GeForce GT 440 1.5GB vs Radeon HD 6790

Intro

Compare those specs to the Radeon HD 6790, which comes with core speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 800 SPUs as well as 40 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

Radeon HD 6790		2150 points
GeForce GT 440 1.5GB		840 points
	Difference: 1310 (156%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 6790		150 Watts
	Difference: 94 Watts (168%)

Memory Bandwidth

In theory, the Radeon HD 6790 should be a lot faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 91200 (211%)

Texel Rate

The Radeon HD 6790 should be quite a bit (more or less 136%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 6790		33600 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 19344 (136%)

Pixel Rate

The GeForce GT 440 1.5GB is a little bit (more or less 6%) faster with regards to anti-aliasing than the Radeon HD 6790, and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 816 (6%)

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 maximum amount of information (in units of MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.