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

Intro

Compare those specifications to the Radeon HD 6450 (OEM), which has a core clock frequency of 625 MHz and a GDDR3 memory speed of 800 MHz. It also uses a 64-bit memory bus, and uses a 40 nm design. It features 160 SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 1GB should be much faster than the Radeon HD 6450 (OEM) in general. (explain)

GeForce GTS 450 1GB		57728 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 44928 (351%)

Texel Rate

The GeForce GTS 450 1GB should be quite a bit (more or less 401%) better at anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 20056 (401%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTS 450 1GB is superior to the Radeon HD 6450 (OEM), by a large margin. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 10028 (401%)

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 (counted in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling 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 could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 memory bandwidth is, the lower the ability to get to the maximum fill rate.