The 820 has a 15-inch display, weighs in at about 6 pounds, and has similar config options, including a choice of Core Solo or Duo processors.

ENGADGET: Dell Latitude D620, D820 get specs

That marathon battery life is made possible in part by the slow-spinning 4, 200 rpm 30GB hard drive and low-power (in more ways than one) Core Solo U1300 processor, running at a sprightly 1.06GHz.

ENGADGET: Toshiba updates Dynabooks with new SS S30 and SS M36

According to these docs, the 620 will weigh 4.41 pounds, will be available in Core Solo and Duo configs, will have a 14-inch display running at either 1280x800 or 1440x900, and will include WiFi and Bluetooth, with optional internal HSDPA or EV-DO cards available.

ENGADGET: Dell Latitude D620, D820 get specs

The last time we mentioned Toshiba's M400, it was rocking a lowly Core Solo processor and a 1, 024 x 768 resolution LCD, but now Toshiba is upping the ante on the convertible by tossing in a Core 2 Duo chip along with HSDPA technology.

ENGADGET: Toshiba's Portege M400 goes Core 2 Duo, gets HSDPA

With a new, sleeker design, the Solo 21 also gets some serious performance upgrades with Intel's 3rd Generation Core technology, fast mSATA solutions from Crucial, and optional vPro technology for enterprise customers looking for a manageable solution.

ENGADGET: Maingear Solo 21 receives a makeover, $899 all-in-one PC is now fully upgradable

Other than this omission, however, the Solo offers much of the same specs as before, which includes a single-core 1GHz MediaTek MT6575 SoC, a 4.3-inch qHD display, a 5-megapixel camera and a 1, 500mAh battery.

ENGADGET: Acer Liquid Gallant Solo makes brief cameo, Android 4.0 smartphone lives up to its name

Testing the cards on an Intel Core 2 Extreme QX6700-powered machine with 2GB of RAM, the single R600 card bested the solo 8800 GTX in basically every benchmark they tried, with common applications seeing minimal gains, but games saw between ten-percent (Half-Life 2: Lost Coast) and 42-percent (1701 A.D.) hikes.

ENGADGET: ATI R600 graphics card benchmarked, cruises by NVIDIA's GeForce 8800 GTX