GeForce GTS 450 1GB vs Radeon HD 4350

Intro

Compare those specifications to the Radeon HD 4350, which makes use of a 55 nm design. AMD has clocked the core speed at 575 MHz. The DDR2 memory runs at a speed of 500 MHz on this particular model. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 84 Watts (382%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 1GB should be quite a bit faster than the Radeon HD 4350 overall. (explain)

GeForce GTS 450 1GB		57728 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 49728 (622%)

Texel Rate

The GeForce GTS 450 1GB will be a lot (about 445%) faster with regards to AF than the Radeon HD 4350. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 20456 (445%)

Pixel Rate

The GeForce GTS 450 1GB will be quite a bit (about 445%) more effective at FSAA than the Radeon HD 4350, and able to handle higher resolutions more effectively. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 10228 (445%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per 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. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.