GeForce GTS 450 vs Radeon HD 4350

Intro

Compare all of that to the Radeon HD 4350, which comes with a core clock speed of 575 MHz and a DDR2 memory speed of 500 MHz. It also uses a 64-bit memory bus, and makes use of a 55 nm design. It features 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the GeForce GTS 450 should be quite a bit faster than the Radeon HD 4350 overall. (explain)

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

Texel Rate

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

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

Pixel Rate

The GeForce GTS 450 is a lot (approximately 445%) faster with regards to anti-aliasing than the Radeon HD 4350, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTS 450		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: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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.