iGame GTX 1080 Ti KUDAN: The King of Custom Cards
There are cards that I would like to test and there are cards that I would love to test. KUDAN is one of the most expensive and hardest to find graphics cards in the world. It took me few months to convince Colorful to send one of these cards for this review. Two weeks ago, the package arrived. No marketing materials were provided for this review, no one told me what to do with this card and how to test it. This review is my take on the KUDAN series. 
Let’s start with the basics. This model is Colorful’s fastest graphics card (ever made). It was released few months after Founders Edition and it is only available in China (if you are lucky to find it). This card is very expensive, it costs around 1599 USD, that’s more than twice as much as GTX 1080 Ti FE.
The iGame 1080Ti Kudan comes with Pascal GP102-350 GPU packed with 3584 CUDA cores. KUDAN ships with 11 GB of Micron GDDR5X memory across 352-bit interface.
| AT A GLANCE | ||||
| 16nm GP102-350 | 3584 | 11GB G5X 352b | 1658 / 1785 MHz | 1599 USD |
| GRAPHICS PROCESSOR | CUDA CORES | MEMORY CONFIGURATION | BASE / BOOST CLOCK | PRICE |
There are manufacturers who guarantee 2025 MHz clocks for overclocking. KUDAN ships with this frequency out of the box. Of course, don’t just take my word for it, take a look at the following chart listing the fastest GTX 1080 Ti models from all major manufacturers and later in this review, detailed frequency analysis.
| THE FASTEST GEFORCE GTX 1080 TI PER MANUFACTURER | ||||
| COLORFUL iGame KUDAN ? | 1652 MHz | 1785 MHz | 1376 MHz | |
| GALAX HOF Limited Edition | 1645 MHz | 1759 MHz | 1376 MHz | |
| ZOTAC AMP! Extreme | 1645 MHz | 1759 MHz | 1401 MHz | |
| AORUS Xtreme Edition | 1632 MHz | 1746 MHz | 1431 MHz | |
| ASUS ROG Poseidon | 1620 MHz | 1733 MHz | 1387 MHz | |
| INNO3D iChill X4 Ultra | 1607 MHz | 1721 MHz | 1425 MHz | |
| MSI Lightning Z | 1607 MHz | 1721 MHz | 1390 MHz | |
| PALIT GameRock Premium | 1594 MHz | 1708 MHz | 1376 MHz | |
| EVGA Kingpin | 1582 MHz | 1695 MHz | 1376 MHz | |
| BASE CLOCK | BOOST CLOCK | MEMORY CLOCK | ||
KUDAN does not have three or four 8-pin power connectors. There is no need. Two connectors are more than enough to fit into NVIDIA’s power limits. By default, it has a TDP of 330W.
The clock speeds of 1652 and 1785 MHz (base and boost respectively) are the highest clock speeds for custom GeForce GTX 1080 Ti.
| Colorful iGame GTX 1080 Ti KUDAN Specifications | ||||
|---|---|---|---|---|
| VideoCardz.com | GeForce GTX 1080 | GeForce GTX 1080 Ti | iGame GTX 1080 Ti KUDAN | Radeon RX Vega 64 |
| Fabrication Process | 16nm FinFET | 16nm FinFET | 16nm FinFET | 14nm FinFET |
| GPU | GP104-400 | GP102-350 | GP102-350 | Vega 10 XT |
| CUDA Cores | 2560 | 3584 | 3584 | 4096 |
| TMUs | 160 | 224 | 224 | 256 |
| ROPs | 64 | 88 | 88 | 64 |
| Base Clock | 1607 MHz | 1480 MHz | 1652 MHz | 1247 MHz |
| Boost Clock | 1733 MHz | 1584 MHz | 1785 MHz | 1546 MHz |
| Eff. Mem. Clock | 10008 MHz | 11008 MHz | 11008 MHz | 1890 MHz |
| Memory | 8GB GDDR5X | 11GB GDDR5X | 11GB GDDR5X | 8GB HBM2 |
| Memory Bus | 256-bit | 352-bit | 352-bit | 2048-bit |
| Power Connector | 1x 8-pin | 1x 6-pin, 1x 8-pin | 2x 8-pin | 2x 8-pin |
| TDP | 180W | 250W | 330W | 295W |
Normal BIOS vs Turbo BIOS
| Review Contents | |
|---|---|
| Page 1 | Introduction & Overview |
| Page 2 | A closer look Card Design ● Hybrid Cooler |
| Page 3 | A closer look Board Design ● LCD ● Bundle |
| Page 4 | Testing platform & methodology |
| Page 5 | GAME Battlefield 1 ● Deus Ex: Mankind Divided |
| Page 6 | GAME The Division ● Doom |
| Page 7 | GAME Ghost Recon: Wildlands ● Hitman |
| Page 8 | GAME Prey ● Rise of the Tomb Raider |
| Page 9 | GAME Sniper Elite 4 ● Witcher 3 |
| Page 10 | SOFTWARE Colorful iGameZone II tool |
| Page 11 | OVERCLOCKING |
| Page 12 | STABILITY Core Clock ● Fan Speed |
| Page 13 | STABILITY Temperature ● Noise Levels ● Power Consumption |
| Page 14 | BENCHMARKS 3DMark Fire Strike ● Time Spy ● VRMark ● Unigine Superposition |
| Page 15 | CONCLUSION |