GeForce GTX 470 vs Radeon HD 6790

Intro

Compare all of that to the Radeon HD 6790, which features a core clock frequency of 840 MHz and a GDDR5 memory frequency of 1050 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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 6790		2150 points
	Difference: 787 (37%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce GTX 470		215 Watts
	Difference: 65 Watts (43%)

Memory Bandwidth

In theory, the Radeon HD 6790 should be 0% quicker than the GeForce GTX 470 in general, due to its higher data rate. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 470		133920 MB/sec
	Difference: 480 (0%)

Texel Rate

The GeForce GTX 470 will be a small bit (about 1%) better at AF than the Radeon HD 6790. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 392 (1%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 470 is superior to the Radeon HD 6790, by a large margin. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 10840 (81%)

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 largest amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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