Radeon HD 8790M Vs HD 7690M first Benchmark leaked

Here is the first leaked review with benchmarks of the next generation graphic cards from AMD, the HD 8000 series, techreport guys managed to get their hands on a provided simpler of a mobile 8xxx GPU version, the Radeon HD 8790M and with no doubt they put it on the first test.

This graphic card is a successor of the Radeon HD 7600M as report the source, the GPU used on the Radeon HD 8790M is  a 28nm based, powered with 384 ALUs with a core running at 900MHz, total of 2GB GDDR5 clocked at 4000MHz, and a 128-bit memory bus, using the all new GCN architecture.

With the help of AMD, we've tried a different approach this time. AMD supplied the aforementioned GPUs—the Radeon HD 8790M and 7690M—as bare MXM modules, each one with its own, dedicated cooler. For our test platform, AMD sent us an MXM to PCI Express x16 adapter alongside an off-the-shelf desktop processor, motherboard, and memory. Using this setup, we're able to test mobile GPUs free from the confines of notebooks or proprietary qualification hardware.

They tested the mobile graphic card using a desktop setup (Core i7-3770K and a Gigabyte Z77X-UD3H motherboard) connected to an PCIe using an AMD's MXM adapter, they compared the HD 8790M provided with the previous generation Radeon HD 7690M supposed to be a very close one but using 40nm and old architecture.

GPU	ALUs	Core clock	Mem. clock	Mem. interface width	Memory	Fab. process	Die size
Radeon HD 7690M	480	600 MHz	800 MHz	128-bit	1GB GDDR5	40 nm	118 mm²
Radeon HD 8790M	384	900 MHz	1000 MHz	128-bit	2GB GDDR5	28 nm	~76.5 mm²

Check bellow for a snapshot of the benchmark comparing the two generations.

full review

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