Available Versions

The EVGA GTS 250 is available in no less than 9 different versions in the American region. For a complete list of each model and explanation of the model numbering system, take a look at the next page. For this application we had a choice between 3 editions- the standard edition, the Superclocked edition, and the Green edition. The Superclocked GTS 250 obviously has higher clock settings than the standard GTS 250. The Green edition refers to the generally new term “Green Computing.” While the card is a shade of green, it’s more environmentally friendly. That card is actually the slowest of the group, underclocked to use less power.

GTS 250 65nm vs 55nm

The biggest questions that come up regarding the GTS 250 surround the 65nm and 55nm differences. Is my GTS 250 65nm or is it 55nm? How can I tell the difference? As technology advances, the dies size shrinks (measured in nanometers). The smaller fabrication processes runs much cooler and are more power efficient than older processes. The first GTS 250 series came as 65nm. After Nvidia got some stiff competition from ATI, it revamped the GT200 series in response. While the the higher end cards received more focus, the GTS250 did become 55nm.

You may actually be rolling the dice with cards from another manufacturer, but EVGA created separate part numbers to identify the 55nm from the 65nm. You can use the table I have compiled below to see what part numbers are 55nm.

65nm G92 Revision A2

65nm G92

55nm G92B

55nm G92B

The sure fire way to know the fabrication size of your card is to remove the heatsink. Both 65nm and 55nm use the G92 chip.

The 65nm is Revision A2, the same chip on the 9800 GTX+ (on a new PCB). The 55nm is Revision B1 (referred to as G92B). These revisions are listed on directly on the chip.

Model Numbers

There are also 3 newer SKUs that have HDMI ports in addition to DVI. These cards drop the older HDTV 7 pin round connector in favor of HDMI 1.3 and it’s digital connnection. The HDMI spec has the ability to carry sound as well as picture, but that is moot when talking about graphics. However, if you prefer to output digital SPDIF sound through a single HDMI cable, these 3 cards include a small patch cord that goes from the card to the motherboard (your motherboard must support this, obviously). The 512MB and 1024MB Green Edition both have HDMI, as well as the versatile 55nm 512MB standard edition. That last one has D-SUB, DVI, and HDMI all on the same card.

The final set of differences between these cards is simply the clock frequencies and onboard memory. The following table contains that relevant data for the entire TR line of GTS 250 cards produced by EVGA. I prepared this table by hand using cross-checked data from various websites, press releases, and spec sheets.
Please do not reproduce it without permission.

Model DDR Core Memory Shader Size HDMI
512-P3-1140-TR GTS 250 Green Edition 512MB 675 1800 1500 55nm yes
512-P3-1150-TR GTS 250 512MB 756 2200 1836 65nm no
512-P3-1151-TR GTS 250 Superclocked 512MB 771 2246 1890 65nm no
512-P3-1153-TR GTS 250 512MB 738 2200 1782 55nm no
512-P3-1154-TR GTS 250 512MB 738 2200 1782 55nm yes
01G-P3-1145-TR GTS 250 Green Edition 1GB 675 1800 1500 55nm yes
01G-P3-1155-TR GTS 250 1GB 756 2200 1836 65nm no
01G-P3-1156-TR GTS 250 Superclocked 1GB 771 2246 1890 55nm no
01G-P3-1158-TR GTS 250 1GB 738 2200 1782 55nm no

Additional part numbers have been listed on the internet, but were not included in this table. You will never come across cards bearing the following numbers: 512-P3-1141-TR, 512-P3-1152-TR, 01G-P3-1146-TR, 01G-P3-1151-TR, 01G-P3-1153-TR, 01G-P3-1157-TR.