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GeForce GTS 450 vs Radeon HD 5750 512MB

Intro

The GeForce GTS 450 makes use of a 40 nm design. nVidia has clocked the core frequency at 783 MHz. The GDDR5 memory runs at a frequency of 902 MHz on this model. It features 192 SPUs as well as 32 Texture Address Units and 16 ROPs.

Compare those specifications to the Radeon HD 5750 512MB, which comes with core speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 36 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB 86 Watts
GeForce GTS 450 106 Watts
Difference: 20 Watts (23%)

Memory Bandwidth

In theory, the Radeon HD 5750 512MB should be quite a bit faster than the GeForce GTS 450 in general. (explain)

Radeon HD 5750 512MB 73600 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 15872 (27%)

Texel Rate

The Radeon HD 5750 512MB will be a small bit (more or less 1%) better at AF than the GeForce GTS 450. (explain)

Radeon HD 5750 512MB 25200 Mtexels/sec
GeForce GTS 450 25056 Mtexels/sec
Difference: 144 (1%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTS 450 is the winner, but it probably won't make a huge difference. (explain)

GeForce GTS 450 12528 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 1328 (12%)

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 GTS 450

Amazon.com

Check prices at:

Radeon HD 5750 512MB

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 GTS 450 Radeon HD 5750 512MB
Manufacturer nVidia AMD
Year September 2010 October 13, 2009
Code Name GF106 Juniper LE
Memory 512 MB 512 MB
Core Speed 783 MHz 700 MHz
Memory Speed 3608 MHz 4600 MHz
Power (Max TDP) 106 watts 86 watts
Bandwidth 57728 MB/sec 73600 MB/sec
Texel Rate 25056 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 192 720(144x5)
Texture Mapping Units 32 36
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1040 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 in one second. This 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 450

Amazon.com

Check prices at:

Radeon HD 5750 512MB

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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