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GeForce GT 320 vs Radeon RX 550

Intro

The GeForce GT 320 makes use of a 40 nm design. nVidia has set the core speed at 540 MHz. The GDDR3 memory works at a speed of 790 MHz on this card. It features 72 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

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

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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

As far as performance goes, the Radeon RX 550 should theoretically be a lot better than the GeForce GT 320 in general. (explain)

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

Texel Rate

The Radeon RX 550 is quite a bit (about 172%) better at texture filtering than the GeForce GT 320. (explain)

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

Pixel Rate

The Radeon RX 550 is quite a bit (more or less 307%) better at full screen anti-aliasing than the GeForce GT 320, and will be able to handle higher resolutions more effectively. (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

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.

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 maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better 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 that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max 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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