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GeForce GTX 260 Core 216 vs Radeon RX 550

Intro

The GeForce GTX 260 Core 216 features a clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also features a 448-bit memory bus, and makes use of a 65 nm design. It is made up of 216 SPUs, 72 TAUs, and 28 ROPs.

Compare all that to the Radeon RX 550, which makes use of a 14 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 RAM runs at a speed of 1750 MHz on this specific model. It features 512 SPUs as well as 32 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 152 Watts (304%)

Memory Bandwidth

In theory, the Radeon RX 550 should be just a bit faster than the GeForce GTX 260 Core 216 overall. (explain)

Radeon RX 550		114688 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 2800 (3%)

Texel Rate

The GeForce GTX 260 Core 216 will be a bit (approximately 18%) faster with regards to texture filtering than the Radeon RX 550. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 6272 (18%)

Pixel Rate

The Radeon RX 550 is a little bit (about 9%) faster with regards to anti-aliasing than the GeForce GTX 260 Core 216, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 550		17600 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 1472 (9%)

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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GeForce GTX 260 Core 216

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Radeon RX 550

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Specifications

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Model	GeForce GTX 260 Core 216	Radeon RX 550
Manufacturer	nVidia	AMD
Year	September 16, 2008	April 2017
Code Name	G200	Polaris 12
Memory	896 MB	2048 MB
Core Speed	576 MHz	1100 MHz
Memory Speed	1998 MHz	7000 MHz
Power (Max TDP)	202 watts	50 watts
Bandwidth	111888 MB/sec	114688 MB/sec
Texel Rate	41472 Mtexels/sec	35200 Mtexels/sec
Pixel Rate	16128 Mpixels/sec	17600 Mpixels/sec
Unified Shaders	216	512
Texture Mapping Units	72	32
Render Output Units	28	16
Bus Type	GDDR3	GDDR5
Bus Width	448-bit	128-bit
Fab Process	65 nm	14 nm
Transistors	1400 million	2200 million
Bus	PCIe x16 2.0	PCIe 3.0 x16
DirectX Version	DirectX 10	DirectX 12.0
OpenGL Version	OpenGL 3.1	OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

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