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Rare GPUs / Unreleased GPUs

"AMD Radeon RX 5900 XT" early engineering sample Big Navi:

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All of Ampere and RDNA2 can be added to the list...
 
Red PCB HD 7990, nice. Shame the sticker was removed. Got BIOS or board dates off it yet?

Complete right, card is nearly dead, only one LED lights up when plugged in, even as second card no access to BIOS.

I saw the ES sticker bevor buying the card. Card should have a 2012 BIOS older even first release Bios of similar Firepro S10000. Asic typ is pre Malta and missing in the TPU database.
 
Since we're showing off AMD samples again, here's one I got a few days ago.

Radeon R9 290X Engineering Sample
IMG_20210120_152448468.jpgIMG_20210120_152700361.jpg290X ES PCB.JPGIMG_0268.JPGIMG_20210120_155800508.jpg



Card boots up fine and drivers auto detect it. The primary BIOS it's set to load is a fairly early UEFI from June 27th, 2013. About four months from launch. There is an even earlier BIOS, only 64K in size, from May 2013 that contains only the most basic display table requirements for Windows to recognize it as an output device. It targets a more aggressive 950MHz core clock closer to the final design, and carries the previously unseen and thought to be entirely unused 67B8 device ID. This firmware was validated for the first time here on TPU and a database entry now exists for this card here. The card features the flat black plastic shroud that's fairly common for early to mid development AMD samples in the last ten years, with only a couple hints toward what the final shroud design would look like. The PCB featured an array of physical switches for various points around the power delivery; almost all have been removed. One striking peculiarity of the PCB design is the physical CrossfireX fingers at the top. AMD did away with CrossfireX bridges with the R9 290 and R9 290X, opting for PCI-E communication with xDMA. Without another early board to test with I can't do much to determine if those connectors are functional for anything, whether it be CrossfireX or simply signal analyzing for debugging card communications. Either way it's neat to see that the familiar CrossfireX bridge wasn't officially dead with Hawaii, and the physical change came later in development.
 
Spotted some missing caps. Can't quite make out what the far right one is
Some more ripped pads across the board too :(

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Correct. You missed some, still.

Anything with pads gone was removed by an engineer. The card is still functional, with most of the missing components being simple filter caps or test switches not necessary for full operation.
 
"AMD Radeon RX 5900 XT" early engineering sample Big Navi:

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actually i feel the looks is good, with bare metal and grey color. very industrial
 
I think I have a Radeon 2600 XT in the attic. I'm not sure if it would be considered rare, but it's one of the only GPUs I've even seen to use GDDR4 instead of 3 or 5.
 
I think I have a Radeon 2600 XT in the attic. I'm not sure if it would be considered rare, but it's one of the only GPUs I've even seen to use GDDR4 instead of 3 or 5.
Nah they made a bunch. Wasn't a terrible budget card in its day.

Other cards with GDDR4: X1950 XTX, X1950 Crossfire, HD 2900 XT, HD 3870, FirePro V8650, V8600, V7700, V5600, and of course your 2600 XT.
 
+ Jetway X1950Pro GDDR4, Unika HD3850 GDDR4, Powercolor and Unika 3870x2 GDDR4, Powercolor HD4850 DDR4
 
I think a current gen GPU would be a candidate for this thread :laugh:
 
I think a current gen GPU would be a candidate for this thread :laugh:

here ya go :rolleyes:

Sorry no 3070, they arent worth the extra $100 over a 3060ti, price/performance is not in line
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Zotac GTX570 Extreme 2560MB
Sadly sticker got ruined while cleaning
uP6218 8phase > 4x uP6275AD > 8x uP6282AD running this 16phase
MDU1514 HS > MDU1517 LS. 64 MOSFETS total for core alone
Empty pads for various Dip switches: OCP_SW, OV_SW1, OV_SW2, PWM_CLK_SW, M_V_SW, PEX_SW
ASIC 70.0% does 1000MHz core at roughly 1.25v, memory starts having issues at 2200MHz
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Hello everyone,

I have a few more items to share in the hopes of motivating myself to get around to thermal testing the next round of coolers that I discussed previously.

First off I acquired an engineering sample HD3870 X2 to go with the non-qualification sample HD3870 that I posted earlier.
PXL_20210409_041021785.jpg
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I also picked up a 7800 GTX 512MB which was a very short lived flagship that I've been after for awhile. Boy does it need a good dusting.
PXL_20210409_041540281.jpg
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Lastly I acquired two coolers that I consider groundbreaking in the history of GPU cooling. I plan to run some tests with both, a stock 3870, and the vapor chamber 3870 that I posted earlier but man its going to be a lot of work especially with different fan configurations.
PXL_20210409_041637159.jpg PXL_20210409_041646508.jpg
 
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Hello everyone,

I have a few more items to share in the hopes of motivating myself to get around to thermal testing the next round of coolers that I discussed previously.

First off I acquired an engineering sample HD3870 X2 to go with the non-qualification sample HD3870 that I posted earlier.
View attachment 195893View attachment 195894

I also picked up a 7800 GTX 512MB which was a very short lived flagship that I've been after for awhile. Boy does it need a good dusting.
View attachment 195895View attachment 195896

Lastly I acquired two coolers that I consider groundbreaking in the history of GPU cooling. I plan to run some tests with both, a stock 3870, and the vapor chamber 3870 that I posted earlier but man its going to be a lot of work especially with different fan configurations.
View attachment 195897 View attachment 195898
This are history pieces (at least for me, 3870 was the 1st GPU I bought :))
 
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