Hynix vs Samsung on RX 9070 XT: in-depth GDDR6 thermal analysis

Radeon RX 9070 XT cards use GDDR6 from multiple vendors. The biggest differences between Samsung and Hynix appear in temperature and power—Samsung runs notably cooler. Earlier tests with automatic fan control confirmed this. Today I’m adding a temperature comparison at equal fan speeds and, alongside internal sensor data, surface temperatures measured on the chips. That gap is much smaller than expected. Read more “Hynix vs Samsung on RX 9070 XT: in-depth GDDR6 thermal analysis” »

GeForce RTX 3080 vs. RTX 5080 Thermals: Normal or Overheating?

Nvidia surprised many by changing the boost limits on the new GeForce RTX 50 series, removing the option to set a temperature limit during overclocking. Now, only the power limit is adjustable, and specs list only the GPU’s maximum temperature. We’ll look at how this affects GPU Boost compared to the RTX 30 series, what happens to clock speeds and performance when limits are hit, and how to tell if your GeForce is overheating. Read more “GeForce RTX 3080 vs. RTX 5080 Thermals: Normal or Overheating?” »

Zen 4 has a thermal boost, too. 5.85 GHz only at sub 50 °C temps

It is often commented on that Intel processors (like the upcoming Raptor Lake) have many different boost modes with various conditions, for example the temperature-dependent Thermal Velocity Boost. But it turns out that the Ryzen 7000s have something similar. According to unofficial information the top Ryzen 9 7950X model will also reach its maximum frequency only at low temperatures – impractically low, even. Read more “Zen 4 has a thermal boost, too. 5.85 GHz only at sub 50 °C temps” »

Undervolting and overclocking of Ci9-7980XE with NH-D15

Skylake-X is a significantly more flexible generation of high-end processors than the previous one. Not only because of an unprecedented performance, but also thanks to a more reasonable consumption. Let’s take a look at the impact of different CPU settings on performance and functional features. These tests revealed also how economical can a configuration be with a more efficient cooling. Read more “Undervolting and overclocking of Ci9-7980XE with NH-D15” »