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GeForce GTX 965M vs Radeon HD 3850 256MB

Intro

The GeForce GTX 965M makes use of a 28 nm design. nVidia has set the core frequency at 944 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this specific card. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

Compare all that to the Radeon HD 3850 256MB, which features a clock frequency of 668 MHz and a GDDR3 memory frequency of 828 MHz. It also makes use of a 256-bit memory bus, and makes use of a 55 nm design. It is made up of 320(64x5) SPUs, 16 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
Radeon HD 3850 256MB 75 Watts
Difference: 15 Watts (25%)

Memory Bandwidth

The GeForce GTX 965M should theoretically perform quite a bit faster than the Radeon HD 3850 256MB in general. (explain)

GeForce GTX 965M 64000 MB/sec
Radeon HD 3850 256MB 52992 MB/sec
Difference: 11008 (21%)

Texel Rate

The GeForce GTX 965M should be a lot (about 465%) faster with regards to anisotropic filtering than the Radeon HD 3850 256MB. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon HD 3850 256MB 10688 Mtexels/sec
Difference: 49728 (465%)

Pixel Rate

The GeForce GTX 965M is a lot (about 183%) more effective at anti-aliasing than the Radeon HD 3850 256MB, and also should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 3850 256MB 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 256MB

Amazon.com

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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 256MB
Manufacturer nVidia AMD
Year January 5 2015 Nov 19, 2007
Code Name GM204 RV670 PRO
Memory 2048 MB 256 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 max amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount 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 processed in one second.

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