GeForce GTS 450 1GB vs Radeon HD 5570

Intro

Compare all that to the Radeon HD 5570, which features core speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 memory. It features 400(80x5) SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 63 Watts (147%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 1GB will be 100% faster than the Radeon HD 5570 in general, because of its higher data rate. (explain)

GeForce GTS 450 1GB		57728 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 28928 (100%)

Texel Rate

The GeForce GTS 450 1GB should be much (more or less 93%) better at AF than the Radeon HD 5570. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 12056 (93%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTS 450 1GB is a better choice, and very much so. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 7328 (141%)

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: Bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card 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 chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.