Geforce GTX 760 vs Radeon HD 4670 512MB

Intro

Compare those specifications to the Radeon HD 4670 512MB, which comes with GPU clock speed of 750 MHz, and 512 MB of GDDR4/GDDR3/DDR3/DDR2 memory running at 1000 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB		70 Watts
Geforce GTX 760		170 Watts
	Difference: 100 Watts (143%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 760 should perform a lot faster than the Radeon HD 4670 512MB in general. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 4670 512MB		32000 MB/sec
	Difference: 160256 (501%)

Texel Rate

The Geforce GTX 760 will be quite a bit (more or less 292%) faster with regards to AF than the Radeon HD 4670 512MB. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 4670 512MB		24000 Mtexels/sec
	Difference: 70080 (292%)

Pixel Rate

The Geforce GTX 760 is a lot (about 423%) more effective at full screen anti-aliasing than the Radeon HD 4670 512MB, and also should be capable of handling higher resolutions without losing too much performance. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 4670 512MB		6000 Mpixels/sec
	Difference: 25360 (423%)

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 MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, 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 is worked out by multiplying the total number of texture units of the card by the core 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.