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GeForce 9500 GT DDR2 vs Radeon HD 5550

Intro

The GeForce 9500 GT DDR2 uses a 65 nm design. nVidia has set the core frequency at 550 MHz. The DDR2 RAM is set to run at a speed of 500 MHz on this particular card. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specs to the Radeon HD 5550, which has core speeds of 550 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 320(64x5) SPUs along with 16 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 9500 GT DDR2 should theoretically perform quite a bit faster than the Radeon HD 5550 in general. (explain)

GeForce 9500 GT DDR2 16000 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

Both cards have exactly the same texel fill rate, so in theory they should be equally good at at anisotropic filtering. (explain)

Pixel Rate

Both cards have the exact same pixel rate, so theoretically they should perform equally good at at anti-aliasing, and be capable of handling the same screen resolutions. (explain)

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

Check prices at:

Radeon HD 5550

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.

Specifications

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Model GeForce 9500 GT DDR2 Radeon HD 5550
Manufacturer nVidia AMD
Year July 2008 February 9, 2010
Code Name G96a Redwood LE
Memory 256 MB 512 MB
Core Speed 550 MHz 550 MHz
Memory Speed 1000 MHz 800 MHz
Power (Max TDP) 50 watts (Unknown) watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 8800 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 32 320(64x5)
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR2 DDR2
Bus Width 128-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 314 million 627 million
Bus PCIe x16 2.0, PCI PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 9500 GT DDR2

Amazon.com

Check prices at:

Radeon HD 5550

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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