ATI Radeon 9550 vs Diamond Multimedia Stealth S120 (S120AGP256)

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ATI Radeon 9550 vs Diamond Multimedia Stealth S120 (S120AGP256)

Theoretical performance comparison

Each GPU has several vital theoretical parameters that influence real-world game, 3D graphics and compute performance. They are pixel fillrate, texture fillrate, memory bandwidth, single-precision performance and double-precision performance. Below we explain why these characteristics are important and which card has better specs.

Pixel fill rate (gigapixels/s)

1.6

1.2

0.8

0.4

Higher is better

Pixel fillrate number shows how many pixels a graphics card can draw on screen and off screen. Higher numbers allow graphics cards to support higher display resolutions and frame rates. The maximum pixel fillrate depends on the number of ROPs and graphics clock. Since both characteristics are equal between graphics cards, their pixel fillrate is also identical.

- ATI Radeon 9550

- Diamond Multimedia Stealth S120

Texture fill rate (gigatexels/s)

1.6

1.2

0.8

0.4

Higher is better

There are two factors that affect the maximum theoretical texture fillrate. These are graphics frequency and the number of TMUs (Texture Mapping Units). Both models have the same number of TMUs and the same graphics clock rate, as a result their texture fillrate is equal.

Memory bandwidth (GB/s)

6.4

4.8

3.2

1.6

6.4

Higher is better

Memory bandwidth of GPUs is identical.

Specs comparison

All rows with different specifications or features are highlighted.


General information
Market segment	Desktop
Manufacturer	ATI	Diamond Multimedia
Model	Radeon 9550	Stealth S120
Part number		S120AGP256
Based on	N/A	ATI Radeon 9550
Architecture / Interface
Die name
Fabrication process
Bus interface
Cores / shaders
Color ROPs
Pixel shader processors
Pixel fill rate
Vertex shader processors
Texture units
Texture fill rate
Clocks / Memory
Graphics clock	250 MHz
Memory size	256 MB
Memory type	DDR
Memory clock
Memory interface width
Memory bandwidth
Other features