GeForce GTS 250 1GB vs Radeon HD 6750 1GB

Intro

Compare all of that to the Radeon HD 6750 1GB, which has GPU clock speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 720 Stream Processors, 36 TAUs, and 16 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 59 Watts (69%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 1GB should be a small bit faster than the Radeon HD 6750 1GB overall. (explain)

GeForce GTS 250 1GB		70400 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 6400 (10%)

Texel Rate

The GeForce GTS 250 1GB should be much (more or less 81%) better at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 21132 (81%)

Pixel Rate

The GeForce GTS 250 1GB should be a bit (approximately 2%) better at FSAA than the Radeon HD 6750 1GB, and will be able to handle higher resolutions better. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 208 (2%)

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 max amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 can be applied 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 the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.