Radeon HD 7790 vs Radeon R9 290X

Intro

Compare all of that to the Radeon R9 290X, which has a GPU core clock speed of 800 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 512-bit bus. It also is made up of 2816 Stream Processors, 176 TAUs, and 64 Raster Operation Units.

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 290X		10609 points
Radeon HD 7790		4330 points
	Difference: 6279 (145%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon R9 290X		300 Watts
	Difference: 215 Watts (253%)

Memory Bandwidth

Theoretically, the Radeon R9 290X should perform quite a bit faster than the Radeon HD 7790 in general. (explain)

Radeon R9 290X		320000 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 224000 (233%)

Texel Rate

The Radeon R9 290X is a lot (approximately 151%) faster with regards to AF than the Radeon HD 7790. (explain)

Radeon R9 290X		140800 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 84800 (151%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 290X is a better choice, and very much so. (explain)

Radeon R9 290X		51200 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 35200 (220%)

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 information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 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 high resolutions.

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

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