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GeForce 9500 GT DDR2 vs Radeon HD 4550 256MB

Intro

The GeForce 9500 GT DDR2 has a clock frequency of 550 MHz and a DDR2 memory frequency of 500 MHz. It also makes use of a 128-bit memory bus, and uses a 65 nm design. It is made up of 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specifications to the Radeon HD 4550 256MB, which comes with core clock speeds of 600 MHz on the GPU, and 800 MHz on the 256 MB of DDR3 memory. It features 80(16x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB 25 Watts
GeForce 9500 GT DDR2 50 Watts
Difference: 25 Watts (100%)

Memory Bandwidth

In theory, the GeForce 9500 GT DDR2 is 25% faster than the Radeon HD 4550 256MB overall, due to its greater data rate. (explain)

GeForce 9500 GT DDR2 16000 MB/sec
Radeon HD 4550 256MB 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 9500 GT DDR2 is quite a bit (approximately 83%) more effective at AF than the Radeon HD 4550 256MB. (explain)

GeForce 9500 GT DDR2 8800 Mtexels/sec
Radeon HD 4550 256MB 4800 Mtexels/sec
Difference: 4000 (83%)

Pixel Rate

The GeForce 9500 GT DDR2 will be quite a bit (approximately 83%) more effective at AA than the Radeon HD 4550 256MB, and capable of handling higher resolutions better. (explain)

GeForce 9500 GT DDR2 4400 Mpixels/sec
Radeon HD 4550 256MB 2400 Mpixels/sec
Difference: 2000 (83%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 9500 GT DDR2

Amazon.com

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Radeon HD 4550 256MB

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 9500 GT DDR2 Radeon HD 4550 256MB
Manufacturer nVidia AMD
Year July 2008 Sep 30, 2008
Code Name G96a RV710
Memory 256 MB 256 MB
Core Speed 550 MHz 600 MHz
Memory Speed 1000 MHz 1600 MHz
Power (Max TDP) 50 watts 25 watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 8800 Mtexels/sec 4800 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 2400 Mpixels/sec
Unified Shaders 32 80(16x5)
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type DDR2 DDR3
Bus Width 128-bit 64-bit
Fab Process 65 nm 55 nm
Transistors 314 million 242 million
Bus PCIe x16 2.0, PCI PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 9500 GT DDR2

Amazon.com

Check prices at:

Radeon HD 4550 256MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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