GeForce GTX 650 Ti 2GB vs Radeon HD 4550 512MB

Intro

Compare all that to the Radeon HD 4550 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 600 MHz. The GDDR3 memory runs at a speed of 800 MHz on this particular card. It features 80(16x5) SPUs along with 8 Texture Address Units 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 650 Ti 2GB		110 Watts
	Difference: 85 Watts (340%)

Memory Bandwidth

The GeForce GTX 650 Ti 2GB should theoretically be quite a bit faster than the Radeon HD 4550 512MB in general. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 73600 (575%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be quite a bit (approximately 1137%) better at anisotropic filtering than the Radeon HD 4550 512MB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 54592 (1137%)

Pixel Rate

The GeForce GTX 650 Ti 2GB should be quite a bit (approximately 519%) faster with regards to full screen anti-aliasing than the Radeon HD 4550 512MB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 12448 (519%)

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 information (measured in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 per second. This number is worked out by multiplying the total 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.