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Radeon HD 7790 vs Radeon R7 360

Intro

The Radeon HD 7790 comes with a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Compare all that to the Radeon R7 360, which uses a 28 nm design. AMD has clocked the core frequency at 1050 MHz. The GDDR5 memory works at a speed of 1625 MHz on this specific model. It features 768 SPUs along with 48 Texture Address Units and 16 Rasterization Operator Units.

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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 HD 7790		4330 points
Radeon R7 360		4110 points
	Difference: 220 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon R7 360		100 Watts
	Difference: 15 Watts (18%)

Memory Bandwidth

The Radeon R7 360, in theory, should be a little bit faster than the Radeon HD 7790 overall. (explain)

Radeon R7 360		104000 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 8000 (8%)

Texel Rate

The Radeon HD 7790 is a little bit (more or less 11%) more effective at texture filtering than the Radeon R7 360. (explain)

Radeon HD 7790		56000 Mtexels/sec
Radeon R7 360		50400 Mtexels/sec
	Difference: 5600 (11%)

Pixel Rate

The Radeon R7 360 should be a small bit (approximately 5%) more effective at full screen anti-aliasing than the Radeon HD 7790, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon R7 360		16800 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 800 (5%)

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

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Radeon HD 7790

Amazon.com

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Radeon R7 360

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	Radeon HD 7790	Radeon R7 360
Manufacturer	AMD	AMD
Year	March 2013	June 2015
Code Name	Bonaire XT	Tobago
Memory	1024 MB	2048 MB
Core Speed	1000 MHz	1050 MHz
Memory Speed	6000 MHz	6500 MHz
Power (Max TDP)	85 watts	100 watts
Bandwidth	96000 MB/sec	104000 MB/sec
Texel Rate	56000 Mtexels/sec	50400 Mtexels/sec
Pixel Rate	16000 Mpixels/sec	16800 Mpixels/sec
Unified Shaders	896	768
Texture Mapping Units	56	48
Render Output Units	16	16
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
Fab Process	28 nm	28 nm
Transistors	2080 million	2080 million
Bus	PCIe 3.0 x16	PCIe 3.0 ×16
DirectX Version	DirectX 11.1	DirectX 12.0
OpenGL Version	OpenGL 4.3	OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

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