GeForce GTX 470 vs Radeon HD 7750

Intro

Compare that to the Radeon HD 7750, which makes use of a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory is set to run at a speed of 1125 MHz on this card. It features 512 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 470		2937 points
Radeon HD 7750		2240 points
	Difference: 697 (31%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 470		215 Watts
	Difference: 160 Watts (291%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 will be 86% faster than the Radeon HD 7750 overall, because of its higher data rate. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 61920 (86%)

Texel Rate

The GeForce GTX 470 will be much (about 33%) better at AF than the Radeon HD 7750. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 8392 (33%)

Pixel Rate

The GeForce GTX 470 will be a lot (more or less 90%) more effective at full screen anti-aliasing than the Radeon HD 7750, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 11480 (90%)

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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be applied per second. This is worked out by multiplying the total number of 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.