Radeon HD 5770 vs Radeon R9 280X

Intro

Compare all that to the Radeon R9 280X, which comes with core clock speeds of 850 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
Radeon R9 280X		250 Watts
	Difference: 142 Watts (131%)

Memory Bandwidth

As far as performance goes, the Radeon R9 280X should theoretically be quite a bit better than the Radeon HD 5770 in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 211200 (275%)

Texel Rate

The Radeon R9 280X is quite a bit (more or less 220%) faster with regards to AF than the Radeon HD 5770. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 74800 (220%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 280X is a better choice, and very much so. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 13600 (100%)

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 max amount of information (counted in megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, 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 amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.