Feeds
85%
Radeon 4770 - RV740

AMD ATI Radeon HD 4770 40nm GPU

Can a budget graphics card really be this fast?

  • alert
  • submit to reddit

Remote control for virtualized desktops

Review The RV740 graphics chip at the heart of AMD’s new budget Radeon HD, the 4770, is an interesting wee beastie. It’s wee because this is the first graphics chip to use a 40nm fabrication process rather than the 55nm process used in HD 48x0 series and in Nvidia’s latest GeForce GTX 2xx chips.

Radeon 4770

AMD's Radeon HD 4770: first 40nm GPU on board

The interesting part is that the RV740 chip is a dedicated budget graphics GPU instead of merely being a slice from a high-end chip.

The Radeon HD 4830 has the same transistor count - 956m - that you find in the 4850 and 4870, although the number of unified shaders was reduced from 800 to 640. There’s a bit of a story here as early review samples of the 4830 had 560 shaders until a Bios update magically increased the count to 640 just before the chip was launched.

Radeon 4830 with 560 shaders Radeon 4830 with 640 shaders

Radeon 4830: before the pre-release Bios update (left) and after

Just like the HD 4830 the new HD 4770 has 640 unified shaders however the number of transistors has been reduced to 826 million which must help ATi control costs.

Radeon 4770

Radeon HD 4770 in GPU-Z

As it happens you won’t find HD 4770 on sale for much less than HD 4830 but when you consider that Sterling has dropped like a stone, we suppose that we have to be grateful that prices haven’t risen.

Choosing a cloud hosting partner with confidence

More from The Register

next story
NOKIA - Not FINNished yet! BEHOLD the somewhat DULL MYSTERY DEVICE!
N1 mini-'slab to plop into crowded pond next year
The Nokia ENIGMA THING and its SECRET, TERRIBLE purpose
Finnish firm coyly exposes mystery product – and WE NO what it is
Heyyy! NICE e-bracelet you've got there ... SHAME if someone were to SUBPOENA it
Court pops open cans of worms and whup-ass in Fitbit case
SLURP! Flick your TONGUE around our LOLLIPOP – Google
Android 5 is coming – IF you're lucky enough to have the right gadget
Nokia's N1 fondleslab's HIDDEN BRILLIANCE: The 'Z Launcher'
Sugarcoating Android's Lollipop makes tab easier to swallow
Space Commanders rebel as Elite:Dangerous kills offline mode
Frontier cops an epic kicking in its own forums ahead of December revival
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Simplify SSL certificate management across the enterprise
Simple steps to take control of SSL across the enterprise, and recommendations for a management platform for full visibility and single-point of control for these Certificates.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.