GeForce GTX 750 vs Radeon HD 4850 512MB

Intro

Compare all of that to the Radeon HD 4850 512MB, which has a core clock speed of 625 MHz and a GDDR3 memory speed of 993 MHz. It also features a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 4850 512MB		110 Watts
	Difference: 55 Watts (100%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should in theory be a lot superior to the Radeon HD 4850 512MB in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 4850 512MB		63552 MB/sec
	Difference: 16448 (26%)

Texel Rate

The GeForce GTX 750 should be much (more or less 31%) better at AF than the Radeon HD 4850 512MB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 4850 512MB		25000 Mtexels/sec
	Difference: 7640 (31%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 750 is superior to the Radeon HD 4850 512MB, by a large margin. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 4850 512MB		10000 Mpixels/sec
	Difference: 6320 (63%)

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 megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 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.