Radeon HD 6450 is an entry-level GPU based on the 40nm architecture Terrascale 2.
Technically, it succeeds Radeon HD 5450 and has to compete against Intel's integrated graphics. It's based on the Caicos Core and therefore offers 160 Shader Processing Units, 8 TMUs and 4 ROPs on a 64-bit memory interface of fast GDDR5. The memory clock will be clocked at up to 800MHz while the central unit can range from 625MHz to 750MHz.
This GPU's rank is based on the fastest version available and benchmarks indicate its performance is, overall, up to 40% faster than previous Radeon HD 5450. Expect to see 2GB versions of this GPU which will offer exactly the same performance.

Radeon HD 6450 was later (2012) renamed as Radeon HD 7470 GDDR5 and then (2013) as Radeon HD 8470.
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