AMD RV740 is Radeon HD 4770 / 4750,

VR-Zone learns that AMD is planning to launch two new mainstream cards
based on 40nm RV740 in May, a month after releasing the high end 55nm
RV790 cards. There will be two versions; Radeon HD 4770 (RV740XT) and
Radeon HD 4750 (RV740PRO).the new cards will be based on a 40nm
graphics processing unit, but will be part of the company's current
HD4000-series. AMD is expected to launch two new models, based on the
same graphics processing unit. The first, which will boast an RV740PRO
GPU, will be equipped with 1GB of GDDR3 memory and will come with a
core clock of 700MHz. This card will be branded as the Radeon HD 4750,
while the one based on the RV740XT GPU will be known as the Radeon HD
4770. This one will also boast a 700MHz GPU, but provide 512MB of
GDDR5 memory, clocked at 800MHz.
The chip is etched to recall, for the first time in 40 nanometers, and
additionally includes calculating 640 units and 32 texture units.The
ATI Radeon HD 4770 would be based on the RV740XT to board 512 MB
memory 128-bit GDDR5 cadencée at 800 MHz. The Radeon HD 4750 based on
a RV740PRO for its part would have 1 GB of GDDR3 memory. These two
cards benefit for the first time a three-phase supply of energy saving
and a GPU running at 700 MHz.

The GeForce GTS 250, which is nothing more than a simple GeForce 9800
GTX + fame, will be launched on March 3, the opening day of CeBIT. The
selling price of this card would be an opportunity down, we are
talking about $ 130. The GeForce GTS 240 would be much the same as the
GeForce 9800 GT, but little novelty, the frequencies would be boosted
to 675 MHz for the GPU, 1688 MHz for calculation units and 2200 MHz
for memory (instead of 600, 1500 and 1800 Mhz).