The Radeon HD 4770 512MB
Before we jump into the benchmarks let’s take a look at the reference sample that AMD sent us for our article. 

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  1

For a $99 part, the Radeon HD 4770 is actually a pretty big card: it’s a dual-slot cooler design and is about the same size as the HD 4870.

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  2

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  3

The layout of the connections is uniform: two dual-link DVI outputs (each of which supports the DVI-to-HDMI adapters) and a single HDTV / dongle connection.

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  4

The HD 4770 continues to support not only CrossFire but CrossFire X that allows for as many as FOUR GPUs to be grouped together. 

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  5

This $100 graphics card will require a 6-pin PCIe power connection – this seems to be a trend continuing from both AMD and NVIDIA as of late.

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  6

Though the cooler on the new 40nm GPU is still big the actually heatsink and fins are modest in size and in weight – the 40nm GPU obviously doesn’t need as much cooling power as the 55nm iterations seen in the HD 4800-series.

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  7

Taking the top off of the card reveals the RV740 GPU and GDDR5 memory at its heart.

AMD Radeon HD 4770 512MB Review - World's First 40nm GPU - Graphics Cards  8

Here you can see the 40nm part next to the ubiquitous quarter; the die shrink does result in a somewhat smaller die.

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