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Radeon HD 3650 vs Radeon R7 M265

Intro

The Radeon HD 3650 features a core clock speed of 725 MHz and a GDDR4 memory speed of 800 MHz. It also makes use of a 128-bit memory bus, and uses a 55 nm design. It is made up of 120(24x5) SPUs, 8 TAUs, and 4 ROPs.

Compare all that to the Radeon R7 M265, which comes with GPU core speed of 725 MHz, and 2048 MB of DDR3 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M265 will be 25% quicker than the Radeon HD 3650 overall, because of its greater bandwidth. (explain)

Radeon R7 M265 32000 MB/sec
Radeon HD 3650 25600 MB/sec
Difference: 6400 (25%)

Texel Rate

The Radeon R7 M265 is a lot (about 200%) more effective at texture filtering than the Radeon HD 3650. (explain)

Radeon R7 M265 17400 Mtexels/sec
Radeon HD 3650 5800 Mtexels/sec
Difference: 11600 (200%)

Pixel Rate

The Radeon R7 M265 should be much (more or less 100%) more effective at full screen anti-aliasing than the Radeon HD 3650, and will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R7 M265 5800 Mpixels/sec
Radeon HD 3650 2900 Mpixels/sec
Difference: 2900 (100%)

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 HD 3650

Amazon.com

Check prices at:

Radeon R7 M265

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 HD 3650 Radeon R7 M265
Manufacturer AMD AMD
Year 2008 May 1 2014
Code Name RV635 PRO Opal XT
Memory 1024 MB 2048 MB
Core Speed 725 MHz 725 MHz
Memory Speed 1600 MHz 2000 MHz
Power (Max TDP) 78 watts (Unknown) watts
Bandwidth 25600 MB/sec 32000 MB/sec
Texel Rate 5800 Mtexels/sec 17400 Mtexels/sec
Pixel Rate 2900 Mpixels/sec 5800 Mpixels/sec
Unified Shaders 120(24x5) 384
Texture Mapping Units 8 24
Render Output Units 4 8
Bus Type GDDR4 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 2.0 x16/AGP 8x PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon HD 3650

Amazon.com

Check prices at:

Radeon R7 M265

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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