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NVIDIA NCA-AIIO Exam - Topic 3 Question 24 Discussion

How is the architecture different in a GPU versus a CPU?
B) A GPU is architected to support massively parallel execution of simple instructions.
A) A GPU acts as a PCIe controller to maximize bandwidth.
C) A GPU is a single large and complex core to support massive compute operations.

NVIDIA NCA-AIIO Exam - Topic 3 Question 24 Discussion

Actual exam question for NVIDIA's NCA-AIIO exam
Question #: 24
Topic #: 3
[All NCA-AIIO Questions]

How is the architecture different in a GPU versus a CPU?

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Suggested Answer: B

A GPU's architecture is designed for massive parallelism, featuring thousands of lightweight cores that execute simple instructions across vast data elements simultaneously---ideal for tasks like AI training. In contrast, a CPU has fewer, complex cores optimized for sequential execution and branching logic. GPUs don't function as PCIe controllers (a hardware role), nor are they single-core designs, making the parallel execution focus the key differentiator.

(Reference: NVIDIA GPU Architecture Whitepaper, Section on GPU Design Principles)


by Salena at Aug 18, 2026, 04:22 AM

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Leonora
4 days ago
A is misleading, GPUs don't act as PCIe controllers.
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Marica
9 days ago
B is spot on! GPUs are all about parallel processing.
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Hermila
14 days ago
Totally agree with B, that's why they're great for gaming!
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Fanny
19 days ago
Wow, I didn’t realize how different they really are!
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Paz
24 days ago
C sounds wrong to me; GPUs have many smaller cores, not one big one.
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Vi
30 days ago
A is misleading; GPUs don’t act as PCIe controllers.
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Jacqueline
1 month ago
B is spot on! GPUs are all about parallel processing.
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Refugia
1 month ago
From what I practiced, I know that GPUs are not just large cores like CPUs, so I think option C is definitely incorrect.
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Tresa
2 months ago
I feel like option A is misleading; I don't recall GPUs acting as PCIe controllers specifically.
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Teresita
2 months ago
I think I saw a practice question that mentioned how GPUs have many cores compared to CPUs, which might relate to option B.
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Ellen
2 months ago
I remember studying that GPUs are designed for parallel processing, but I'm not sure if that means they only handle simple instructions.
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