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Nvidia have always said that the GTX Titan and GTX Titan Black graphics cards were never released to target the gaming audience, however that hasn't stopped demanding enthusiast gamers buying them by the bucket load. As the GTX780 Ti is ‘only' equipped with 3GB of GDDR5 memory the move to ‘Titan gaming' has been the only way for a wealthy Nvidia user to double the memory count. If you want to game at Ultra HD 4K resolution – or across multiple screens then the 6GB of GDDR5 makes sense. Nvidia knew there was a gap and have recently been working with their partners to double the memory count on the older non TI GTX780.
We received two of these samples direct from the oriental Palit headquarters. Both cards feature the triple fan Jetstream cooler and have an enhanced 8 Phase PWM. We look at the hardware in more detail on the next page.
| Ref Nvidia GTX780Ti | Ref Nvidia GTX780 Palit GTX780 Jetstream 6GB |
Ref Nvidia GTX Titan | |
| GPU | GK110 | GK110 | GK110 |
| Technology | 28nm | 28nm | 28nm |
| Transistors | 7.1Bn | 7.1Bn | 7.1Bn |
| ROP’s | 48 | 48 | 48 |
| TMU’s | 240 | 192 | 224 |
| CUDA Cores |
2880 | 2304 | 2688 |
| Pixel Filrate | 42.0 GPixel/s | 41.4 GPixel/s 43.3 GPixel/s |
40.2 GPixel/s |
| Memory Size | 3GB | 3GB 6GB |
6GB |
| Texture Filrate | 210.2 GTexel/s | 165.7 GTexel/s 173.2 GTexel/s |
187.5 GTexel/s |
| Bus Width | 384 bit | 384 bit | 384 bit |
| Bandwidth | 336 GB/s | 288.4 GB/s | 288.4 GB/s |
| GPU clock speed | 876mhz | 863mhz 902mhz |
837mhz |
| Boost clock speed | 928mhz | 902mhz 954mhz |
876mhz |
| Memory clock speed | 1,750mhz | 1,502mhz | 1,502mhz |
The Palit GTX780 Jetstream 6GB is clocked at 902mhz, with a boost speed of 954mhz. Memory is held at 1,502mhz (6Gbps effective). The card has 48 ROPS, 192 texture units and 2304 CUDA cores. The 6GB of Hynix GDDR5 memory is connected via a 384 bit memory interface.
