There are some differences in hardware configurations between Qualcomm Snapdragon 801 (MSM8274AC) and Qualcomm Snapdragon 801 (MSM8974AB).First of all, they have different processor cores. MSM8274AC has a 64 bit quad core Krait 400 processor, while MSM8974AB is equipped with a 64 bit quad core Krait 450 processor.Secondly, the graphics processing unit is also different. The MSM8274AC uses Adreno 403 GPU, while the MSM8974AB uses Adreno 420 GPU.In addition, there are also differences in the supported network standards and memory specifications. It should be noted that although these differences may lead to some performance and functional changes, it does not mean that MSM8274AC is inferior to MSM8974AB.In fact, it is difficult to detect the difference between these two chips in daily use, and they belong to Qualcomm Snapdragon 801 series.The final chip selection depends on the user's needs and budget considerations.
Qualcomm Snapdragon 801 includes three models: msm8974aa, msm8974ab, and msm8974ac. Among them, ac is better than ab in performance, but the gap is smaller, less than 10%. In addition, msm8974vv belongs to Snapdragon 800 series, not to Snapdragon 801 series.
Mainly because the baseband is different 8274 3G network supporting WCDMA only (Unicom 3G) 8974 theoretically supports all networks, including 4G AC has higher dominant frequency, greater heat generation and stronger performance than AB (but in fact, the difference is very small, and daily use cannot reflect the difference)
