Radeon HD 5770 vs Radeon R9 280

Intro

Compare all of that to the Radeon R9 280, which has core speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Radeon R9 280 should theoretically perform quite a bit faster than the Radeon HD 5770 overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 163200 (213%)

Texel Rate

The Radeon R9 280 will be quite a bit (approximately 207%) more effective at AF than the Radeon HD 5770. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 70496 (207%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 280 is a better choice, by far. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 16256 (120%)

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 (measured in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.