ATI Radeon HD 5450 & HD 5570 Review

Radeon HD 5570

The Radeon HD 5570 is the video card that I found surprising. Instead of having specs similar to the HD 5450, it has a striking likeness to the HD 5670 which is also based on the Redwood GPU. The memory is the only thing that separates them with the difference being GDDR3 versus GDDR5. So instead of being an upgraded HD 5450, the HD 5570 is a slightly down-graded HD 5670.

Here are the full specifications:

The card features ATI’s Eyefinity Technology and supports up to 3 monitors simultaneously. The default clock speeds are 650MHz on the core clock and a memory clock of 900MHz. These speeds combined with its 627 million transistors, make this 40nm process GPU have a maximum of 520 GigaFLOPs of computing power.

Although the Redwood GPU is designed with performance-per-watt in mind, it is also more tailored towards gaming on a budget. The architecture of this GPU possess the following characteristics:

• 5 SIMD engines
• 400 Stream Processing Units
• 20 Texture Units
• 32 Z/Stensil ROP Units
• 8 Colour ROP Units
• 128-bit memory interface
  • Providing a memory bandwidth of 28.8 GB/sec

Here is a diagram of the GPU:

Here are some nice shots of the reference card itself:

AMD has not left anything up to chance and therefore I won’t either. Let me introduce the test system so we can get to the benchmarking results.