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Review: Sapphire (AMD) Radeon HD 4670: bullying the mainstream market

by Tarinder Sandhu on 10 September 2008, 09:09

Tags: Radeon HD 4670 512MB, ATI Radeon HD 4670, AMD (NYSE:AMD), Sapphire, ATi Technologies (NYSE:AMD), PC

Quick Link: HEXUS.net/qapbb

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HEXUS.bang4buck, power-draw, and overclocking

In a rough-and-ready assessment of the cards' bang per buck, we've aggregated the 1,280x1,024 frame-rates for the four games and taken account of the cards' prices.

But there are more provisos than we'd care to shake a stick at. We could have chosen four different games, the cards' prices could have been derived from other sources and pricing tends to fluctuate daily.

Consequently, the table and graph below highlight a metric that should only be used as a yardstick for evaluating comparative performance with price factored in. Other architectural benefits are not covered, obviously.

Graphics cards Sapphire Radeon HD 4670 512MB GDDR3 Sapphire Radeon HD 3650 512MB Sapphire Radeon HD 3850 256MB XFX GeForce 9500 GT 256MB ZOTAC GeForce 9600 GT 512MB XFX GeForce 9600 GSO 384MB
Aggregate marks at 1,280x1,024 201.65
78.74
138.18*
96.89
232.24 186.2
Current pricing, including VAT £50 £35 £65 £45 £70 £68
HEXUS.bang4buck score at 1,280x1,024 4.03
2.25
2.13
2.15
3.32 2.74
Acceptable frame rate (av. 30fps) at 1,280x1,024 Yes No (CoH, ET, CoD4, GRID) No (ET*) No (CoH, CoD4, ) Yes
Yes

* the Sapphire Radeon HD 3850 256MB failed to complete any testing in Enemy Territory: Quake Wars. Knowing this, its HEXUS.bang4buck is artificially low.

Here's the HEXUS.bang4buck graph at 1,280x1,024. The graph divides the aggregate score by the price.

HEXUS.bang4buck at 1,280x1,024
Sapphire HD 3650 512XFX 9500 GT 256XFX 9600 GSOZOTAC 9600GTSapphire HD 3850 256Sapphire HD 4670 512
2.252.152.743.322.134.03


High comparative performance and a low estimated street price means that the Sapphire Radeon HD 4670 512MB wins the HEXUS.bang4buck metric with consummate ease.

Power-draw

Graphics cards Sapphire Radeon HD 4670 512MB GDDR3 Sapphire Radeon HD 3650 512MB Sapphire Radeon HD 3850 256MB XFX GeForce 9500 GT 256MB ZOTAC GeForce 9600 GT 512MB XFX GeForce 9600 GSO 384MB
System power-draw (idle) 64W
68W
91W
73W
84W 88W
System power-draw (load) 110W 111W 150W 101W 133W 133W


The card's pretty frugal with respect to power, drawing around the same wattage as a Radeon HD 3650 512MB, according to our numbers.

Overclocking

Ramping up clocks past the 750MHz/2,000MHz default speed, we managed to hit 800MHz core/engine and 2,100MHz for the GDDR3 memory. Looking back at the Enemy Territory: Quake Wars test run at 1,680x1,050, the default-clocked card scored an average of 49.97fps. This rose to 52.3fps with the elevated clocks. There's only so much clock-speed can do for an architecture.