Components
There are more and more questions for the Intel Core i9-12900K and Core i7-12700K processors. On cheap motherboards on the Intel Z690 chipset, their performance drops by 25-30%
Only yesterday we wrote about Intel’s cunning, allowed in the official comparison of the performance of the Core i9-12900K and Ryzen 9 5950X, and today there are new details about CPU Alder Lake, which also directly relate to performance. But if yesterday it seemed that in its normal state the Core i9-12900K, if it does not exceed the performance of the current AMD flagship, then at least will be at the same level with it, then, according to new data, the Core i9-12900K, equipped with the “wrong” motherboard, will run 30% slower than if used with a mid-range or high-end motherboard. That is, when using a bundle “Aler Lake + cheap motherboard” there is no question of any parity with the Ryzen 9 5950X. But what is the problem?
As it turned out during real tests, Alder Lake is very demanding on the motherboard power subsystem. Inexpensive solutions cannot deliver 135W of power for the long time required for optimal performance of the Alder Lake CPU. Recall that the Power Limit 1 of these CPUs is 125 W, but they naturally consume more under load.
Power shortages result in lower frequencies in Boost mode. As a result, the performance of the Core i9-12900K drops by 25-30%, the Core i7-12700K – by 21-25%, the Core i5-12600K – by 7-9%. The experiment showed that for normal operation of top-end Alder Lake CPUs, a motherboard with a power subsystem built according to the “10 + 1 phase” scheme, producing a current of 50 A with DrMOS integrated circuits, is required. Everything is the same, but with the “6 + 1 phase” scheme, it is already a bottleneck for system performance.
Interestingly, the Asus motherboards based on the Intel Z690 chipset, which we wrote about at the weekend, do not have a single model with a power subsystem of less than 11 phases. But other manufacturers will have such solutions. So when choosing a motherboard for CPU Alder Lake, you need to look not only at the type of supported RAM, but also pay close attention to the power subsystem.
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Components
For 2.5 years, motherboards of well-known brands like MSI, Gigabyte and ASRock have risen in price in Europe by 35-40%
The data of the largest German retailer suggests that motherboards from well-known manufacturers have risen in price significantly in the past few years. This applies to both Intel CPU and AMD CPU models. But in fairness, it should be noted that motherboards based on AMD chipsets added a little less.
The average cost of a motherboard for Intel processors in November 2020 was 140.78 euros, the average price of such a motherboard now, as of March 2023, is already 197 euros. Growth – by 40%. In November 2020, the average cost of a motherboard for AMD processors was 120.5 euros, now it is 163 euros. Growth – by 35% with a little.
It is difficult to explain such an increase by inflation and the laws of the market alone. Most likely, the rise in price is due to the transition to DDR5 and the introduction of support for the PCIe 5 bus.
Components
16-inch 3.2K 165Hz, i9-13900H and GeForce RTX 4070 under 2kg. Lenovo Legion 9000X 2023 proved to be a light laptop for its category
Lenovo has published details about the Legion 9000X 2023 laptop. This is a full-fledged gaming model with a 16-inch screen, but at the same time the thickness of the case is small – 17.99 mm at the thinnest part, and the weight does not exceed 2 kg. This model is sure to be one of the lightest in its class. And at the same time, it should be noted the presence of a high-capacity battery – 100 Wh.
The Legion 9000X 2023 has a 2.5K resolution 240Hz IPS panel at its base, while the more expensive variant has a 3.2K resolution panel at 165Hz. The processors in the top version are Intel Core i9-13900H or AMD Ryzen 9 7940HS, the graphics accelerator is GeForce RTX 4070. The maximum amount of DDR5-5600 MHz RAM is 32 GB. The package includes a 230W power supply, both USB-C ports of the laptop support 140W charging.
Lenovo Legion Y9000X 2023 (based on Intel CPU) will go on sale in April starting at $1,770. Legion R9000X 2023 (on AMD CPU) will be available in May, starting price is the same.
GeForce RTX 4090 graphics cards have finally started to get cheaper.
After the first excitement at the start of sales subsided, the adapters became available without restrictions, but the prices for all these months were closer to 1700-1800 dollars / euros. Now they have started to go down.
In the US, Nvidia’s flagship can be bought for as low as $1,600, which is exactly the recommended price. Europe is even more interesting. The most affordable offer right now is 1680 euros, but this already includes taxes, unlike the American price.
At the same time, Gainward and Palit cards are the cheapest in Europe, but in the US for $ 1,600 you can buy an MSI Gaming GeForce RTX 4090.
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