492
Intel Core i7-3770K @ 3.50GHz     9627    $308

Does your CPU support overclocking at all ?
I would try overclocking it by 10%, and see
if the game play improves at all. The idea there,
is to see how CPU bound it is. I have one game here,
that just a tiny change in CPU, makes a difference to
how smooth it is. All I needed was a small overclock,
to simulate an upgrade.

While you can overclock video cards, I've never tried
that myself, so have no feeling for how useful that is.

And, for balance, I can say that not all my overclocking
experiments have been positive. On a single core AthlonXP,
overclocking was pointless. It's possible in that
case, that the system bus was the limiting factor.
That's not a problem for your processor. Having an
integrated memory controller, as yours does,
makes a big difference. You should be able to overclock,
and get more from the processor.

In terms of power:

CPU                100W/12V * 1/0.9 = 9.3 amps on 12V2
New video card      80W = 6.7A on 12V1
Couple hard drives        2*0.6A on 12V1

Basiq 430W (there could be multiple generations of these...)

5V @ 20A, 3.3V @ 20A, 12V1 @ 17A, 12V2 @ 16A, -12V @ 0.8A, 5VSB @ 2.5A

3.3V and 5V combined power, less than 115W. (Estimated load = 60W)
12V combined power 384W. 384/12 = 32 amps. Your load is 17.2 amps.
Roughly speaking, you're using about half the power supply.

And when a game is CPU or GPU bound, then one of the two
pieces of hardware may not be running at max power. When
you do a power analysis, there's an assumption there is
some way for the application to force maximum power, which
may not be the case.

You can also find websites which will do power estimates
for you. You don't have to use my numbers.

Note that, if you read a video card advertisement, they'll
tell you that you need "26 amps". I've worked out a number
for myself, the 17.2 amp number. You really need to
do the math, to get a better estimate (the number will be
less than the video card advertisement web page). While I
haven't done the power calculation in full detail, I don't
see a reason to panic here.

What's important for an Antec, is who actually made it :-)
They contract out their manufacturing.


If you're on a limited budget, try the overclocking
experiment first, and see if a 10% CPU overclock makes
a difference to frame rate. If it did, perhaps
you are CPU limited.


Re: GPU upgrade ??

On 29.4.2013 23:38, Paul wrote:
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OK, thanks.
As I can't afford those better Intel Core i5/7 models and MB, I'm going  
for the GPU upgrade to a HD7770
Maybe not so much improvement in WoW, but according to this

I should get roghly 2x on mining...(Maybe in a year or two I can upgrade  
other parts..:-)   )

Thomas Wendell
Helsinki, Finland
Translation to/from FI/SWE not always accurate

Re: GPU upgrade ??

tumppiw wrote:

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Some new "mining equipment" will be available soon for BitCoin.
it's possible such equipment, could obsolete "home mining",
for all but the biggest operations. I don't understand
the economics well enough, to say how prevalent the
new "FPGA mining boxes" will be. A full box costs around
$30,000. But when the price of BitCoin is high, that
may provide an incentive to go crazy. Even though there
are fewer coins per period to fight over now.

As each new hardware solution for mining comes along,
it obsoletes the old solution. GPU wiped out CPU.
And FPGA could wipe out GPU. It's all a matter of
capital costs and payback periods. And with the high
price of coins for the moment, electricity is
no longer the concern that it was. (At $3 a BitCoin,
in some areas of the world, the cost of electricity
was too high to do profitable mining.)


Re: GPU upgrade ??

On 30.4.2013 5:00, Paul wrote:
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True, but as my machine is on 24/7 , it might do something useful anyway..

Thomas Wendell
Helsinki, Finland
Translation to/from FI/SWE not always accurate

Re: GPU upgrade ??

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My two cents.

1) I went to
to download the Windows installer for bitcoin 0.8.1 and Windows Security  
Essentials flagged the software as malicious. No go.
2) I live in a cold climate and pay for expensive electricity to heat my  
home with resistance coils in the baseboard. It is better to fill my living  
quarters with valuable digital hardware which is on 24/7. For me, computing  
is free (energy wise).


PS The average Canadian could save up to $150 per month in Internet  
connection fees by use of software in Debian Kali Linux. NASA has accepted  
Debian for use by astronauts and rejected use of Windows XP on the networked  
laptops they use in orbit. Go Debian, go!

Re: GPU upgrade ??

Norm X wrote:
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Well, this sounds like fun :-) Let me try my hand at it.

Well, first, we could check and see if source is available.
And figure out why it might, or might not, trigger a security warning.

Or, I'll just upload that file to and see what they think.

File name:          bitcoin-0.8.1-win32-setup.exe
Detection ratio:    0 / 46
Analysis date:      2013-05-11 17:59:19 UTC ( 7 hours, 48 minutes ago )

So maybe the detection you're seeing, is heuristic, and based on
the things that program needs to do, to not upset normal usage
of the computer ? (Like, backing off if the user is active.)

The linux.tar.gz, has a source directory. As does the
If you needed to, you could compile them from source.


Re: GPU upgrade ??

[massive snippage]

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[massive snippage]

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This whole thing about bitcoin mining smacks of a failure of due diligence  
and ignorance of principles of economy of scale:

AWS Free Usage Tier
( product link shortened)

Amazon will give you 750 hours per month of cloud supercomputing. They do  
this as a loss leader for those guys who might actually be doing some useful  
computing, like maybe computational fluid mechanics for weapons design.

( product link shortened)

"Cluster GPU Quadruple Extra Large 22 GiB memory, 33.5 EC2 Compute Units, 2  
x NVIDIA Tesla "Fermi" M2050 GPUs, 1690 GB of local instance storage, 64-bit  
platform, 10 Gigabit Ethernet"

From: ....

Peak single precision floating point performance .... Tesla M2090 .... 1331  

However, bitcoin calculations are all about crypto and hashing, massively  
iterative and vectorized AND, OR, NOT, XOR. Simple and fast compared to even  
single precision floating point.

The bitcoin crowd reminds me of the Greenhouse effect, global warming and  
the IPCC. Groupthink!. If they can't do simple computing research, integral  
calculus, and show a mastery of economics, their ideas are no more than  
fools gold.


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