Geforce GTX 760 vs Radeon HD 4550 512MB

Intro

Compare those specifications to the Radeon HD 4550 512MB, which makes use of a 55 nm design. AMD has set the core speed at 600 MHz. The GDDR3 RAM runs at a speed of 800 MHz on this particular model. It features 80(16x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
Geforce GTX 760		170 Watts
	Difference: 145 Watts (580%)

Memory Bandwidth

The Geforce GTX 760 should theoretically perform much faster than the Radeon HD 4550 512MB overall. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 179456 (1402%)

Texel Rate

The Geforce GTX 760 will be quite a bit (approximately 1860%) better at anisotropic filtering than the Radeon HD 4550 512MB. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 89280 (1860%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 760 is the winner, and very much so. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 28960 (1207%)

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 information (measured in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.