Geforce GTX 760 vs Radeon HD 4850 512MB

Intro

Compare all of that to the Radeon HD 4850 512MB, which features core speeds of 625 MHz on the GPU, and 993 MHz on the 512 MB of GDDR3 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 512MB		110 Watts
Geforce GTX 760		170 Watts
	Difference: 60 Watts (55%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 760 should in theory be much better than the Radeon HD 4850 512MB in general. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 4850 512MB		63552 MB/sec
	Difference: 128704 (203%)

Texel Rate

The Geforce GTX 760 is quite a bit (more or less 276%) better at AF than the Radeon HD 4850 512MB. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 4850 512MB		25000 Mtexels/sec
	Difference: 69080 (276%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 760 is the winner, by a large margin. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 4850 512MB		10000 Mpixels/sec
	Difference: 21360 (214%)

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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 bandwidth is, the lower the potential to reach the max fill rate.