AMD Radeon HD 6790 1 GB

Introduction

In October 2010, AMD released their Radeon HD 6850 and HD 6870 which are based on the Barts GPU core. Today AMD adds a third Barts-based model to their lineup in form of the Radeon HD 6790.

HD 6790 comes with an odd model number that we haven't seen from AMD before. It basically means "the fastest midrange card. In terms of performance we can expect significantly reduced performance compared to the HD 6870 and HD 6850, which have 1120 and 960 shaders - AMD's Radeon HD 6790 comes with 800. Compared to the HD 5770 performance should be increased by higher clocks and architectural improvements over Juniper. Price-wise AMD is communicating around $150 for their new Radeon HD 6790 which seems to match with what we have seen on some early postings of online merchants.

	GeForce GTS 450	Radeon HD 5770	Radeon HD 6790	GeForce GTX 550 Ti	GeForce GTX 460	GeForce GTX 460	Radeon HD 6850	Radeon HD 5850	GeForce GTX 470	Radeon HD 6870	GeForce GTX 560 Ti
Shader units	192	800	800	192	336	336	960	1440	448	1120	384
ROPs	16	16	16	24	24	32	32	32	40	32	32
GPU	GF106	Juniper	Barts	GF116	GF104	GF104	Barts	Cypress	GF100	Barts	GF114
Transistors	1170M	1040M	1700M	1170M	1950M	1950M	1700M	2154M	3200M	1700M	1950M
Memory Size	1024 MB	1024 MB	1024 MB	1024 MB	768 MB	1024 MB	1024 MB	1024 MB	1280 MB	1024 MB	1024 MB
Memory Bus Width	128 bit	128 bit	256 bit	192 bit	192 bit	256 bit	256 bit	256 bit	320 bit	256 bit	256 bit
Core Clock	783 MHz	850 MHz	840 MHz	900 MHz	675 MHz	675 MHz	775 MHz	725 MHz	607 MHz	900 MHz	823 MHz
Memory Clock	900 MHz	1200 MHz	1050 MHz	1026 MHz	900 MHz	900 MHz	1000 MHz	1000 MHz	837 MHz	1050 MHz	1002 MHz
Price	$110	$120	$150	$150	$150	$180	$180	$200	$250	$220	$250