GeForce GTX 465 vs Radeon HD 7750

Intro

Compare those specifications to the Radeon HD 7750, which comes with a core clock speed of 800 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 465		200 Watts
	Difference: 145 Watts (264%)

Memory Bandwidth

In theory, the GeForce GTX 465 should be 42% quicker than the Radeon HD 7750 overall, due to its higher bandwidth. (explain)

GeForce GTX 465		102592 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 30592 (42%)

Texel Rate

The GeForce GTX 465 is a small bit (about 4%) more effective at texture filtering than the Radeon HD 7750. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 1108 (4%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 465 is superior to the Radeon HD 7750, by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 6624 (52%)

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 max amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the 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 most pixels that the graphics chip can possibly record 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 clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.