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Radeon R5 M330 vs Radeon R9 M270X

Intro

The Radeon R5 M330 comes with a GPU core clock speed of 1030 MHz, and the 2048 MB of DDR3 RAM runs at 900 MHz through a 64-bit bus. It also features 320 Stream Processors, 20 TAUs, and 8 Raster Operation Units.

Compare those specifications to the Radeon R9 M270X, which features a core clock speed of 725 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M270X will be 400% faster than the Radeon R5 M330 overall, due to its greater bandwidth. (explain)

Radeon R9 M270X 72000 MB/sec
Radeon R5 M330 14400 MB/sec
Difference: 57600 (400%)

Texel Rate

The Radeon R9 M270X is quite a bit (about 41%) better at anisotropic filtering than the Radeon R5 M330. (explain)

Radeon R9 M270X 29000 Mtexels/sec
Radeon R5 M330 20600 Mtexels/sec
Difference: 8400 (41%)

Pixel Rate

The Radeon R9 M270X should be much (about 41%) faster with regards to FSAA than the Radeon R5 M330, and also able to handle higher resolutions more effectively. (explain)

Radeon R9 M270X 11600 Mpixels/sec
Radeon R5 M330 8240 Mpixels/sec
Difference: 3360 (41%)

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 R5 M330

Amazon.com

Check prices at:

Radeon R9 M270X

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 Radeon R5 M330 Radeon R9 M270X
Manufacturer AMD AMD
Year 2015 May 1 2014
Code Name Oland Venus XT
Memory 2048 MB 2048 MB
Core Speed 1030 MHz 725 MHz
Memory Speed 1800 MHz 4500 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 14400 MB/sec 72000 MB/sec
Texel Rate 20600 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 8240 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 320 640
Texture Mapping Units 20 40
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 64-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, 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 most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon R5 M330

Amazon.com

Check prices at:

Radeon R9 M270X

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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