Two Pcs...

I have two nearly identical PCs that are running very differently from each other.

Using 3DS Max 2012, one PC renders at about 1/3 the speed as the second.

Here are my PCs...

Both are running Win7 x64


Slow PC:

• Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor
• MSI P6N SLI Platinum LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard
• EVGA 256-P2-N761-AR GeForce 8600 GTS 256MB 128-bit GDDR3 PCI Express x16 HDCP Ready SLI Support Video Card
• 4GB DDR2 SDRAM DDR2 800 (PC2 6400)

Sample render times:
3:50
3:19
4:02


Fast PC:

• Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor
• Asus P5QPL-VM EPU
• Sapphire Radeon HD 5770 Vapor X video card 1GB GDDR5
• 4GB DDR2 SDRAM DDR2 800 (PC2 6400)

Sample render times:
8:35
8:44
8:53

The main difference between these two are the video cards, but would that make one PC render at 3x the speed as the other one?
14 answers Last reply
More about tomshardware
  1. jsbenson said:
    I have two nearly identical PCs that are running very differently from each other.

    Using 3DS Max 2012, one PC renders at about 1/3 the speed as the second.

    Here are my PCs...

    Both are running Win7 x64


    Slow PC:

    • Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor
    • MSI P6N SLI Platinum LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard
    • EVGA 256-P2-N761-AR GeForce 8600 GTS 256MB 128-bit GDDR3 PCI Express x16 HDCP Ready SLI Support Video Card
    • 4GB DDR2 SDRAM DDR2 800 (PC2 6400)

    Sample render times:
    3:50
    3:19
    4:02


    Fast PC:

    • Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor
    • Asus P5QPL-VM EPU
    • Sapphire Radeon HD 5770 Vapor X video card 1GB GDDR5
    • 4GB DDR2 SDRAM DDR2 800 (PC2 6400)

    Sample render times:
    8:35
    8:44
    8:53

    The main difference between these two are the video cards, but would that make one PC render at 3x the speed as the other one?


    3DS Max has the ability to utilize the rendering capabilities of your video card if the card is so enabled. the EVGA does and the Radeon card does not. The EVGA card is using nVidia's CUDA technology to accelerate the render. Here is more info on CUDA:

    http://www.nvidia.com/object/what_is_cuda_new.html

    ---Max
  2. But the EVGA card is in the slower PC and the Radeon is in the faster one
  3. After doing a little research I discovered that the video card makes a difference in the rendering. The Radeon is a much more powerful card (even though it's a gaming card). I guess I need to look for a good card with openGl.
  4. Max has got it. You don't need to look for a good card with openGL, you need another NVIDIA card that can accelerate your renders with CUDA cores. Maybe consider a GTX 550Ti to replace the 5770.
  5. mortonww said:
    Max has got it. You don't need to look for a good card with openGL, you need another NVIDIA card that can accelerate your renders with CUDA cores.



    So the card difference is what's causing one PC to render at 1/3 the speed?

    What NVIDIA would be good for someone on a budget? Would an entry-level NVIDIA card with OpenGL surpass the PC using the Sapphire card (the one that renders 3x faster)?
  6. Have you run any other benchmarks on the systems?

    Even superpi would give you some indication of whether there is a problem with one computer vs. the other one. It's a free download, you could try it to see if one computer has a problem vs. the other one.

    Another thought- if your app has the ability to use multiple cores there is always the possibility that one computer has some cores disabled. I have done this with my computer for testing purposes but I don't remember now how I did it. I think it was somewhere in control panel. You could check to see that both computers are set to run with all 4 cores.
  7. What kind of budget do you have for getting a new card? I suggested the GTX 550 Ti because it's in the same performance class as the Radeon 5770. Right now they go for around $130 on newegg.com. This card has 192 CUDA cores, whereas your 8600 GTS has 32.

    Replacing the 5770 with the 550 Ti will make your second pc faster than the one with the 8600 in rendering tasks.

    See max's link to understand CUDA, an NVIDIA-specific technology.

    The 5770 is an AMD card and cannot utilize CUDA.
  8. $130 is in my budget. I did some research into the GTX 550 and it looks great. But, in my research I also saw the GeForce GTX 460, which did a little better than the 550 for not much more $$$.
  9. Except, I didn't see CUDA technology on the 460. I'll probably get the 550.
  10. The gtx 460 does have CUDA cores and will be faster than the 550 ti in gaming.
  11. jsbenson said:
    But the EVGA card is in the slower PC and the Radeon is in the faster one


    Am I missing something here? In your post the PC you are calling faster has the lower rendering times. Lower times are faster.

    ---Max
  12. Max Collodi said:
    Am I missing something here? In your post the PC you are calling faster has the lower rendering times. Lower times are faster.

    ---Max



    Sorry for the confusion.

    The slower machine (longer rendering times) is the PC with the EVGA card
    The faster machine (shorter rendering times) is the PC with the Sapphire Radeon 5770
  13. Hold on everyone, I just noticed I have my numbers backwards.

    Here's what it really is...

    Slow PC:

    • Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor
    • MSI P6N SLI Platinum LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard
    • EVGA 256-P2-N761-AR GeForce 8600 GTS 256MB 128-bit GDDR3 PCI Express x16 HDCP Ready SLI Support Video Card
    • 4GB DDR2 SDRAM DDR2 800 (PC2 6400)

    Sample render times:
    8:35
    8:44
    8:53


    Fast PC:

    • Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Quad-Core Processor
    • Asus P5QPL-VM EPU
    • Sapphire Radeon HD 5770 Vapor X video card 1GB GDDR5
    • 4GB DDR2 SDRAM DDR2 800 (PC2 6400)

    Sample render times:
    3:50
    3:19
    4:02
  14. I'm getting opposing opinions about whether a better video card will make a difference. I've been told that that card won't make a difference in rendering times.

    I ran passMark on both machines. The results look very similar. Can anyone take a look and tell me if they see anything out of the ordinary?

    If not, are there any tests you'd like me to run on both PCs and then post them so we can figure out where the issue is?

    Thanks


    passMark results...

    SLOWER PC
    http://eleven.x10.mx/img/Slower_PC.gif

    FASTER PC
    http://eleven.x10.mx/img/Faster_PC.gif
Ask a new question

Read More

Homebuilt DDR2 PCS Systems