The IGP Chronicles Part 3: NVIDIA's GeForce 9300
by Anand Lal Shimpi & Gary Key on October 15, 2008 12:00 AM EST- Posted in
- Motherboards
A New Graphics Core
With a smaller manufacturing process, NVIDIA could cram more into the GeForce 9300. While the 80nm GeForce 8200 and 8300 featured 8 SPs, the GeForce 9300 and 9400 have twice that: 16 stream processors. Compared to discrete cards this isn't much of course; the table below shows how the GeForce 9300 stacks up to NVIDIA's own discrete solutions:
| NVIDIA GeForce 9300 | NVIDIA GeForce GTX 260 | NVIDIA GeForce 9800 GT | NVIDIA GeForce 9600 GSO | NVIDIA GeForce 9500 GT | NVIDIA GeForce 9400 GT | |
| Shader Processors | 16 | 192 | 112 |
96 |
32 | 16 |
| Core Clock | 450MHz | 576MHz | 600MHz | 550MHz | 550MHz | 550MHz |
| Shader Clock | 1.2GHz | 1.242GHz | 1.5GHz |
1.375GHz |
1.4GHz | 1.35GHz |
Yeah, integrated graphics still pretty much sucks for any real gaming. What we want is at least 9500 GT class of performance, and what we're getting is something below a 9400 GT (once you factor in memory bandwidth limitations). Compared to other IGPs however, NVIDIA has finally closed the gap between itself and AMD's 780G. Look at the specs:
| AMD 790GX | AMD 780G | Intel G45 | Intel G35 | NVIDIA GeForce 9400 | NVIDIA GeForce 9300 | NVIDIA GeForce 8300 | NVIDIA GeForce 8200 | |
| Graphics | Radeon HD 3300 | Radeon HD 3200 | GMA X4500 |
GMA X3500 |
GeForce 9400 mGPU | GeForce 9300 mGPU | GeForce 8300 mGPU | GeForce 8200 mGPU |
| Core Clock | 700MHz | 500MHz | 800MHz | 667MHz | 580MHz Core / 1.4GHz Shader | 450MHz Core / 1.2GHz Shader | 500MHz Core / 1.5GHz Shader |
500MHz Core / 1.2GHz Shader |
| Shader Processors | 8 (5-way) | 8 (5-way) | 10 |
8 |
16 | 16 | 8 | 8 |
| Full H.264/VC-1/MPEG-2 HW Decode | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes |
While AMD can crank through a peak of 40 instructions per clock, that's very much a best case scenario figure. NVIDIA should have no problems retiring 16 instructions per clock and with its SPs running at 2.4x the speed of AMD's in the 780G, NVIDIA should not only be able to equal AMD's performance but surpass it in most games.
As we saw with the GeForce 8200 and 8300 series, the only difference between the 9300 and 9400 are clock speeds (450MHz/1.2GHz vs. 580MHz/1.4GHz). And just as we saw with the GeForce 8200/8300, we had no problems overclocking our GeForce 9300 to 9400 clock speeds. The 9300 will be the chipset to look at; the 9400 is simply a way of getting more money out of the consumer.
Dual-Link DVI is supported so 2560x1600 is available... but only if the board manufacturer supports it. The ASUS board we tested with does not support DL DVI unfortunately. DisplayPort and standard VGA are also supported, making for a very nice array of output options on the I/O plane:
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cghebert - Wednesday, October 15, 2008 - link
Hey guys,Great to see the articles are up. A couple of quick questions and a comment.
Could you mention clearly what nvidia driver versions (both graphics and HDMI) you used for the tests?
Also, you seem to hint that 5.1 audio is an option with this newest driver set from nvidia. Is this indeed the case?
Also, to echo the comments of some others, it would be nice to see the blu ray playback numbers with cheaper cpus. I have seen the Athlon X2 BE (2.3 ghz) going for less than $40, and even a 3 ghz X2 for $75 or so, which would certainly make buying a cheap discrete graphics card a viable option cost-wise.
nvmarino - Wednesday, October 15, 2008 - link
>>Unfortunately, as we've mentioned before, there is no support for bitstreaming Dolby TrueHD or DTS-HD MA; you'll need to wait until sometime next year before you get full support there.Hmm - does that mean the hardware is there in THIS chipset but we nned to wait for driver/bios updates!?!?!?!? Or are we talking about a new chipset?
Anand Lal Shimpi - Wednesday, October 15, 2008 - link
Sorry for the confusion, absolutely none of the current chipsets (G45, 780G, GF8200, GF9300) support or will support bitstreaming TrueHD/DTS-HD MA. Next year we will see the first GPUs with actual support for this.8-channel LPCM is the best you'll get for now.
-A
3DoubleD - Friday, October 17, 2008 - link
Isn't LPCM the best you can get anyway? Your Blu-ray decoder (Eg. PowerDVD, standalone Blu-ray player) decodes the audio stream (the best available) and sends that audio to your stereo via PCM. Some Blu-rays even have the LPCM stream raw on the disc. Why would you ever want/care about TrueHD/DTS-HD MA streaming when you are already getting perfect, lossless 7.1 audio to your speakers?Source: http://www.highdefdigest.com/news/show/1064">http://www.highdefdigest.com/news/show/1064
nvmarino - Wednesday, October 15, 2008 - link
Hybrd power was one of the more compelling features of this chipset for HTPC use - I want my box sipping as little juice as possible untile game time. Unfortunately, all the reviews I've read so far and this Nvidia page:http://www.nvidia.com/object/hybrid_sli_desktop.ht...">http://www.nvidia.com/object/hybrid_sli_desktop.ht...
seem to indicate Hybrid Power is NOT a feature of the new chipset. I read the comment earlier about it being up to board manufacturers to implement but the page linked above seems to indicate the chipset itself lacks support. Can you guys please confirm?
sascham - Wednesday, October 15, 2008 - link
I've been holding off buying my new rig for 3 months just for this feature. I'm on 100% solar power and although I can still run my current rig that draws more power than a newer one will, any savings I can make are worthwhile (and give me more scope elsewhere).All the reading I did months ago suggested this chipset would deliver Hybrid Power with Intel CPU. What's the official word on this? If, as the nvidia page linked suggests, this chipset does not deliver this, what's next? When do we get it?
Mr Roboto - Wednesday, October 15, 2008 - link
I'm not the brightest crayon on the box when it comes to tech but couldn't a company just solder on a decent chip and forget this whole IGP nonsense? Like take an Nvidia 9500 or 9600 chip and solder it right on to the board along with 128MB DDR RAM. You'd have you're reasonable gaming performance without suffering through the 9300 which looks to be nothing extraordinary. Couldn't they cool it with standard HSF?Seems to be a lot of effort for little reward.
sprockkets - Wednesday, October 15, 2008 - link
There would be little room for it, unless you gave up say two slots. Chaintech did this years ago, cool motherboard, but ran very hot. Suffice to say, no one bothers with it anymore. You might as well just add the memory like side port but a seperate chipset and graphics chip? Only works well in laptops.Calin - Thursday, October 16, 2008 - link
You're not saving so much money over a discrete video card (you still need everything a video card have), and you can't "upgrade" (yes, you can add another video card and disable the onboard one, but you can't have your cake and eat it too).3DoubleD - Wednesday, October 15, 2008 - link
Sounds great. Now all we need is a follow-up of the HD 4xxx article as well as confirmation about whether or not these Nvidia issues are solved or will be solved shortly.I'm really enjoying these HTPC based articles and hope you continue them. Now that the HDMI + 7.1 audio issue has finally been addressed I think it would be helpful to start looking into the software end of HTPCs, such as a Media Center software review (what programs that work well, include blu-ray playback, OTA support, network features, ect).
There are tempting systems such as the FuzeBox Media Server http://www.velocitymicro.com/wizard.php?iid=167">http://www.velocitymicro.com/wizard.php?iid=167 , which includes a seamless interface for Cablecard capture, blu-ray playback, multizone playback, expandable storage, network backups). The interface locks the user from exiting the media center interface, but provides a reliable, seamless, and feature rich experience that I have yet to experience with other media centers. The enthusiast looks at the price tag for such a machine and says, I can build that for half, except that the media center software isn't there. Help us enthusiast achieve that seamless experience without having to empty our pockets for pre-assembled box!
Thanks