Amd Ati Radeon Hd Pcie 3450 Vs 3470 Review

AMD ATI Radeon HD 3450, 3470 and 3650

Manufacturer: AMD

AMD has today appear the introduction of three new Radeon Hd 3000-series graphics products that will replace the relatively lacklustre Radeon Hd 2600 and Radeon HD 2400 series graphics cards. Ii of the new cards make upward the Radeon Hard disk 3400-series, the HD 3450 and HD 3470, while the remaining card is called the Radeon HD 3650.

The basic premise of these cards is not to massively improve the performance, simply to improve the feature ready quite significantly. As such, the new cards accept inherited all of the features from the Radeon HD 3800-series, which means they're manufactured on one of TSMC'southward 55nm processes, and feature DirectX 10.1 back up, ATI PowerPlay technology, PCI-Limited 2.0 and improved CrossFire support... but that's non all – there's more than also.

Over the course of this article, we're going to outline what's new in these new cards. Sadly though, nosotros don't have whatever hardware at the moment, which means that we're unable to compare their performance to what is already on the market place. Hopefully, nosotros'll at least get to have a closer look at a Radeon HD 3650 soon, though.

ATI Radeon HD 3650

During our extensive coverage of RV670—the GPU powering the Radeon Hd 3870 and Radeon Hd 3850 cards—we outlined the fact that, for the most role, the underlying architecture in the Radeon Hard disk drive 3000-series is essentially the same equally was used in the Radeon Hd 2000-serial, only it incrementally improved on a number of the shortcomings.

Equally with the RV670-based products, the RV635 and RV620-based cards don't use the traditional Pro, XT and XTX suffixes – instead the visitor differentiates the products in their actual product number. The '50' is the equivalent to an old 'Pro' card, while the 'seventy' is basically defining the card equally the 'XT' of old.

Starting with RV635, AMD has decided that instead of having split Pro and XT cards like information technology did in the Radeon HD 2600 series, it would stick with just 1 model proper name in the Radeon HD 3650 serial. AMD's Iain McNaughton explained that the company looked at the mainstream segment and asked itself "what can we practise that is different and confusing to our competitors, while offer more value to our customers?"

Despite only offering one model name, there are notwithstanding two products that fit under this name – both share the same engine clock, which is ready at 725MHz (slower than the Radeon HD 2600 XT's engine clock), and the same number of stream processors as the Radeon HD 2600 series cards (120 stream processors or 24 five-manner superscalar shader units) – both also feature a 128-chip memory interface.

The number of texture units and raster operators hasn't changed either, meaning there are notwithstanding just 8 texture units and iv raster operators (or ROPs). What has changed architecturally now though is that in that location is support for DirectX 10.i, PCI-Express 2.0 and ATI PowerPlay at a high level... at a much lower level, I've heard (but still waiting for confirmation) that AMD has added double precision back up at ane quarter speed, merely it's not exposed in electric current 3D graphics APIs.

Update: AMD has confirmed that the shader units are exactly the same every bit those in the RV670, which means at that place is double precision support, However, AMD is choosing non to market this considering its use is limited to GPGPU and these cards aren't going to be brutes in those kind of workloads.

RV635 also uses fewer transistors—a total of 378 million—than the RV630 chip, which itself featured a pretty massive 390 1000000 of the petty blighters. AMD says that it has made some optimisations during the die shrink, which should help to ameliorate performance per clock and efficiency a little bit when it's compared to the ASIC information technology'southward replacing at the aforementioned clock speed.

What separates the two models from 1 another is the memory clock speed and frame buffer size. Iain explained that the cadre clock speed isn't everything on the Radeon Hard disk 3650 – memory speed tin change operation too. The superlative Radeon HD 3650, which will probably sit at around £60 (inc. VAT) comes with 256MB of GDDR3 memory clocked at i,600MHz (effective).

The second, admitting slower Radeon HD 3650 will come with either 256MB, 512MB or 1024MB of DDR2 retentiveness clocked at around 500MHz and that's expected to be priced anywhere from £45 to £60 (inc. VAT), depending on the amount of memory on the card. Now, I'm not quite sure why AMD is going downwardly this road, because it said that partners will besides overclock the cards – the effect could quite easily be a rather confusing state of affairs for consumers.

I've already been pretty vocal almost massive(ly useless) retentivity sizes on mainstream cards in the past because information technology's frankly not needed at all – it plays on the 'you tin can never have plenty RAM' consensus that is very true with system memory, but not and so true with graphics carte memory. There's no indicate in lots of graphics retention if it'due south non got a fast enough connection to the GPU, or the GPU itself isn't powerful plenty to really benefit from more memory.

AMD says that the Radeon HD 3650 uses less than 75W of ability at peak and supports everything you'd expect a Radeon Hd 3000 series product to back up – we'll come up back to those afterward though, as they're common for the Radeon HD 3400 serial likewise.

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Source: https://bit-tech.net/reviews/tech/graphics/ati_radeon_hd_3450_3470_and_3670/1/

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