Advice for an Iray PC 2023

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  • SnowSultanSnowSultan Posts: 3,596

    It's Best Buy for the US and Scan for the UK, not sure where the rest of the world ship from. They're popular because they're cheap, work well and don't look like a UFO crashing into a barn so they do tend to sell out quite quickly.

    LOL, yeah some of these really go overboard with the gamer look. As much as I'd like to make a pretty PC, my gigantic case faces a wall and all I'm going to see is a blue glow on drywall.

    I noticed that the FE cards only appear to have one large fan while the off-brands usually have three. Do you happen to know anything about the differences in cooling and ventilation between them? Thanks again for the help.

  • oddboboddbob Posts: 396

    SnowSultan said:

    It's Best Buy for the US and Scan for the UK, not sure where the rest of the world ship from. They're popular because they're cheap, work well and don't look like a UFO crashing into a barn so they do tend to sell out quite quickly.

    LOL, yeah some of these really go overboard with the gamer look. As much as I'd like to make a pretty PC, my gigantic case faces a wall and all I'm going to see is a blue glow on drywall.

    I noticed that the FE cards only appear to have one large fan while the off-brands usually have three. Do you happen to know anything about the differences in cooling and ventilation between them? Thanks again for the help.

    The 3090 and 4090 FE have two large fans and a short v shaped circuit board. The fan nearest the back of the case sucks from the bottom and blows out the back like the blower design on older cards and current pro cards which expect to live in a wind tunnel. The fan nearest the front blows though the v at the back of the card where there are fins connected to heatpipes which are connected to the GPU chip and the vram.

    On the three fan cards typically the first two fans blow onto the board leaving your case fans to extract the hot air and the third typically blows through or partially through. The circuit boards for all  4090 cards are tiny in comparison to the size of the cooler.

    The pass through fan is pointing at the ram sockets but in real world use it doesn't make any difference if you have a case with reasonable ventilation.

    The FE is a solid choice if you happen on one at MRSP, they run at upto 10c hotter than the best three fan cards at 450w but still well within limits. They're popular with overclockers and water cooling types because they have good quality parts, a generous upper power limit  and a physically small board with the power connector in the centre which allows for very small full enclosure water blocks.

    In DS you're going to be doing about 300 watts on a cooler that can cope with 450 plus. Any 4090 can do that with the caveat that you need to be getting air in and out of the case. I've run a 3090FE in a huge case and a tiny case and the internal volume just extends the length of time before it becomes a hotbox and warms everything inside equally. With reasonable airflow in and out it won't be an issue.

     

  • outrider42outrider42 Posts: 3,679

    My 3090 Founder's is pretty nice. I wouldn't hesitate to buy the Founder's 4090 if I had the cash to do so. It is actually one of the smaller 4090s, too, which is crazy but true. Another thing I notice with my 3090 is the total lack of GPU sag. As large as this thing is, it is perfectly straight on my motherboard. Most large GPUs will start to sag over time, and some extremely large ones might even damage the pcie bus by bending pins over a long period of time. Sag is not typically a problem, but these 4090s are so freakin massive that sag might be an issue. This is yet another point in favor of the FE. It has a cooler that has support all the way around the card, and whether intentional or not, it prevents sag. The 4090 FE is larger, so I cannot say for sure that the 4090 will not sag, but I feel it will do better than most other designs. Of course, you can also just use a stand to hold the card up. These new cards are so big that GPU stands are becoming a thing.

    EVGA was my go to brand for GPU, but they stopped making them. Otherwise I would get them and buy their amazing extended warranty (10 years!!!). But without EVGA around, and the Founder's having genuinely good quality, I do not see any reason to get a different 4090.

    We have proof in the benchmark thread that the 4090 is using less power to render while rendering faster. So yeah, it should be quieter. My 3090 is already decently quiet when rendering, and the 4090 has a better cooler on it. Even in a lot games the 4090 is not using as much power as advertised. It is remarkably efficient.

    The Iray dev team did say in a post that they were working on the 4000 series optimization, so there could be a little more performance coming to 4000 cards than they already have. Maybe, I wouldn't count on this, but I thought I would mention it.

    If anybody is not in a hurry, perhaps it is not a bad idea to wait a little. The GPU market is crashing. At some point something has to give. Microcenters are offering $100 Steam gift cards to 4000 series buyers, even on the brand spanking new 4070. None of the last 3 Nvidia products have sold out at launch! The 4070 still has yet to get through its launch day stock. So we might see some price drops. Or maybe we might even get a small refresh that boosts some specs later this year. Who knows what might happen, but something has to happen, this cannot continue. GPUs are collecting dust on shelves and stores are not happy.

    SSDs are also dropping in price, too. So again this might be a time to hold out for better deals. 

    Of course, if you need to build now, well, do so. Look out for deals, some things might be on sale at different places. If you live near Microcenter, like I said you can get a $100 Steam gift card. If you don't game, sell the gift card to a friend who does for $75 or $50, LOL. You'll make their day and pocket a little cash.

  • BobvanBobvan Posts: 2,652
    edited April 2023

    This is definately the 1st build / card that has had a significant decrease with render times.

    Post edited by Bobvan on
  • ShimrianShimrian Posts: 533
    edited April 2023

    If you're buying in the the US, I'd check out centalcomputer.com. Admittedly, this is coming from someone that used to live in the bay area for quite a while, but I've seen them recommended from people on the east coast and I've bought systems from them that have held up for many years (tho I upgraded graphics cards). You can pretty much customize your system from case to the brand of your memory. They've been a storefront for computers since the 90s in the bay area and know how to build gaming/graphics computers. You can also buy the parts and have them ship to you, but I'm lazy and think it's worth it to have them put the system together for you to save you time. 

    Post edited by Shimrian on
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