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GeForce GTX 850M vs Radeon HD 3650

Intro

The GeForce GTX 850M features core clock speeds of 876 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Compare those specs to the Radeon HD 3650, which comes with a core clock frequency of 725 MHz and a GDDR4 memory frequency of 800 MHz. It also makes use of a 128-bit memory bus, and makes use of a 55 nm design. It is made up of 120(24x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
Radeon HD 3650 78 Watts
Difference: 38 Watts (95%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 850M should theoretically be a lot superior to the Radeon HD 3650 in general. (explain)

GeForce GTX 850M 32000 MB/sec
Radeon HD 3650 25600 MB/sec
Difference: 6400 (25%)

Texel Rate

The GeForce GTX 850M should be quite a bit (approximately 504%) faster with regards to anisotropic filtering than the Radeon HD 3650. (explain)

GeForce GTX 850M 35040 Mtexels/sec
Radeon HD 3650 5800 Mtexels/sec
Difference: 29240 (504%)

Pixel Rate

The GeForce GTX 850M should be much (approximately 383%) more effective at FSAA than the Radeon HD 3650, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 850M 14016 Mpixels/sec
Radeon HD 3650 2900 Mpixels/sec
Difference: 11116 (383%)

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 GTX 850M

Amazon.com

Check prices at:

Radeon HD 3650

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 GTX 850M Radeon HD 3650
Manufacturer nVidia AMD
Year March 12 2014 2008
Code Name GM107 RV635 PRO
Memory 2048 MB 1024 MB
Core Speed 876 MHz 725 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 40 watts 78 watts
Bandwidth 32000 MB/sec 25600 MB/sec
Texel Rate 35040 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 640 120(24x5)
Texture Mapping Units 40 8
Render Output Units 16 4
Bus Type DDR3 GDDR4
Bus Width 128-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 maximum amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at 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 that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 850M

Amazon.com

Check prices at:

Radeon HD 3650

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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