GeForce GT 440 1.5GB vs Radeon HD 5770

Intro

Compare all that to the Radeon HD 5770, which features GPU core speed of 850 MHz, and 1024 MB of GDDR5 RAM running at 1200 MHz through a 128-bit bus. It also is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 5770		108 Watts
	Difference: 52 Watts (93%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5770 should be 78% faster than the GeForce GT 440 1.5GB in general, because of its higher bandwidth. (explain)

Radeon HD 5770		76800 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 33600 (78%)

Texel Rate

The Radeon HD 5770 is a lot (about 138%) better at AF than the GeForce GT 440 1.5GB. (explain)

Radeon HD 5770		34000 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 19744 (138%)

Pixel Rate

The GeForce GT 440 1.5GB should be just a bit (about 5%) more effective at AA than the Radeon HD 5770, and also should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 656 (5%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.