GeForce GTX 750 Ti vs Radeon HD 4870 2GB

Intro

Compare all that to the Radeon HD 4870 2GB, which makes use of a 55 nm design. AMD has set the core speed at 750 MHz. The GDDR5 memory works at a frequency of 900 MHz on this particular card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
Radeon HD 4870 2GB		150 Watts
	Difference: 90 Watts (150%)

Memory Bandwidth

The Radeon HD 4870 2GB should in theory be a lot faster than the GeForce GTX 750 Ti in general. (explain)

Radeon HD 4870 2GB		115200 MB/sec
GeForce GTX 750 Ti		86400 MB/sec
	Difference: 28800 (33%)

Texel Rate

The GeForce GTX 750 Ti will be a lot (more or less 36%) better at AF than the Radeon HD 4870 2GB. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon HD 4870 2GB		30000 Mtexels/sec
	Difference: 10800 (36%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 750 Ti is superior to the Radeon HD 4870 2GB, by far. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 4870 2GB		12000 Mpixels/sec
	Difference: 4320 (36%)

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 max amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure 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 outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.