Sapphire X1950GT 256MB GDDR3 PCI-E Graphics Card £70 delivered (GC) - HotUKDeals
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* ATI Radeon X1950 GT - 500MHz
* 256MB-256bit GDDR3 memory - 1.20GHz
* 36 Pixel shader processor
* HDCP Ready
* Crossfire READY
* Dual DVI

Package includes
One video-out cable
One DVI-to-VGA converter
One Molex-to-6-pin Y-split cable

Good card for those people who bought the Dell E520's.
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Comments/page:
#1
Nice, Crossfire these or Crossfire the pro's?
#2
I was just about to post that this card has dropped £10 since yesterday, but then realised it's not the same card.

The one I posted HERE yesterday was the Sapphire RADEON® X1950 PRO, whereas the one posted in this thread is the SAPPHIRE RADEON® X1950 GT

Just what is the difference between the two cards?

Just waiting for the 512MB version of the Sapphire RADEON® X1950 PRO would drop in price as well as that's the one I want now. :)
#3
AFAIK The difference between the 2 cards is that the GT is clocked lower than the Pro.
Apart from that exactly the same card. Would be interesting to see how this overclocks
#4
This will NOT work in the standard Dell E520's. The card does nothing until the PCI-E power connector is connected and the E520 PSU has no free connector.

It MAY work with a sata-molex power adapter but I have not tried it. Also the card states it needs 450W whereas the standard Dell PSU is only 305W.

I fitted a Corsair HX 520 PSU in mine and all is perfect.

Dean
#5
Deanc1966
This will NOT work in the standard Dell E520's. The card does nothing until the PCI-E power connector is connected and the E520 PSU has no free connector.

It MAY work with a sata-molex power adapter but I have not tried it. Also the card states it needs 450W whereas the standard Dell PSU is only 305W.

I fitted a Corsair HX 520 PSU in mine and all is perfect.

Dean


Is that right? The card needs 450W on it's own or do you mean ATI recommend a system using one if these should have minimum of a 450W PSU?
#6
Ripperoo
I was just about to post that this card has dropped £10 since yesterday, but then realised it's not the same card.

The one I posted HERE yesterday was the Sapphire RADEON® X1950 PRO, whereas the one posted in this thread is the SAPPHIRE RADEON® X1950 GT

Just what is the difference between the two cards?

Just waiting for the 512MB version of the Sapphire RADEON® X1950 PRO would drop in price as well as that's the one I want now. :)


Why is the 512MB version so much more desirable?
#7
tgbyhn10 - It isn't, for the majority of games, on sub-24" resolutions.

Here is quote from wiki about the differences between X1950 models:

The X1950 Pro is released on 17 October 2006 with a MSRP of $200 and intended to replace the X1900GT in the competitive <=$200 market segment. The X1950 Pro GPU is built from the ground up with only 12 texture units and 36 pixel shaders. It is based on the 80nm RV570 core, allowing to draw and dissipate less power than the 90nm R580-based cards.

The X1950 Pro is the first ATI card that supports native Crossfire implementation by a pair of internal Crossfire connectors, which eliminates the need for the unwieldy external dongle found in older Crossfire systems. Performance-wise, the X1950 Pro trails slightly behind a X1900XT 256 MiB, due to a deficit of 4 texture units and 12 pixel shaders, as well as lesser GPU and memory clocks. The X1950GT was released in January and is basically an underclocked X1950 PRO.

On October 20, there was a quiet launch of the X1950XT, though none were actually on stock at retailers. The X1950XT features the same board, cooler, and GDDR3 memory as the X1900XT ,however, using the R580+ core with higher clock speeds.


[FONT="Courier New"]
NAME_____CORE__PROC__CORE/RAM_CONFIG_____MTex_MTri_MEM_INT_MEM_BW
X1950 GT RV570 80 nm 500/600 12:36:12:8 6000 1000 256-bit 38.4 GB/s "native" CrossFire (internal bridge), HDCP (1/07)
X1950PRO RV570 80 nm 575/690 12:36:12:8 6900 1150 256-bit 44.2 GB/s "native" CrossFire (internal bridge), HDCP
X1950 XT R580+ 90 nm 625/900 16:48:16:8 10000 1250 256-bit 57.6 GB/s Uses GDDR3 (256 MiB/512 Mib) and A31 chip rev.[/FONT]

So X1950Pro is about 15% faster than X1950GT, but as the GT is underclocked there is a decent possibility it can be clocked up to X1950Pro specifications.
#8
So the XT is the Daddy the PRO is the Mummy And the GT is the Weakest of the three
#9
Sort of I guess, XT is significant faster but then a completely different chip really.

If you are into overclocking you probably get more for your money with the GT than the Pro as they are essentially the same card, just different clock speeds, although remember overclocking is never guaranteed and they may have been binned at a slower speed because that is all they are capable of. If you have any doubts about your power supply the X1950GT is likely the way to go as it will have the lowest power consumption.
#10
[FONT=Arial][SIZE=2]X1950 GT RV570 80 nm 500/600 12:36:12:8 6000 1000 256-bit 38.4 GB/s "native" CrossFire (internal bridge), HDCP (1/07)[/SIZE][/FONT]
[FONT=Arial][SIZE=2]X1950PRO RV570 80 nm 575/690 12:36:12:8 6900 1150 256-bit 44.2 GB/s "native" CrossFire (internal bridge), HDCP[/SIZE][/FONT]
[FONT=Arial][SIZE=2]X1950 XT R580+ 90 nm 625/900 16:48:16:8 10000 1250 256-bit 57.6 GB/s Uses GDDR3 (256 MiB/512 Mib) and A31 chip rev.[/SIZE][/FONT]


[FONT=Arial][SIZE=2]So the X1950 XT is fabed at 90nm and the earlier chips as 80nm is this correct?[/SIZE][/FONT]


[FONT=Arial][SIZE=2]How much faster is the XT over the pro?[/SIZE][/FONT]

[FONT=Arial][SIZE=2]Anyone know approximate power consumption for each of these?[/SIZE][/FONT]

[FONT=Arial][SIZE=2]thanks[/SIZE][/FONT]
[SIZE=2]
[/SIZE]
#11
Power consumption? ... check out this page

X1950 XTX________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 125W ²
X1900 XTX________}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}' 121W ²
X1900 XT_________}}}}}}}}}}}}}}}}}}}}}}}}}}}' 109W ²
X1900 XT_________}}}}}}}}}}}}}}}}}}}}}}}}|' 99W ^ (R580+ 256MB model)
X1950 Pro________}}}}}}}}}}}}}}}}| 66W ²
X1900 GT ________}}}}}}}}}}}}}}}}}}|' 75W ²

Note that the X1900 GT is not the same as the X1950 GT.
The X1950 GT should be lower as it's an underclocked X1950 Pro.

The 450W PSU is a recommendation of Ati.
Not necessarily needed.
#12
For interesting reading on how much power you really need check out this article...

http://legionhardware.com/document.php?id=635
An exerpt...

Quad core extreme processor, two Nvidia 8800 GTX's in SLI, four 320GB HDD, four 1GB DDR2 memory modules and six 120mm case fans as well as a water-cooling system. Even with all this high-end hardware installed they were only able to generate a maximum power demand of 530 watts!

So how much power do we really need?
#13
thanks Animons, some great information there. I'll have a read.
#14
tgbyhn10 - the 1950gt and 1950pro based on RV570 are actually newer chips, they are a redesign on the R580 with a reduced number of shaders but the added native crossfire bridge. The small process node should lead to a reduced power consumption as is shown by animons (thanks - nice graph!) - my guess is the X1950GT will only consume around 60W or less at default clocks.

One important, often overlooked thing to consider when deciding how much power is actually needed is that PSUs have an efficiency curve - that is, they are less efficient at low and very high outputs than there optimal efficiency (usually around 2/3rds rated output). What this means if you continuously draw about 270W on a PSU rated at 300W it is likely the PSU is working very hard and beyond its optimal efficiency, which in turn leads to excess heat for the PSU to dissipate. There are some PSUs that have been designed to work continuously at their rated output - the ones in Shuttle systems spring to mind, but your typical generic £5 300W PSU will generally be designed to only offer this as a peak output.
#15
jah128
What this means if you continuously draw about 270W on a PSU rated at 300W it is likely the PSU is working very hard and beyond its optimal efficiency, which in turn leads to excess heat for the PSU to dissipate. ... your typical generic £5 300W PSU will generally be designed to only offer this as a peak output.


Yeah. Never skimp on a PSU.
It's one of the most important (if not THE most important!) component in terms of system stability, esp. if you are overclocking.
#16
Thanks Jah128 and Animos

Will the PSU below be ok with this sytem? Not too underpowered or overpowered?

Thanks

Gigabyte GA-965P-DS4
Intel Core 2 Duo E4300 1.86ghz overclocked to 3ghz
Seagate 7200.10 320GB SATAII/300 8.5ms 7200RPM 16MB Cache - OEM
WD Caviar 60GB drive
Microsoft Windows Vista Home Premium x32Bit OEM 1PK DVD
Sapphire X1950Pro 256MB GDDR3 DVI TVO HDCP PCI-E Graphics Card
2 x Corsair (CM2X1024-5400C4) 1024MB, DDR2-5300/5400 (667/675MHz)
CASE ASONIC XCLIO Server case 5X5.25 6X3.5 2xfloppy
OCZ Stealthxstream 600Watts
1 x Lite-on 16 X DVD-ROM SHD-16P1S
1 x Lite-on DVD-Writer SHM-165P6S

Power supply is:
OCZ 600W StealthXStream Power Supply

Designed for the value-minded gamer seeking simple, quiet performance, the StealthXStream includes OCZ’s acclaimed reliability and feature-sets with a lower price point. Ideal for system builders and enthusiasts who prefer a low-key PSU, the StealthXStream focuses on performance, quality, and quiet operation. Even at peak loads, the 600W StealthXStream remains virtually silent and excludes flashy LEDs ensuring the power supply is not seen or heard.
The StealthXStream is kept supremely cool with a large 120mm fan features a standard ATX power supply form factor resulting in a compact footprint to accommodate virtually all computer towers. With a sustained output of 600W and four +12V rails to provide uniform distribution of power, the StealthXStream is well-suited for and driving today's higher end systems. The rock solid StealthXStream is built to provide sufficient output to power dual GPU and CPU platforms, complete with two PCI-Express cables and a 4/8 CPU auxiliary connector which are wrapped in a flexible mesh promoting a tidy environment inside the case.
Technical Details:

ColourBlackConnectors1 x 20+4Pin ATX, 1 x 4-pin/8-pin CPU, 2 x PCI-E, 6 x 4-pin peripheral, 2 x 4-pin floppy, 6 x S-ATA Dimensions150 x 140 x 86mm FansInternal 120mm fan FeaturesOCZ PowerWhisper Technology Mtbf100,000 hours PfcActiveVoltage100~240Vac 10-5A 50/60Hz Warranty3 year warranty backed by OCZ’s exclusive PowerSwap
#17
tgbyhn10, having read the aforementioned articles, IMHO this would be more than enough.
Quite futureproof too, I might add
#18
£29.97 at PCWorld in-store today!
#19
withabix;1431972
£29.97 at PCWorld in-store today!

Thanks I just picked one up from PC World for £29.97, been trying to find the original thread that you posted, but cant find it, any ideas?
#20
Howdie;1438618
Thanks I just picked one up from PC World for £29.97, been trying to find the original thread that you posted, but cant find it, any ideas?

What is the exact model / product code of the one you picked up? I couldn't find the GT is it that one?
Thanks

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