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With Ice Lake, Intel simplified the overall design considerably. The biggest change comes from the fact that most of the Titan Ridge logic has been integrated into the Ice Lake SoC itself, reducing board space, routing, and the overall [[bill of materials]]. Instead of the seventeen lanes that were required by the Titan Ridge controller, Ice Lake exposes just eight lanes – four lanes to each [[retimer]] which drive the signals to the connectors. Therefore, in total there are just eight lanes operating at 20 GT/s instead of seventeen lanes operating at 8 GT/s (note that number includes the 8.1 GT/s DP links). The reduction of lanes, along with their associated components such as the buffers, reduces the overall power consumption of the system. Intel stated that, depending on the exact device design, they saw a reduction of up to 300 mW per port when the port was fully utilized. Previously, the dual-port Titan Ridge controller had a TDP of up to 2.4 W, so the overall saving is fairly sizable. The additional power saving thus translates to better performance as more of the overall power budget can be allocated for the GPU and CPU instead of the I/O.
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With Ice Lake, Intel simplified the overall design considerably. The biggest change comes from the fact that most of the Titan Ridge logic has been integrated into the Ice Lake SoC itself, reducing board space, routing, and the overall [[bill of materials]]. Instead of the seventeen PCIe lanes that were required by the Titan Ridge controller, Ice Lake exposes just eight lanes – four lanes to each [[retimer]] which drive the signals to the connectors. Therefore, in total there are just eight lanes operating at 20 GT/s instead of seventeen lanes operating at 8 GT/s (note that number includes the 8.1 GT/s DP links). The reduction of lanes, along with their associated components such as the buffers, reduces the overall power consumption of the system. Intel stated that, depending on the exact device design, they saw a reduction of up to 300 mW per port when the port was fully utilized. Previously, the dual-port Titan Ridge controller had a TDP of up to 2.4 W, so the overall saving is fairly sizable. The additional power saving thus translates to better performance as more of the overall power budget can be allocated for the GPU and CPU instead of the I/O.
  
 
One of the other benefits of the Thunderbolt 3 integration is that half of the lanes can be exposed to each side of the device. With the Titan Ridge controller, offering Type-C ports on the side further from the controller was more complex and was quite rare and most OEMs simply opted to offer a legacy connector of some sort such as a USB 2.0 on that side. With Ice Lake, the direct Thunderbolt lanes that go to each retimer are easily exposed to both sides of the device, meaning, at least in theory, OEMs should have no problem offering symmetrical connections on both sides of the device.
 
One of the other benefits of the Thunderbolt 3 integration is that half of the lanes can be exposed to each side of the device. With the Titan Ridge controller, offering Type-C ports on the side further from the controller was more complex and was quite rare and most OEMs simply opted to offer a legacy connector of some sort such as a USB 2.0 on that side. With Ice Lake, the direct Thunderbolt lanes that go to each retimer are easily exposed to both sides of the device, meaning, at least in theory, OEMs should have no problem offering symmetrical connections on both sides of the device.

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codenameIce Lake (client) +
core count2 + and 4 +
designerIntel +
first launchedMay 27, 2019 +
full page nameintel/microarchitectures/ice lake (client) +
instance ofmicroarchitecture +
instruction set architecturex86-64 +
manufacturerIntel +
microarchitecture typeCPU +
nameIce Lake (client) +
pipeline stages (max)19 +
pipeline stages (min)14 +
process10 nm (0.01 μm, 1.0e-5 mm) +