I don't suppose there's anywhere to buy that OEM GeForce GT 640 (GDDR5), is there?

[Dubb]

Looking to upgrade my silent computer, the video card cooler can only take up to a 75w card. 2GB would be nice but I can live with 1GB.

http://www.geforce.com/hardware/desktop-gpus/geforce-gt-640-oem/specifications

so the question is, what computer do I need to find a "replacement part" for?

 

[borisvodofsky]

Looking to upgrade my silent computer, the video card cooler can only take up to a 75w card. 2GB would be nice but I can live with 1GB.

http://www.geforce.com/hardware/desktop-gpus/geforce-gt-640-oem/specifications

so the question is, what computer do I need to find a "replacement part" for?

what? why do you want to buy a gt640??

 

[Ventanni]

You'd be better off getting a Radeon 7750. It's waaaaay faster for the price, and will still fit within your 75w limit.

 

[Dubb]

Probably should have mentioned:

-I don't play games
-I use CAD / 3d software and occasionally bring work home. At work we haven't bought ATI/AMD, well, ever.

If I knew that kepler quadros were coming soon I might wait for those, but since nvidia is focused on tesla that probably isn't happening soon.

 

[EliteRetard]

1-800-357-3355

xps 8500
gt 640 1gb gddr5

 

[WiseUp216]

Probably should have mentioned:

-I don't play games
-I use CAD / 3d software and occasionally bring work home. At work we haven't bought ATI/AMD, well, ever.

If I knew that kepler quadros were coming soon I might wait for those, but since nvidia is focused on tesla that probably isn't happening soon.

No games? Blasphemy!

Why does it need to be OEM?

 

[EliteRetard]

GDDR5 is OEM only.

Check the OP link for the specs, GDDR5 model is superior.

 

[nenforcer]

Or you can hope someone who purchased one wants to upgrade to a 670 or 680 and decides to sell theirs on eBay. Seeing as how new it is and how few are probably out there this would be too difficult.

There's a few Dell GT330's on eBay and lots of Mac GT 120's.

 

[WiseUp216]

The DDR5 isn't being gimped by such a low memory bandwidth?

 

[dave_the_nerd]

The DDR5 isn't being gimped by such a low memory bandwidth?

I'm not sure I understand your question.

The GDDR5 version has much higher bandwidth than the others.

 

[WiseUp216]

I'm not sure I understand your question.

The GDDR5 version has much higher bandwidth than the others.

I'm referring to 128-bit vs. 192-bit. The DDR5 card is only an 128-bit card.

Basicallly, I was asking why DDR5/128-bit was better than DDR3/192-bit and was being too lazy to Google.

 

[dave_the_nerd]

I'm referring to 128-bit vs. 192-bit. The DDR5 card is only an 128-bit card.

Basicallly, I was asking why DDR5/128-bit was better than DDR3/192-bit and was being too lazy to Google.

GDDR5 is quad-pumped, whereas GDDR3 is double-pumped.

128-bit GDDR5 @ 500 MHz Base Clock = "2GHz" memory.
128-bit GDDR3 @ 500 MHz Base Clock = "1GHz" memory.

Newegg lists "effective memory clock" instead of base clock.

It's pretty obvious from the bandwidth numbers, though, in the OP's link, that the GDDR5 version has double the memory bandwidth of the other two. (80 GB/sec vs. 28.5 and 43, respectively.) The memory clocks on that page are also probably effective clockspeeds and not base, by the looks of it.

Going by the specs, that GDDR5 640 doesn't look like too bad a card. If it runs without any additional power connectors, I'd be tempted myself.

 

[Denithor]

Go read the review, you'll understand why the OP wants the GDDR5 version.

http://www.anandtech.com/show/5969/zotac-geforce-gt-640-review-

Keep in mind, it's probably only a matter of time before one of the card makers releases a GDDR5 model anyway to the retail channel, much like the GT 240 I have in my secondary box (similarly, the 1GB DDR3 GT 240 was much, much slower at nearly everything than the version I got).

 

[KompuKare]

Go read the review, you'll understand why the OP wants the GDDR5 version.

http://www.anandtech.com/show/5969/zotac-geforce-gt-640-review-

Unknown how much better the GDDR5 would perform, but at 1.3 billion transistors it seems AMD weren't the only ones wasting transistors like crazy with 28nm. Neither the GT 640 nor the HD 7770 performs anywhere near where their transistor budget would have got them on the previous 40nm generation cards.

 

[SeanTek]

Hi everybody, I am in sort of the same boat as the OP and wanted to find this card in the GDDR5 version.

Dell sells the OEM part:
NVIDIA® GeForce® GT 640 1GB GDDR5
Part # N/A!!!

As of today, they quoted me $118.99 plus tax. Free shipping to the US. They say they have it in stock. I asked for additional information, but the information was inconclusive (i.e., the dude I was talking to, didn't have much to go with from the parts database). No pics from him were available. Other than the OP link, I found this:
http://content.dell.com/us/en/business/d/help-me-choose/hmc-nvidia-graphics-xps-dt

The specs match up. If you look at the OP link, it looks like the OEM picture supports DisplayPort, which is a requirement for me. The fan looks like nothing special.

So the big question is, is it worth it?

For $118.99, you could get a Radeon HD 7770 with rebate on NewEgg, and certainly an HD 7750. So the big thing is, is the nVidia experience "worth it", and how much faster do you think the GDDR5 version is actually going to be.

If anyone has hard benchmarks on the GDDR5 version anywhere, I'd love to see them.

 

[SeanTek]

http://www.engadget.com/2012/06/20/nvidia-geforce-gt-640-review-roundup/

Unfortunately, I just double-checked with Dell, and they gave me bad information. The original part number I posted is for a retail DDR3 version of the card. They have made it extremely difficult to get the GDDR5 version: at a minimum, you have to have a service tag for the XPS 8500, or they won't tell you the part number. I am sure that if you try hard enough, you can get it, but it would require a lot of effort and is probably not worth it.

 

[EliteRetard]

Did you call or chat with them? I have the number in my post up there...but I havn't actually tried to get the part.

 

[SeanTek]

Both, actually.

In the chat, the chat rep said that they have the part, but referred to it as "GDDR3" (red flag, but I didn't notice at the time). A couple hours later, I called Dell at the number provided in this thread, and asked to actually buy the part. The call rep there kept on saying that it was DDR3, and also said that parts used for the XPS 8500 and in general for new computers may be pulled from different stock than what they can order in the Parts department. Which is dumb, but she refused to look up or give me any other item # unless I had a service tag for the XPS 8500.



That's the graphic that I got from the sales rep, which she sent me by e-mail. So, it's not a match.

 

[taltamir]

I'm referring to 128-bit vs. 192-bit. The DDR5 card is only an 128-bit card.

Basicallly, I was asking why DDR5/128-bit was better than DDR3/192-bit and was being too lazy to Google.

stop calling "GDDR5" "DDR5" please they are completely different things.
GDDR5 btw uses triple DDR, just like DDR3. But at a lot higher clockspeed and with some other modifications.

 

[SeanTek]

Here's an update.

I tried to call Dell and get a quote. In the quote, they gave me the bona-fide item number: 320-3039. It is listed as:
320-3039
1 NVIDIA GeForce GT 640 1GB GDDR5

Now the bad news. First, I tried to get them to add an extra GT 640, but the sales guy talked at length with "the tech guys" and the tech guys/production guys said that specific part was out of stock, and in any event it seems like the XPS 8500 doesn't have an extra PCIe x16 slot so that configuration wouldn't work anyway (making them suspicious). They said that it would be basically impossible to order that GT 640 separately.

I tried to place an order for just the part 320-3039 from the Parts Department. They tried to give me A6170213, which they mapped as: GT640 PCIe 3.0 1GB DDR3 DVI VGA HDMI. I kept on saying "is this GDDR5" and they hemmed and hawed about it. It obviously looks like the PNY model that I posted about before.


In conclusion: if you really want this part, you probably have to get the $1199 XPS 8500 (ships instantly), or get the $749 + $50 upgrade version (ships in 2 weeks). Then, you have to extract the card. Not really worth it, unless you're crazy, or are willing to sell the remaining XPS 8500 on eBay! (Actually for the price, the XPS 8500 is a reasonable deal, but if you are dead-set on building your own PC, you have to deal with that aspect.)

Also, if you have a service tag, you might be able to get them to send a replacement card under warranty, and then just wait for them to bill you. But short of a service tag or buying the whole PC, it's unlikely you're going to get this.


Here's the quote:

Quote Details


Quote Number: XXXYYY706

Item Number Quantity Item Description Unit Price Extended Price
225-3297
1 XPS 8500 Fast track config21 $989.80 $989.80
317-9193
1 3rd Gen Intel Core i7-3770 processor 3.40 GHz with Turbo Boost 2.0 up to 3.90 GHz
317-9211
1 12GB DDR3 SDRAM AT 1600MHZ-2x2GB + 2x4GB
331-6146
1 Dell KB213 Wired Multimedia Keyboard
320-2519
1 Ships Fast Monitor Included
320-3039
1 NVIDIA GeForce GT 640 1GB GDDR5
421-7190
1 Dell SRV Software 1703
342-4107
1 2TB SATA 6Gb/s,7200RPM
318-1872
1 XPS 8500, Black Chassis w/19:1 media card reader
421-5693
1 Genuine Windows 7 Home Premium 64 bit, English, No Media
330-1158
1 Dell USB 6-Button Laser Mouse
430-3628
1 Integrated 10/100/1000 Ethernet
410-0547
1 Adobe Acrobat Reader
318-1677
1 16X DVD+/-RW
318-2249
1 Integrated 7.1 with WAVE MAXXAudio 4
313-6138
1 No Speaker Requested
430-4735
1 Dell Wireless 1703 802.11b/g/n, Bluetooth v4.0+LE
331-5795
1 US Power Cord
331-5886
1 Localization parts-English/French
331-6145
1 XPS localiztaoin parts (power cord, documents, ship material)
331-6149
1 SHIP,XPS,L10,FXCN,8500,DAO
410-0569
1 McAfee 11, 15 Month
331-6176
1 Dell Resource DVD with Application Backup
421-8242
1 Additional Software
421-7997
1 No PDVD
410-0450
1 Microsoft Office Starter: reduced-functionality Word and Excel w/ ads. No PowerPoint or Outlook
992-8083
1 Dell Limited Hardware Warranty, Initial Year
992-8163
1 Dell Limited Hardware Warranty Plus In-Home Service After Remote Diagnosis, Initial Year
950-3337
1 1 Year Limited Warranty
951-6340
1 Accidental Damage Service, 1 Year
950-9797
1 No Warranty, Year 2 and 3
954-1820
1 Premium Phone Support, Initial Year
412-0358
1 Soft Contracts Consumer Accidental Damage Agreement
412-0359
1 Soft Contracts Dell In-Home Hardware Agreement
988-0099
1 To activate your online backupaccount, go to Start, Programs, DataSafe Online
927-2357
1 DataSafe Online 2.0 2GB
421-4356
1 Software, DataSafe Online 2.0 2GB
* -DISCOUNT/COUPON APPL
320-9334 1 Dell 24-inch Wide ST2420L Flat Panel Monitor, Customer Install $197.99 $197.99
600-0002 1 State Environmental Fee for display 15 inches, less than 35 inches
992-2309 1 1-Year Advanced Exchange Service $0.00 $0.00

Subtotal: $1,179.79
Shipping & Handling: $0.00
Tax: $94.55
Environmental Disposal Fee: $8.00
Total Price w/Discounts: $1,282.34

 

[Dubb]

well, that sucks.

But if there's a coupon in the near future it might be reasonable. I've gotten a few monitors for free from dell by buying a discounted package system and then selling the box alone for about what I paid. At current prices though, I
don't see getting out of it with the card alone for anything near a reasonable price.

 

[SeanTek]

Lo and behold, I went to the Microsoft Store in Century City, Los Angeles, CA today, and they helped me out!

I spoke with Richard and Dorion and was genuinely impressed with their knowledge, helpfulness, and level of service. First of all, these Microsoft Stores apparently have actual nerds helping people out: people who build their own PCs and set up Diablo III parties in their spare time. We got talking about the nitty-gritty right away.

They have 8 XPS 8500s in stock that contain the GT 640 GDDR5 graphics card. The shipment literally arrived less than 18 hours ago (Saturday). I said "prove it" and they said no problem, so they unpacked the demo unit (which said GT 640 1GB GDDR5 on the side), plugged it in, bypassed the Windows 7 OOBE stuff, and went straight for the Device Manager and the nVidia System Information tool. I can confirm that I saw 1GB of "GDDR5" clocked at "2500MHz" in the System Information screen with my own eyes.

Then I said, "can I look inside" they proceeded to shut down the PC and unscrew the side of the case for me! Here is visual confirmation:











If you look at the images, you'll note that it looks almost exactly like the GT 640 OEM picture on nVidia's website. The only difference that I could tell is that the PCB is blue instead of green. Note that the GT 640 cards do not have any SLI connectors (this is the same as all other GT 640 card pictures out there).

I did not have enough time to run benchmarks, but I think they would have let me if I asked. Best of all, the price: $999 (no monitor), sans Dell bloatware. (All Microsoft Store bought PCs come with the "Microsoft Signature" experience, which means no bloatware.) If you buy a PC > $600 and are a student, they give you an Xbox 360 for free.

Ironically, had I known about this, I probably could have actually saved money modding the XPS 8500 rather than building my latest rig from scratch. Of course they didn't come in until just now so it was luck of the draw. :ninja:

The Microsoft Store apparently also has strong relationships with all of the OEMs, so I am working with the store manager to see if they can acquire just the GT 640 GDDR5 graphics card for me. They can skip all of the red tape and go straight to the people at Dell who can get this stuff. No promises, but stay tuned.

 

[SeanTek]

By the way, I did not get a really good sense of how loud or quiet the fan on the card is. As you can see, it's basically the nVidia stock fan. FWIW, however, I did not particularly notice that fan over any of the other noises of things going on in the store. It looks like the fan could be easily removed if you want an aftermarket solution. The card itself is single-slot, but if you use the stock fan, expect to need a bit more clearance.

 

[SeanTek]

I have an update!

I am typing this with my computer, which has a GT 640 GDDR5 in it as we speak.





Here are my 3DMark 11 results, with the overall 3DMark score and the underlying graphics score:
P2707 - 2451
X886 - 786
E4377 - 4177

X settings with 2560x1600 (0 3DMarks) - 475

I have an Intel Core i7 3rd gen 3770 (not overclocked).

As you can see, speeds are definitely improved over the GT 640 DDR3, but more samples should be compared. http://pcper.com/reviews/Graphics-C...40-GC-1GB-DDR3-Review-GK107-no-GK104/3DMark11 says:
P2471 - 2223
X734 - 652

So, if we are comparing, the GDDR5 about a 10% improvement in Performance mode (720p), and a 20% improvement in Extreme mode (1080p). 1080p remains definitely unplayable, but I don't think that's why people are interested in this card.

There is definitely a low, audible, steady hum from the fan when the card is on. The hum is not audible from under my desk in a medium office environment. It is unclear how audible it would be in a home/silent PC type of environment. The fan looks very "standard" however so I am sure that one could find an aftermarket heatsink and install it accordingly.

Overall, is it worth it? We'll see how much Dell is going to charge me for not returning this replacement card. :whiste:

 

[EliteRetard]

The question is, how far can you OC it? If it's like all their other GDDR5 cards, then they heavily underclock so the performance is roughly similar to the DDR3 versions. I wouldn't be surprised if you could get another 10-20% out of it on stock voltage.

Wonder how it would compare to my main gaming rig 320MB 8800GTS...