Radeon HD 7790 vs Radeon R9 380X

Intro

Compare those specs to the Radeon R9 380X, which features core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 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

In theory, the Radeon R9 380X should perform much faster than the Radeon HD 7790 overall. (explain)

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

Texel Rate

The Radeon R9 380X is much (about 122%) faster with regards to 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 a high screen resolution is important to you, then the Radeon R9 380X is superior to the Radeon HD 7790, 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 MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.