* Higher Proficiency Level: CPE targets C2 level on the CEFR (Common European Framework of Reference for Languages), the highest level. IELTS aims for a range from C1 to C2 depending on the score. This means CPE expects a far more nuanced and sophisticated command of English.
* More Complex Tasks: CPE tasks are generally longer, more complex, and demand a wider range of vocabulary and grammatical structures than IELTS tasks. The writing tasks, in particular, require more in-depth analysis, argumentation, and stylistic precision.
* Wider Range of Skills Tested: While both tests assess reading, writing, listening, and speaking, CPE often integrates skills in more complex ways. For instance, a CPE reading passage might require you to not only understand the text but also analyze its style, author's intent, and implicit meaning.
* Emphasis on Academic English: CPE's focus is strongly on academic English, reflecting the language used in university settings. IELTS, while acknowledging academic language, caters to a broader range of purposes including immigration and professional settings.
* Less Predictable Question Types: While IELTS has relatively standardized question types, CPE can present more varied and unpredictable tasks, requiring greater adaptability and flexibility in your approach.
In short, while someone scoring highly on IELTS might have a good chance at CPE, they'd still need significant additional preparation to master the complexities of the CPE exam. The difference in difficulty is substantial, reflecting the different proficiency levels they aim to assess.