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GeForce GTX 965M vs Radeon HD 3850 1GB

Intro

The GeForce GTX 965M features a GPU core clock speed of 944 MHz, and the 2048 MB of GDDR5 memory runs at 1000 MHz through a 128-bit bus. It also is comprised of 1024 Stream Processors, 64 Texture Address Units, and 32 ROPs.

Compare all of that to the Radeon HD 3850 1GB, which makes use of a 55 nm design. AMD has set the core frequency at 668 MHz. The GDDR3 RAM works at a frequency of 828 MHz on this particular model. It features 320(64x5) SPUs as well as 16 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
Radeon HD 3850 1GB 75 Watts
Difference: 15 Watts (25%)

Memory Bandwidth

Theoretically, the GeForce GTX 965M should be a lot faster than the Radeon HD 3850 1GB overall. (explain)

GeForce GTX 965M 64000 MB/sec
Radeon HD 3850 1GB 52992 MB/sec
Difference: 11008 (21%)

Texel Rate

The GeForce GTX 965M will be much (about 465%) more effective at anisotropic filtering than the Radeon HD 3850 1GB. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon HD 3850 1GB 10688 Mtexels/sec
Difference: 49728 (465%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 965M is superior to the Radeon HD 3850 1GB, and very much so. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 3850 1GB 10688 Mpixels/sec
Difference: 19520 (183%)

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 965M

Amazon.com

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Radeon HD 3850 1GB

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 965M Radeon HD 3850 1GB
Manufacturer nVidia AMD
Year January 5 2015 Nov 19, 2007
Code Name GM204 RV670 PRO
Memory 2048 MB 1024 MB
Core Speed 944 MHz 668 MHz
Memory Speed 4000 MHz 1656 MHz
Power (Max TDP) 60 watts 75 watts
Bandwidth 64000 MB/sec 52992 MB/sec
Texel Rate 60416 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 1024 320(64x5)
Texture Mapping Units 64 16
Render Output Units 32 16
Bus Type GDDR5 GDDR3
Bus Width 128-bit 256-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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 965M

Amazon.com

Check prices at:

Radeon HD 3850 1GB

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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