GeForce GTX 465 vs Radeon HD 4730

Intro

Compare those specs to the Radeon HD 4730, which features a clock speed of 700 MHz and a GDDR5 memory speed of 900 MHz. It also features a 128-bit bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730		140 Watts
GeForce GTX 465		200 Watts
	Difference: 60 Watts (43%)

Memory Bandwidth

Performance-wise, the GeForce GTX 465 should in theory be a lot better than the Radeon HD 4730 in general. (explain)

GeForce GTX 465		102592 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 44992 (78%)

Texel Rate

The GeForce GTX 465 should be a little bit (approximately 19%) more effective at AF than the Radeon HD 4730. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 4308 (19%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 465 is the winner, and very much so. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 13824 (247%)

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 transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.