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GeForce 940M vs Radeon HD 3650 256MB

Intro

The GeForce 940M comes with clock speeds of 1072 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Compare all of that to the Radeon HD 3650 256MB, which has core speeds of 725 MHz on the GPU, and 800 MHz on the 256 MB of DDR2 RAM. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 3650 256MB should perform much faster than the GeForce 940M in general. (explain)

Radeon HD 3650 256MB 25600 MB/sec
GeForce 940M 16000 MB/sec
Difference: 9600 (60%)

Texel Rate

The GeForce 940M will be quite a bit (approximately 344%) faster with regards to AF than the Radeon HD 3650 256MB. (explain)

GeForce 940M 25728 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 19928 (344%)

Pixel Rate

The GeForce 940M should be quite a bit (about 196%) faster with regards to FSAA than the Radeon HD 3650 256MB, and also should be able to handle higher resolutions more effectively. (explain)

GeForce 940M 8576 Mpixels/sec
Radeon HD 3650 256MB 2900 Mpixels/sec
Difference: 5676 (196%)

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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GeForce 940M

Amazon.com

Check prices at:

Radeon HD 3650 256MB

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 GeForce 940M Radeon HD 3650 256MB
Manufacturer nVidia AMD
Year March 12 2015 2008
Code Name GM108 RV635 PRO
Memory 2048 MB 256 MB
Core Speed 1072 MHz 725 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) (Unknown) watts 78 watts
Bandwidth 16000 MB/sec 25600 MB/sec
Texel Rate 25728 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 8576 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 384 120(24x5)
Texture Mapping Units 24 8
Render Output Units 8 4
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. 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 rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 940M

Amazon.com

Check prices at:

Radeon HD 3650 256MB

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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