Geforce GTX 760 vs Radeon HD 4850 512MB

Intro

Compare all that to the Radeon HD 4850 512MB, which has GPU core speed of 625 MHz, and 512 MB of GDDR3 RAM running at 993 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 ROPs.

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

Performance-wise, the Geforce GTX 760 should theoretically be much better than the Radeon HD 4850 512MB overall. (explain)

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

Texel Rate

The Geforce GTX 760 will be much (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

The Geforce GTX 760 should be quite a bit (more or less 214%) faster with regards to anti-aliasing than the Radeon HD 4850 512MB, and also will be capable of handling higher resolutions better. (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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.