Radeon HD 7790 vs Radeon R9 280

Intro

Compare all of that to the Radeon R9 280, which comes with a core clock speed of 933 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 384-bit bus, and uses a 28 nm design. It features 1792 SPUs, 112 TAUs, and 32 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 R9 280		7961 points
Radeon HD 7790		4330 points
	Difference: 3631 (84%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon R9 280		250 Watts
	Difference: 165 Watts (194%)

Memory Bandwidth

In theory, the Radeon R9 280 should be a lot faster than the Radeon HD 7790 in general. (explain)

Radeon R9 280		240000 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 144000 (150%)

Texel Rate

The Radeon R9 280 should be much (more or less 87%) faster with regards to anisotropic filtering than the Radeon HD 7790. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 48496 (87%)

Pixel Rate

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

Radeon R9 280		29856 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 13856 (87%)

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 data (in units of megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 applied in one second. This figure is calculated by multiplying the total number of texture units 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 processed per second.

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