GeForce GTS 450 1GB vs Radeon HD 5750 1GB

Intro

Compare all that to the Radeon HD 5750 1GB, which uses a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 RAM runs at a speed of 1150 MHz on this particular card. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 20 Watts (23%)

Memory Bandwidth

The Radeon HD 5750 1GB should in theory perform a lot faster than the GeForce GTS 450 1GB overall. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 15872 (27%)

Texel Rate

The Radeon HD 5750 1GB should be a little bit (approximately 1%) faster with regards to anisotropic filtering than the GeForce GTS 450 1GB. (explain)

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

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTS 450 1GB is superior to the Radeon HD 5750 1GB, but not by far. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
Radeon HD 5750 1GB		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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock 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 its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.