GeForce GTS 250 1GB vs Radeon HD 6450 (OEM)

Intro

Compare all that to the Radeon HD 6450 (OEM), which features a clock speed of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 64-bit bus, and uses a 40 nm design. It is comprised of 160 SPUs, 8 Texture Address Units, 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 250 1GB		145 Watts
	Difference: 114 Watts (368%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 1GB will be 450% quicker than the Radeon HD 6450 (OEM) overall, because of its greater data rate. (explain)

GeForce GTS 250 1GB		70400 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 57600 (450%)

Texel Rate

The GeForce GTS 250 1GB should be quite a bit (approximately 845%) better at AF than the Radeon HD 6450 (OEM). (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 42232 (845%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTS 250 1GB is superior to the Radeon HD 6450 (OEM), by far. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 9308 (372%)

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 (in units of MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.