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GeForce GTX 480 vs Radeon HD 5550

Intro

The GeForce GTX 480 makes use of a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR5 RAM runs at a speed of 924 MHz on this specific card. It features 480 SPUs as well as 60 TAUs and 48 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5550, which has clock speeds of 550 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 320(64x5) SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 480 will be 1286% quicker than the Radeon HD 5550 overall, because of its greater data rate. (explain)

GeForce GTX 480 177408 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 164608 (1286%)

Texel Rate

The GeForce GTX 480 is much (more or less 377%) faster with regards to texture filtering than the Radeon HD 5550. (explain)

GeForce GTX 480 42000 Mtexels/sec
Radeon HD 5550 8800 Mtexels/sec
Difference: 33200 (377%)

Pixel Rate

The GeForce GTX 480 should be quite a bit (more or less 664%) better at FSAA than the Radeon HD 5550, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon HD 5550 4400 Mpixels/sec
Difference: 29200 (664%)

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 GTX 480

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 GTX 480 Radeon HD 5550
Manufacturer nVidia AMD
Year March 2010 February 9, 2010
Code Name GF100 Redwood LE
Memory 1536 MB 512 MB
Core Speed 700 MHz 550 MHz
Memory Speed 3696 MHz 800 MHz
Power (Max TDP) 250 watts (Unknown) watts
Bandwidth 177408 MB/sec 12800 MB/sec
Texel Rate 42000 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 480 320(64x5)
Texture Mapping Units 60 16
Render Output Units 48 8
Bus Type GDDR5 DDR2
Bus Width 384-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 627 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 480

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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