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Radeon HD 3650 vs Radeon R7 M265

Intro

The Radeon HD 3650 comes with a GPU core speed of 725 MHz, and the 1024 MB of GDDR4 RAM is set to run at 800 MHz through a 128-bit bus. It also features 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Compare those specs to the Radeon R7 M265, which makes use of a 28 nm design. AMD has set the core speed at 725 MHz. The DDR3 RAM is set to run at a frequency of 1000 MHz on this model. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R7 M265 should in theory be much superior to the Radeon HD 3650 in general. (explain)

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

Texel Rate

The Radeon R7 M265 should be a lot (more or less 200%) more effective at AF 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 is quite a bit (approximately 100%) more effective at anti-aliasing than the Radeon HD 3650, and should be capable of handling higher screen resolutions without slowing down too much. (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

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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 MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher 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 most pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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