VAT) comes with 256MB of GDDR3 memory clocked at 1,600MHz (effective). The top Radeon HD 3650, which will probably sit at around £60 (inc. Iain explained that the core clock speed isn’t everything on the Radeon HD 3650 – memory speed can change performance too. What separates the two models from one another is the memory clock speed and frame buffer size.
AMD says that it has made some optimisations during the die shrink, which should help to improve performance per clock and efficiency a little bit when it’s compared to the ASIC it’s replacing at the same clock speed. RV635 also uses fewer transistors-a total of 378 million-than the RV630 chip, which itself featured a pretty massive 390 million of the little blighters. Update: AMD has confirmed that the shader units are exactly the same as those in the RV670, which means there is double precision support, However, AMD is choosing not to market this because its use is limited to GPGPU and these cards aren't going to be brutes in those kind of workloads. at a much lower level, I've heard (but still waiting for confirmation) that AMD has added double precision support at one quarter speed, but it’s not exposed in current 3D graphics APIs. What has changed architecturally now though is that there is support for DirectX 10.1, PCI-Express 2.0 and ATI PowerPlay at a high level. The number of texture units and raster operators hasn’t changed either, meaning there are still just eight texture units and four raster operators (or ROPs). AMD’s Iain McNaughton explained that the company looked at the mainstream segment and asked itself “what can we do that is different and disruptive to our competitors, while offering more value to our customers?”ĭespite only offering one model name, there are still two products that fit under this name – both share the same engine clock, which is set 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-way superscalar shader units) – both also feature a 128-bit memory interface.
#ATI RADEON HD 3400 SERIES SPECS PRO#
Starting with RV635, AMD has decided that instead of having separate Pro and XT cards like it did in the Radeon HD 2600 series, it would stick with just one model name in the Radeon HD 3650 series. The ‘50’ is the equivalent to an old ‘Pro’ card, while the ‘70’ is basically defining the card as the ‘XT’ of old. Hopefully, we’ll at least get to have a closer look at a Radeon HD 3650 soon, though.ĪTI Radeon HD 3650During 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 part, the underlying architecture in the Radeon HD 3000-series is essentially the same as was used in the Radeon HD 2000-series, but it incrementally improved on a number of the shortcomings.Īs with the RV670-based products, the RV635 and RV620-based cards don’t use the traditional Pro, XT and XTX suffixes – instead the company differentiates the products in their actual product number. Sadly though, we don’t have any hardware at the moment, which means that we’re unable to compare their performance to what is already on the market. Over the course of this article, we’re going to outline what’s new in these new cards. As such, the new cards have inherited all of the features from the Radeon HD 3800-series, which means they’re manufactured on one of TSMC’s 55nm processes, and feature DirectX 10.1 support, ATI PowerPlay technology, PCI-Express 2.0 and improved CrossFire support.
The basic premise of these cards is not to massively improve the performance, but to improve the feature set quite significantly. Two of the new cards make up the Radeon HD 3400-series, the HD 3450 and HD 3470, while the remaining card is called the Radeon HD 3650. AMD ATI Radeon HD 3450, 34 Manufacturer: AMDĪMD has today announced 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.
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