NVIDIA's GeForce GT 430: The Next HTPC King?
by Ryan Smith & Ganesh T S on October 11, 2010 9:00 AM ESTPower, Temperature, & Noise
We only have 1 GT 430 card on hand, so unlike past articles we cannot compile any data on the load voltages of this line of cards. Our lone Asus card has a load voltage of 1.08v, and an idle voltage of 0.88v. Idle clocks are 50.6MHz for the core, and 270MHz effective for the memory.
While GT 430 may not be competitive on a performance-per-dollar basis, it’s hard to argue with these power results. Even at these low wattages where our 1200W power supply isn’t very efficient, the GT 430 still delivers an idle power consumption level 7W under the Radeon 5570, and an even larger 11W advantage over the otherwise performance-superior Radeon 5670. We can’t measure the card’s actual power consumption and NVIDIA does not provide a reference level, but the GT 430 can’t be drawing more than a couple of watts here.
Under load things are less rosy for the GT 430. Under Crysis it ends up drawing 10W over the 5570, which serves as yet another testament to the amazing level of performance-per-watt that AMD has been able to attain; remember that the 5570 had better performance at the same time. Under Furmark the situation is just as bad, but at this point we’re looking at a more pathological case. Overall 10W isn’t going to break the bank in an HTPC (especially since these cards would rarely get up to full clocks in the first place) but it’s something to consider if every watt is going to count.
When it comes to idle temperatures, the GT 430 is second to none. With the card only consuming a couple of watts at idle in the first place, its idle temperatures are barely above room temperature (and even closer to ambient case temperatures). It’s tied with the GTS 450, which impressed us last month with its highly capable cooler. Meanwhile our 5570, which is a low-profile card just like the GT 430, ends up being a good 10C higher. AMD’s higher idle power consumption directly translates to a higher idle temperature.
Looking at load temperatures, these results aren’t all that surprising given the cooler in use. The Asus cooler is practically a passive cooler, as the small fan is not capable of moving much air (though it is unusual to not see Asus aggressive on cooling). As a result it manages to reach higher temperatures, but we’re still only talking about 60C under Crysis and 72C under Furmark. This is worse than the 5570 and its larger fan by a bit, but not significantly so.
At idle the GT 430 is consistent with our other cards. With the exception of a couple ridiculous cards like our GT 240 and in this case the 5570, everything is at roughly 42-44dB(A). The 5570 is more fan than heatsink, which is likely why it has such a poor showing here compared to the GT 430.
The payoff of accepting higher temperatures is less noise to contend with. The GT 430 never needs to ramp up its fan in our tests, delivering a load noise level even lower than the GTS 450, and only worse than a GT 220 that runs up against ambient noise levels. If you want to make a good HTPC card then it needs to be silent, and Asus/NVIDIA have delivered on that here. It’s not quite silent since it’s not passive, but it’s about as close as one can reasonably achieve. It’s also noticeably better than the 5570, a card which is by no means noisy. If noise is a primary concern then the GT 430 is a very good candidate for a HTPC.
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Spazweasel - Monday, October 11, 2010 - link
I think something very important is being missed in reviews of cards evaluated for HTPC use: the effects of the form factor of a case.Many HTPCs are in low-profile desktop-style chassis in an effort to visually integrate with the rest of home theater gear. Examples: Antec MicroFusion, nMediaPC HTPC 1080P, Lian Li PC36. These cases cannot accept standard-height cards, and must use low-profile-compatible (half height) cards. Additionally, the low profile of the cases severely inhibits airflow, which renders "open bench" and "inside a cavernous full tower case" thermal and acoustic testing largely irrelevant.
There are also HTPC cases which accept standard-height cards but are only barely tall enough to accommodate those cards, also impairing airflow, and are thus good test targets. Examples: nMediaPC HTPC 1000, Antec Fusion.
Therefore I suggest the following be added for consideration in any card which is ostensibly intended for an HTPC build:
1. Is the card available in low-profile designs?
2. For a given manufacturer's entry, is the low-profile bracket included?
3. Thermal testing and acoustic testing on low-profile cards performed in a low-profile case with all panels in place
4. Thermal testing and acoustic testing on standard-height cards performed in a case that is exactly as tall as a standard PC card, i.e. Antec Fusion, also with all panels in place.
5. Please report card-length. HTPC and other compact cases often have an issue with this.
Thanks very much!
ganeshts - Monday, October 11, 2010 - link
Thanks for the pointers. We will keep these in mind for future GPU reviews.1. Yes, the card is available in low profile designs, but it is dual slot because of the heat sink.
2. I only have a nV reference card, but Ryan has the Asus one. I will ask him about questions 2 - 5.
blastingcap - Monday, October 11, 2010 - link
"advertized"??AznBoi36 - Monday, October 11, 2010 - link
Come on AMD/Nvidia. Give us a cool running, low profile gaming card that is capable of playing games at 1080p and I'll buy it.Spazweasel - Monday, October 11, 2010 - link
Have you seen the PowerColor AX5750? It's a Radeon 5750-based card, 1gb DDR5, which is low profile. As far as I know, that's the most oomph you can get in a low profile card at present. 1080p gaming on a single 5750 would be marginal, near 30fps for moderate settings on most modern games, but if you can deal with that or don't mind pushing the sliders a bit to the left it may be doable. All depends upon your requirements. Sliders slammed to the right and 8x antialiasing? Not gonna happen :)If you need more, you can always try a Crossfire rig. In a low profile case that would be thermally brutal, however, and given that the PowerColor AX5750 uses a dual-fan cooling rig that does not exhaust out the back, two of them in a low-profile case might just be too much.
The good news is that the 5750 doesn't draw much power. Guru3D had a test that showed a 5750 Crossfire rig peaking at 401 watts, and that's with a much beefier CPU/motherboard setup (Core i7/965 OC to 3750mhz) than you would see in a typical HTPC rig. With something gentler like a standard-clocked Core i5 or Core i3, or a Propus 620e, you probably will never exceed 350 watts in a Crossfire setup, so you can stick to 450-500 watt PSUs in complete confidence for a pair of 5750. For a single 5750, a 350-400 watt unit (example: Antec's 380-watt PSUs that come with some of their cases) would be just fine.
fuzzymath10 - Monday, October 11, 2010 - link
I'm using the Powercolor 5750 Low Profile in an NSK1480 and that size of case is probably about as small as you'd want to go for gaming before stuff gets too hot and/or noisy. These cases often don't have the 6- and 8-pin power connectors you often need and dangling too many off molex adapters is a bit risky.However, it does run at good temps and quietly even overclocked from 700/1150 to 865/1265 and after slowing down the fan. It probably helps that I have two Noctuas, two Scythe S-flexes, and a very undervolted Q8200.
Spazweasel - Monday, October 11, 2010 - link
As far as case volume is concerned, I think the SFF form-factor companies like Shuttle are producing are actually smaller. But because those cases are taller and blockier, air has room to circulate over the top of cards; also, big noisy fans are more acceptable in an SFF gaming porta-rig than an HTPC in which silence is golden.Also, with LP cases, putting in a card effectively creates two new isolated compartments within a case (the card reaches from motherboard almost to to contact with the top cover, and from the back of the case almost to the front edge of the motherboard along the length of the card); air on one side of the card doesn't circulate with air on the other side of the card, and you're in trouble if either of those two new compartments doesn't have a robust source of cool air.
Per Hansson - Monday, October 11, 2010 - link
Hi, I guess this card would be the same as the announced nVidia Quadro 600?Guess maybe even my current uber crappy G84GL based Quadro 570 would be almost as fast...
That's one issue I see with GF108, sure here they are touting it as a HTPC thing, not for gamers
But it's ok to sell it as a Quadro and charging €200 for it instead?
Meh
http://www.anandtech.com/show/3961/nvidia-launches...
bearson - Monday, October 11, 2010 - link
Please beware of these cards from Asus. I have a GT220 which sounds like a helicopter and according to Asus the fan speed on these cards never speeds up or slows down. This seems to be confirmed in this article by looking at the idle vs load noise data.Thanks for a great site!
Best
softdrinkviking - Monday, October 11, 2010 - link
"At $80 the GT 430 goes up directly against the Radeon HD 5570 (DDR3 & GDDR5), sale-priced Radeon 5670s, the GT 430, and even the venerable 9800GT."Shouldn't this be "...priced Radeon 5670s, the GT 240, and even..."?