Radeon HD 7790 vs Radeon R9 380X

Intro

Compare those specifications to the Radeon R9 380X, which comes with core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 380X		9519 points
Radeon HD 7790		4330 points
	Difference: 5189 (120%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon R9 380X		190 Watts
	Difference: 105 Watts (124%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380X should in theory be quite a bit superior to the Radeon HD 7790 in general. (explain)

Radeon R9 380X		182400 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 86400 (90%)

Texel Rate

The Radeon R9 380X is much (approximately 122%) better at anisotropic filtering than the Radeon HD 7790. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 68160 (122%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 380X is a better choice, by a large margin. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 15040 (94%)

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 maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.