AMD E-240 vs AMD E-300 vs AMD E2-1800

AMD E-240

The AMD E-240 (codename Zacate) is a single core processor for small notebooks and netbooks. It offers a relatively powerful integrated graphics card and a single channel DDR3-1066 memory controller.

Inside the E-240 one Bobcat core (the second one is deactivated) can access 512KB level 2 cache. In comparison to the Atom processors, the Bobcat architecture uses an "out-of-order" execution and is therefore faster at the same clock speed. However, the performance is far worse than similar clocked Penryn (Celeron) or Danube (AMD V-Series) cores. On average the cpu performance of the E-240 should be between a 2 GHz Atom and a Celeron single core with 1.1 GHz.

The integrated Radeon HD 6310 graphics card offers 80 shaders and an UVD3 video processor. Compared to the slow GMA 3150 in the Atom processors, the HD6310 offers a lot more performance and is about as fast as the Nvidia ION graphics solution.

The power consumption is rated with a TDP of 18 Watt by AMD.

AMD E-300

The AMD E-300 (codename Zacate) is a low-end dual-core processor designed for the smaller laptops and netbooks. The E-series processor has a relatively fast iGPU and a single channel DDR3-1066 memory controller.

An E-300 has two Bobcat processor cores running at 1.3 GHz, each with the access to 512 KB of Level 2 cache (1 M in total). In comparison to the Atom processors, the Bobcat architecture uses an out-of-order execution and is therefore faster at the same clock speed.

The Radeon HD 6310 iGPU has 80 unified shaders and an UVD3 video processing engine. The iGPU has no trouble outshining the Intel GMA 3150 in the Atom processors, and it does not lag behind the Nvidia ION, either. The Radeon has support for HDMI 1.4a video output.

Performance

The average E-300 in our database is in the same league as the A4-1250, as far as multi-thread benchmark scores are concerned. Which isn't a great result. This is a fairly slow chip, as of mid 2022; expect to see plenty of slowdowns no matter what it is that you are currently doing.

Power consumption

This APU has a default TDP of 18 W, meaning an active cooling solution is a must.

The AMD E-300 is manufactured on a 32 nm process leading to really, really low, as of 2022, energy efficiency.

AMD E2-1800

The AMD E2-1800 (codename Zacate) is a dual core processor for small notebooks and netbooks. It offers a relatively powerful integrated graphics card and a single channel DDR3-1333 memory controller. Compared to the older E-450, the E2-1800 offers only slightly higher CPU (50 MHz)  and GPU (20-80 MHz) clock rates.

Inside the E2-1800 two Bobcat cores can access 512KB level 2 cache per core. In comparison to the Atom processors, the Bobcat architecture uses an "out-of-order" execution and is therefore faster at the same clock speed. However, the performance is far worse than similar clocked Penryn (Celeron) or Danube (Athlon II) cores. On average the cpu performance of the E-450 lies a bit beyond a Celeron SU2300 at 1.2 GHz or a Athlon II Neo K325 at 1.3 GHz. 

The integrated Radeon HD 7340 graphics card offers 80 shaders and an UVD3 video processor. Compared to the slow GMA 3150 in the Atom processors, the HD7340 offers a lot more performance and is about as fast as the Nvidia ION graphics solution. The difference to the older 6320 in the E-450 is a 20-80MHz higher clock rate.

The power consumption is rated with a TDP of 18 Watt by AMD. According to first reviews of Brazos prototypes the power consumption was between 11 to 29 Watt. This would be on a level of a (much more powerful) 11" MacBook Air using Windows 7.