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GeForce GTS 450 vs Radeon HD 4730

Intro

The GeForce GTS 450 features a GPU core speed of 783 MHz, and the 512 MB of GDDR5 RAM runs at 902 MHz through a 128-bit bus. It also is comprised of 192 SPUs, 32 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon HD 4730, which comes with clock speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 memory. It features 640(128x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 106 Watts
Radeon HD 4730 140 Watts
Difference: 34 Watts (32%)

Memory Bandwidth

In theory, the GeForce GTS 450 should be 0% quicker than the Radeon HD 4730 in general, because of its greater bandwidth. (explain)

GeForce GTS 450 57728 MB/sec
Radeon HD 4730 57600 MB/sec
Difference: 128 (0%)

Texel Rate

The GeForce GTS 450 should be a bit (more or less 12%) better at texture filtering than the Radeon HD 4730. (explain)

GeForce GTS 450 25056 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 2656 (12%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTS 450 is a better choice, and very much so. (explain)

GeForce GTS 450 12528 Mpixels/sec
Radeon HD 4730 5600 Mpixels/sec
Difference: 6928 (124%)

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 4730

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 4730
Manufacturer nVidia AMD
Year September 2010 Jun 8, 2009
Code Name GF106 RV770/CE
Memory 512 MB 512 MB
Core Speed 783 MHz 700 MHz
Memory Speed 3608 MHz 3600 MHz
Power (Max TDP) 106 watts 140 watts
Bandwidth 57728 MB/sec 57600 MB/sec
Texel Rate 25056 Mtexels/sec 22400 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 5600 Mpixels/sec
Unified Shaders 192 640(128x5)
Texture Mapping Units 32 32
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 1170 million 956 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher 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 maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 450

Amazon.com

Check prices at:

Radeon HD 4730

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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