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View Full Version : Nvidia's GeForce 6200 TurboCache: Fast Name, Slower Speed


latinmike
02-09-05, 09:44 PM
As for myself as you can see I have a PNY 6800 GT APG. but, I knew I had to post this thread for those of us that when with SLI / PCI Express sysetems as a upgrade to there old systems w/ 6200 tc cards.looking out for for my little brothers and sisters w/ 6200 TCSLI/PCI Express. With this card you need to use your system memory 512 MBs is not going to cut it and if ever I upgrade we should will make sure that I get what I pay for. Some of you will be unhappy to find out the truth but here go,s,
Call it TurboCache (Nvidia), HyperMemory (coming soon to a low-cost Ati card near you) or anything else: What's being presented here as a wonderful and innovative new technology, namely the use of system memory for graphics data, is in reality old hat. What is new is the idea of reducing the local memory on the card to cut costs, then trying to compensate for it by allocating system memory to do the job instead and selling the whole thing at full price. In "return", the buyer gets great new DirectX 9 features of the last generation. Thanks to the new and much-hyped PCI Express bus, the 3D performance is supposed to be better than anything we've seen from any previous integrated graphics solution - which isn't really the case.

The system memory's bandwidth is simply much too low to accommodate a better performing graphics solution. What good are DirectX 9 features if the cards are unable to reach playable frame rates in modern games even at the lowest quality settings - at standard resolutions?

At any rate, after the tests are done and the results are in, we can say that Nvidia's TurboCache failed to convince us. Only the 32MB version was able to offer halfway acceptable performance. It also tends to be faster than the 64MB model, which is held back by the lower memory frequency. The 16MB model, meanwhile, lags behind quite hopelessly.

Although the name "TurboCache" seems to promise performance, it turns out to be nothing more than euphemistic marketing speak. The same holds true for the memory bandwidth of 10.8 GB/s and 13.6 GB/s that Nvidia quotes for the TurboCache cards with 16MB and 32MB RAM. In reality, the bandwidth of the local memory has simply been added to the maximum throughput of the PCI Express bus (4GB/s per direction = 8 GB/s).

Finally, it is hard to understand why Nvidia chose to add the NV44 TurboCache cards to the "6200" line of cards, even though the graphics processor is distinctly different from the normal NV43 or GeForce 6200. Instead, "6100" would have been a more fitting, not to mention honest designation.

For the end user, the "TurboCache" concept only pays off if the card becomes noticeably cheaper as a result of the limited on-board memory when compared to other cards with a full memory complement. However, this is not the case at all since $79 and $99 are simply way too much for cards with just 16MB (32 Bit) and 32MB (64 Bit) of local memory.

A "real" GeForce 6200 with 128MB of video memory can be found in stores for as little as $88 (64 Bit) or $99 (128 Bit). Even if we are charitable and consider the street price, we still see no good reason to shell out $129 (Nvidia's recommended sales price) for a 64MB GeForce 6200 TurboCache card, when for $30 less you can get a fully-fledged GeForce 6200 with 128MB and a 128 Bit memory bus that is much faster to boot.

Aside from the TurboCache models, potential gamers should also steer clear of graphics cards that use a 64-Bit memory bus, such as the Radeon X300 SE or the 64 Bit GeForce 6200. Unfortunately, these cards are not always sufficiently labeled, making them hard to pick out. It's about time the card makers did something to remedy this situation.

The results turned in by unit-sales market leader Intel, or more specifically the GMA900 processor found in the i915 P/G chipset, are abysmal across the board. Its graphics performance is simply way too low to tackle modern DirectX 9 applications/games. However, if gaming isn't your cup of tea or not an issue on the system you're building, the GMA900 can still be a very decent graphics solution for simple tasks.

When putting together a new system, buyers would be well-advised to consider purchasing a slightly smaller CPU and investing the money into a more powerful graphics card instead. Also, if possible it should come with 128MB of local video memory and a 128 Bit memory bus - at least if you're planning to use the computer for a game every now and then. And doubly so if you're using a TFT display, since these only offer optimal image quality in their native resolution, usually 1024x768 or 1280x1024. So there really is not to much performance over APG, it,s just market hip to get your money, new motherbroad GPu ect.To read the whole story click here,
http://graphics.tomshardware.com/graphic/20050208/index.html
Thank you all for your feed back. I think you should let them know how you feel :eek: :eek: :eek: :cool:

Treason
02-10-05, 01:48 PM
Yes when dealing with the lowest tier video cards, whether they were the 9200SE/9200 or 5200/5200-TD and today's X300/X300SE or 6200/6200TC, always make sure you absolutely know what you're getting.

Thanks for the information and props to Toms Hardware Guide for saying it like it is.

Gentle
02-10-05, 01:56 PM
Just so everyone knows...

There is not a 6200TC in AGP form because the cache thing relies on the PCIe bus.

The 6200 is a different product.

Gentle

latinmike
02-12-05, 02:22 AM
Just so everyone knows...

There is not a 6200TC in AGP form because the cache thing relies on the PCIe bus.

The 6200 is a different product.

Gentle
no It was pc-i, SLI :cool:

latinmike
02-12-05, 02:24 AM
Yes when dealing with the lowest tier video cards, whether they were the 9200SE/9200 or 5200/5200-TD and today's X300/X300SE or 6200/6200TC, always make sure you absolutely know what you're getting.

Thanks for the information and props to Toms Hardware Guide for saying it like it is.
WHAT YOUR SAYING IS TRUE, and that,s all that I,m say make sure you get what you pay for. good job :cool:

ChrisRay
02-12-05, 03:00 AM
Actuallty the Turbocache cards could theoretically have more bandwith than the onboard memory bandwith of cheap onboard memory solutions. PCIE speeds things up quite a bit,.

Gentle
02-12-05, 01:28 PM
no It was pc-i, SLI :cool:

Latinmike...

There is no PC-I. There is PCI, or PCIx or PCIe.

The 6200TC is a PCIe card.

Gentle

jolle
02-12-05, 01:57 PM
IF there had been a huge performance leap when using PCI-E instead of AGPx8, that would mean software developers had been dumbass mofos who decided to just go ahead and slap on alot more traffic on the AGPx8 bus then it could possibly handle.. right?

But when PCI-E is mainstream enough, there might be titles showing up that would acctually use the extra bandwidth, which would mean lower bandwidth solutions such as AGPx4 and perhaps even AGPx8 would suffer penalties for being slower, partly due to lower bandwidth and partly due to the half-duplex nature of agp.

And about turbocache, its just a way to be able to sell cheaper lowend cards by slapping on less RAM on them, and using SystemRAM to fill that void..
that and ATis Hypermemory..

Auswak
02-12-05, 09:51 PM
What's the point ?

Turbo Cache technology is a low end solution and upgrade from onboard video systems and better than ATI X300SE PCI-E.

The cards are also priced accordingly, below 6200 non TC.

:)

ChrisRay
02-12-05, 11:18 PM
TurboCache is a good idea. With the PCIE bandwith will actually be superior to cheap low end graphic memory. Yes it does eat system memory.

Subtestube
02-12-05, 11:22 PM
I'm interested to know how much it'll speed up memory writebacks... at the moment the only storage one has is the framebuffer and MRTs, but with PCIe and an appropriately designed chip, you could feasibly actually start letting the GPU allocate memory and (here's hoping) give it an allowance for random writes. That would be AWESOME for non Graphics uses of GPUs. Truly, truly, awesome.

rohit
02-13-05, 07:45 AM
Well, a few benchmarx will justify the 6200TC to 6200non-TC and other competition.