ATI R520 Roadmap and
Pricing
CardPipes
Std Core Clock
Std
Memory
MSRP
X1800 XT 16600MHz700MHz 512MB GDDR3 $ 599
X1800 XL 16550MHz625MHz 512MB GDDR3$ 499
X1800 Pro 16500MHz500MHz 256MB GDDR3 $ 449
X1800 LE 12450MHz450MHZ 256MB GDDR3 $ 349

Anandtech has some

nice tibits
on the R520, RV530 and RV515. Common features to all R520 based
boards include the new 90nm lead free manufacturing process, a Xilleon based TV
encoder, SM3.0, H.264 decode acceleration and CrossFire support.

ATI R520 Roadmap and
Pricing
CardPipes
Std Core Clock
Std
Memory
MSRP
X1800 XT 16600MHz700MHz 512MB GDDR3 $ 599
X1800 XL 16550MHz625MHz 512MB GDDR3$ 499
X1800 Pro 16500MHz500MHz 256MB GDDR3 $ 449
X1800 LE 12450MHz450MHZ 256MB GDDR3 $ 349

Anandtech has some

nice tibits
on the R520, RV530 and RV515. Common features to all R520 based
boards include the new 90nm lead free manufacturing process, a Xilleon based TV
encoder, SM3.0, H.264 decode acceleration and CrossFire support.