GeForce GTX 460 (OEM) vs Radeon HD 4850 1GB

Intro

Compare those specs to the Radeon HD 4850 1GB, which makes use of a 55 nm design. AMD has clocked the core frequency at 625 MHz. The GDDR4 RAM works at a frequency of 993 MHz on this particular model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 1GB		110 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 40 Watts (36%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 (OEM) should perform quite a bit faster than the Radeon HD 4850 1GB overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 4850 1GB		63552 MB/sec
	Difference: 45248 (71%)

Texel Rate

The GeForce GTX 460 (OEM) is much (more or less 46%) faster with regards to anisotropic filtering than the Radeon HD 4850 1GB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 4850 1GB		25000 Mtexels/sec
	Difference: 11400 (46%)

Pixel Rate

The GeForce GTX 460 (OEM) will be much (approximately 108%) faster with regards to anti-aliasing than the Radeon HD 4850 1GB, and also able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 4850 1GB		10000 Mpixels/sec
	Difference: 10800 (108%)

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 maximum amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.