Geforce GTX 770 vs Radeon HD 5850

Intro

Compare those specifications to the Radeon HD 5850, which makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this specific model. It features 1440(288x5) SPUs along with 72 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850		151 Watts
Geforce GTX 770		230 Watts
	Difference: 79 Watts (52%)

Memory Bandwidth

The Geforce GTX 770, in theory, should perform quite a bit faster than the Radeon HD 5850 overall. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 5850		128000 MB/sec
	Difference: 96384 (75%)

Texel Rate

The Geforce GTX 770 will be quite a bit (about 156%) more effective at anisotropic filtering than the Radeon HD 5850. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 5850		52200 Mtexels/sec
	Difference: 81688 (156%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 770 is a better choice, by far. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 5850		23200 Mpixels/sec
	Difference: 10272 (44%)

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 information (counted in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.