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GeForce GTX 965M vs Radeon HD 3850 512MB

Intro

The GeForce GTX 965M comes with a GPU core clock speed of 944 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1000 MHz through a 128-bit bus. It also features 1024 Stream Processors, 64 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 3850 512MB, which comes with clock speeds of 668 MHz on the GPU, and 828 MHz on the 512 MB of GDDR3 memory. It features 320(64x5) SPUs along with 16 Texture Address Units 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 512MB 75 Watts
Difference: 15 Watts (25%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 965M should theoretically be a lot superior to the Radeon HD 3850 512MB in general. (explain)

GeForce GTX 965M 64000 MB/sec
Radeon HD 3850 512MB 52992 MB/sec
Difference: 11008 (21%)

Texel Rate

The GeForce GTX 965M should be quite a bit (approximately 465%) faster with regards to anisotropic filtering than the Radeon HD 3850 512MB. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon HD 3850 512MB 10688 Mtexels/sec
Difference: 49728 (465%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 965M is the winner, and very much so. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 3850 512MB 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

Check prices at:

Radeon HD 3850 512MB

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 512MB
Manufacturer nVidia AMD
Year January 5 2015 Nov 19, 2007
Code Name GM204 RV670 PRO
Memory 2048 MB 512 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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 965M

Amazon.com

Check prices at:

Radeon HD 3850 512MB

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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