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GeForce GTX 260 vs Radeon HD 5450

Intro

The GeForce GTX 260 features a clock speed of 576 MHz and a GDDR3 memory speed of 999 MHz. It also features a 448-bit bus, and uses a 65 nm design. It is made up of 192 SPUs, 64 TAUs, and 28 Raster Operation Units.

Compare that to the Radeon HD 5450, which comes with a clock speed of 650 MHz and a DDR3 memory frequency of 800 MHz. It also uses a 64-bit memory bus, and uses a 40 nm design. It features 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450 19 Watts
GeForce GTX 260 182 Watts
Difference: 163 Watts (858%)

Memory Bandwidth

In theory, the GeForce GTX 260 should be quite a bit faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 260 111888 MB/sec
Radeon HD 5450 12800 MB/sec
Difference: 99088 (774%)

Texel Rate

The GeForce GTX 260 should be a lot (approximately 609%) faster with regards to anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GTX 260 36864 Mtexels/sec
Radeon HD 5450 5200 Mtexels/sec
Difference: 31664 (609%)

Pixel Rate

The GeForce GTX 260 should be a lot (about 520%) more effective at full screen anti-aliasing than the Radeon HD 5450, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 260 16128 Mpixels/sec
Radeon HD 5450 2600 Mpixels/sec
Difference: 13528 (520%)

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 260

Amazon.com

Check prices at:

Radeon HD 5450

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 260 Radeon HD 5450
Manufacturer nVidia AMD
Year June 16, 2008 February 4, 2010
Code Name G200 Cedar PRO
Memory 896 MB 512 MB
Core Speed 576 MHz 650 MHz
Memory Speed 1998 MHz 1600 MHz
Power (Max TDP) 182 watts 19 watts
Bandwidth 111888 MB/sec 12800 MB/sec
Texel Rate 36864 Mtexels/sec 5200 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 2600 Mpixels/sec
Unified Shaders 192 80(16x5)
Texture Mapping Units 64 8
Render Output Units 28 4
Bus Type GDDR3 DDR3
Bus Width 448-bit 64-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 292 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 3.2

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 260

Amazon.com

Check prices at:

Radeon HD 5450

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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