GeForce GTS 450 1GB vs Radeon HD 6450 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which comes with a core clock speed of 750 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 64-bit bus, and uses a 40 nm design. It features 160 SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 75 Watts (242%)

Memory Bandwidth

Performance-wise, the GeForce GTS 450 1GB should theoretically be quite a bit superior to the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GTS 450 1GB		57728 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 28928 (100%)

Texel Rate

The GeForce GTS 450 1GB is much (about 318%) better at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 19056 (318%)

Pixel Rate

The GeForce GTS 450 1GB is quite a bit (more or less 318%) faster with regards to FSAA than the Radeon HD 6450 (OEM) 1GB, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 9528 (318%)

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 data (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.