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Radeon R5 M330 vs Radeon R7 250

Intro

The Radeon R5 M330 comes with a clock speed of 1030 MHz and a DDR3 memory speed of 900 MHz. It also makes use of a 64-bit memory bus, and uses a 28 nm design. It features 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Compare that to the Radeon R7 250, which has core speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 will be 411% quicker than the Radeon R5 M330 in general, because of its greater bandwidth. (explain)

Radeon R7 250 73600 MB/sec
Radeon R5 M330 14400 MB/sec
Difference: 59200 (411%)

Texel Rate

The Radeon R7 250 should be a little bit (about 17%) faster with regards to texture filtering than the Radeon R5 M330. (explain)

Radeon R7 250 24000 Mtexels/sec
Radeon R5 M330 20600 Mtexels/sec
Difference: 3400 (17%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R5 M330 is superior to the Radeon R7 250, but it probably won't make a huge difference. (explain)

Radeon R5 M330 8240 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 240 (3%)

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

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Radeon R7 250

Amazon.com

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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 R7 250
Manufacturer AMD AMD
Year 2015 October 2013
Code Name Oland Oland XT
Memory 2048 MB 1024 MB
Core Speed 1030 MHz 1000 MHz
Memory Speed 1800 MHz 4600 MHz
Power (Max TDP) (Unknown) watts 65 watts
Bandwidth 14400 MB/sec 73600 MB/sec
Texel Rate 20600 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 8240 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 320 384
Texture Mapping Units 20 24
Render Output Units 8 8
Bus Type DDR3 GDDR5
Bus Width 64-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 1040 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 data (in units of megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, especially 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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Radeon R5 M330

Amazon.com

Check prices at:

Radeon R7 250

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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