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GeForce GT 320 vs Radeon RX 550

Intro

The GeForce GT 320 has a core clock speed of 540 MHz and a GDDR3 memory frequency of 790 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is made up of 72 SPUs, 24 TAUs, and 8 ROPs.

Compare all of that to the Radeon RX 550, which features GPU clock speed of 1100 MHz, and 2048 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also is made up of 512 SPUs, 32 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
Radeon RX 550 50 Watts
Difference: 7 Watts (16%)

Memory Bandwidth

In theory, the Radeon RX 550 should be much faster than the GeForce GT 320 overall. (explain)

Radeon RX 550 114688 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 89408 (354%)

Texel Rate

The Radeon RX 550 should be much (approximately 172%) faster with regards to AF than the GeForce GT 320. (explain)

Radeon RX 550 35200 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 22240 (172%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 550 is the winner, by a large margin. (explain)

Radeon RX 550 17600 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 13280 (307%)

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 GT 320

Amazon.com

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Radeon RX 550

Amazon.com

Check prices at:

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 GeForce GT 320 Radeon RX 550
Manufacturer nVidia AMD
Year February 2010 April 2017
Code Name GT215 Polaris 12
Memory 1024 MB 2048 MB
Core Speed 540 MHz 1100 MHz
Memory Speed 1580 MHz 7000 MHz
Power (Max TDP) 43 watts 50 watts
Bandwidth 25280 MB/sec 114688 MB/sec
Texel Rate 12960 Mtexels/sec 35200 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 72 512
Texture Mapping Units 24 32
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 727 million 2200 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, 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 number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 fill rate also depends 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.

Display Prices

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GeForce GT 320

Amazon.com

Check prices at:

Radeon RX 550

Amazon.com

Check prices at:

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.

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