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Radeon HD 7790 vs Radeon R7 360

Intro

The Radeon HD 7790 has core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Compare those specifications to the Radeon R7 360, which comes with a core clock speed of 1050 MHz and a GDDR5 memory frequency of 1625 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 768 SPUs, 48 TAUs, and 16 ROPs.

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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

As far as performance goes, the Radeon R7 360 should theoretically be just a bit better than the Radeon HD 7790 in general. (explain)

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

Texel Rate

The Radeon HD 7790 will be a little bit (about 11%) more effective at AF 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 will be just a bit (approximately 5%) faster with regards to AA than the Radeon HD 7790, and also capable of handling higher resolutions more effectively. (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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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: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out 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 is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

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