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Radeon HD 3650 256MB vs Radeon R7 240

Intro

The Radeon HD 3650 256MB features a GPU clock speed of 725 MHz, and the 256 MB of DDR2 RAM is set to run at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Compare that to the Radeon R7 240, which comes with core speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 memory. It features 320 SPUs as well as 20 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240 30 Watts
Radeon HD 3650 256MB 78 Watts
Difference: 48 Watts (160%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 240 is 13% faster than the Radeon HD 3650 256MB in general, because of its greater bandwidth. (explain)

Radeon R7 240 28800 MB/sec
Radeon HD 3650 256MB 25600 MB/sec
Difference: 3200 (13%)

Texel Rate

The Radeon R7 240 should be much (about 152%) faster with regards to texture filtering than the Radeon HD 3650 256MB. (explain)

Radeon R7 240 14600 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 8800 (152%)

Pixel Rate

The Radeon R7 240 will be much (approximately 101%) better at full screen anti-aliasing than the Radeon HD 3650 256MB, and also should be able to handle higher screen resolutions while still performing well. (explain)

Radeon R7 240 5840 Mpixels/sec
Radeon HD 3650 256MB 2900 Mpixels/sec
Difference: 2940 (101%)

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 256MB

Amazon.com

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Radeon R7 240

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 256MB Radeon R7 240
Manufacturer AMD AMD
Year 2008 October 2013
Code Name RV635 PRO Oland PRO
Memory 256 MB 2048 MB
Core Speed 725 MHz 730 MHz
Memory Speed 1600 MHz 1800 MHz
Power (Max TDP) 78 watts 30 watts
Bandwidth 25600 MB/sec 28800 MB/sec
Texel Rate 5800 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 2900 Mpixels/sec 5840 Mpixels/sec
Unified Shaders 120(24x5) 320
Texture Mapping Units 8 20
Render Output Units 4 8
Bus Type DDR2 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million 1040 million
Bus PCIe 2.0 x16/AGP 8x PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of 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 256MB

Amazon.com

Check prices at:

Radeon R7 240

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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