GeForce GTX 460 vs Radeon HD 4670 1GB

Intro

Compare all that to the Radeon HD 4670 1GB, which makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM runs at a frequency of 1100 MHz on this model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
GeForce GTX 460		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 should theoretically be a lot superior to the Radeon HD 4670 1GB in general. (explain)

GeForce GTX 460		86400 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 51200 (145%)

Texel Rate

The GeForce GTX 460 should be quite a bit (about 58%) more effective at texture filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 13800 (58%)

Pixel Rate

The GeForce GTX 460 is quite a bit (approximately 170%) better at AA than the Radeon HD 4670 1GB, and also capable of handling higher screen resolutions better. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 10200 (170%)

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 largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.