In its latest Insider Livestream, MSI detailed several aspects of Intel’s recently launched 11th generation Rocket Lake Desktop processors. The key points MSI talked about included overclocking, the adaptive boost technology, gear mode for memory overclocking and support, packet power and temps during storage and overclocking. MSI also invited Intel’s Alex Hoyos, who provided detailed information on each aspect of the 11th generation desktop CPU family.
MSI Details Intel 11th Generation Rocket Lake Adaptive Boost Tech, Gear Mode, Overclocking, Also Shows Power and Temperature Numbers
Livestream started with MSI setting up the test setup for overclocking the Intel Core i9-11900K, which includes the MSI Z590 Gaming Carbon motherboard and an MSI MPG K360 liquid cooler. MSI pushed the voltages to 1.36V and the CPU was set to an overclock of around 5.2 GHz. We will talk about the reference results obtained by MSI separately, but first, let’s talk about the most important aspects that MSI detailed, based on some of the packages’ current figures and total temperatures.
Intel Rocket Lake 11th Generation CPU Overclocking Package Power and Temperatures
MSI starts by showing an Intel Core i9-11900K overclocking behavior map. The diagram shows how the voltages affect the overall package power and temperatures. The Intel Core i9-11900K relies on a 14nm process node, so it is expected to be very hot. MSI shows that to hit a 5 GHz all-core overclock, you need around 1.33V, and it pushes the packet power to 291W and CPU temperatures to 92C.
Anything above 5 GHz will result in over 300W packet power and over 100C temps. MSI used a DIY Water Cooling Kit to achieve these results. It was stated that although they do not know the exact specifications of the custom cooling set, it was far better than a 420 mm AIO liquid cooler, and only that which shows the incredibly hot and power hungry chip that Rocket Lake processors in general are.
To reach 5.1 GHz on the Intel Core i9-11900K, MSI recommends a voltage of 1.37V which resulted in a packet power of 325W and 102C temps. For 5.2 GHz, a voltage of 1.42V was applied to the CPU which resulted in 378W packet power and 113C temps. MSI also offers its own CPU Cooler Tuning configurations that allow you to choose from a predetermined list of power profiles based on your CPU cooling characteristics.
Intel Rocket Lake 11th Generation CPU Adaptive-Boost Package Power and Temperatures
MSI also provides a detailed diagram showing Intel Adaptive Boost Technology running on the Intel Core i9-11900K CPU. We have already given a detailed overview of how the technology works in our review, which you can read here. When activated, Adaptive Boost Technology pushes the packing power above 300W (in stock / without AVX) and above 350W (in stock / with AVX). There is almost a 100 W difference in packing power than standard Thermal Velocity Boost technology.
The temperatures and voltages also see a significant increase with the processor running at 85 ° C and sipping in 1.452V when running in stock and non-AVX working loads. In AVX workloads, the chip nips to 1.48V and runs at over 114.5C. This is a temperature increase of 25C compared to standard TVB 3.0 technology.
Intel Rocket Lake 11th Generation CPU AVX-512 FPU Package Power and Temperatures
For AVX-512 workloads, the Intel Core i7-11700K and Core i9-11900K averaged around 394 W (PRIME95 Small FFT AVX) and 339.96 (AIDA64 FPU AVX). The Core i5-11600K averaged 282.36W in the PRIME95 and 242.88W in the AIDA64 tests. All these tests were done with the processor running under storage conditions. It was stated that the AVX-512 results in a frequency drop if used by a program.
Therefore, there are setting options on the Z590 motherboards that allow you to disable the AVX (or just the AVX-512) and also configure the offset range / ratio / voltages and the voltage protection volume.
Intel Rocket Lake IMC Gear Modes For DDR4 Memory Support & Overclocking
Another feature of Intel’s Rocket Lake K-Series Desktop CPU is the Integrated Memory Controller Gear Mode which is similar to AMD’s Infinity Fabric and determines a 1: 1 or 1/2: 1 mode for DDR4 memory. What happens is that when running high frequency memory, IMC on Intel processors can get very stressed to keep up with the higher frequencies in DDR4 memory as such, Gear 2 mode kicks in to relieve some of the stress from IMC .
Gear 1 mode goes up to DDR4-3600 (same as AMD) with Gear 2 mode starting with DDR4-3733 and going all the way up to DDR4-5333. The only sacrifice you make by switching to Gear 2 mode will be higher latency, but you will retain higher bandwidth. In Gear 2 mode, you can further push your memory clocks, but only use an equal number multiplier, as odd numbers do not work in this specific model. There are also two base clocks you can set for memory that can be either 100 MHz or 133 MHz. So the maximum you can hit with Rocket Lake is 8266 MHz with a 62x multiplier and a 100×1.33 memory clock.
The following are the gear modes that MSI says will work on their motherboards using XMP:
MSI B560 motherboards support both base clock and DDR4 memory overclocking
Finally, MSI confirmed that the B560-class motherboards support both base clock overclocking on unlocked and non-K processors while also having DDR4 memory overclocking. In the slides, MSI shows that the B560 motherboards can support up to 5200-5066 MHz memory speeds, which can provide a decent increase in performance in applications that require higher system bandwidth.
When it comes to overclocking, while the B560 does not have the same setting options as the Z590 series, they have the base clock overclocking feature that was also discussed on the B460 motherboards. The feature essentially raises the PL1 power limit and sets it to the same level as PL2, which provides much faster performance on Intel Desktop processors. MSI shows that it managed to get the Core i9-11900F to deliver better CPU performance than the Core i9-11900K with an overclock from 100 MHz to 102.8 MHz.