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GeForce GTX 965M vs Radeon HD 4850 1GB

Intro

The GeForce GTX 965M features a core clock speed of 944 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Compare all of that to the Radeon HD 4850 1GB, which makes use of a 55 nm design. AMD has clocked the core frequency at 625 MHz. The GDDR4 RAM works at a speed of 993 MHz on this card. It features 800(160x5) SPUs along with 40 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 4850 1GB 110 Watts
Difference: 50 Watts (83%)

Memory Bandwidth

The GeForce GTX 965M should theoretically be a bit faster than the Radeon HD 4850 1GB in general. (explain)

GeForce GTX 965M 64000 MB/sec
Radeon HD 4850 1GB 63552 MB/sec
Difference: 448 (1%)

Texel Rate

The GeForce GTX 965M is much (more or less 142%) better at texture filtering than the Radeon HD 4850 1GB. (explain)

GeForce GTX 965M 60416 Mtexels/sec
Radeon HD 4850 1GB 25000 Mtexels/sec
Difference: 35416 (142%)

Pixel Rate

The GeForce GTX 965M will be quite a bit (about 202%) faster with regards to AA than the Radeon HD 4850 1GB, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 965M 30208 Mpixels/sec
Radeon HD 4850 1GB 10000 Mpixels/sec
Difference: 20208 (202%)

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 4850 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 4850 1GB
Manufacturer nVidia AMD
Year January 5 2015 Jun 25, 2008
Code Name GM204 RV770 PRO
Memory 2048 MB 1024 MB
Core Speed 944 MHz 625 MHz
Memory Speed 4000 MHz 1986 MHz
Power (Max TDP) 60 watts 110 watts
Bandwidth 64000 MB/sec 63552 MB/sec
Texel Rate 60416 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 1024 800(160x5)
Texture Mapping Units 64 40
Render Output Units 32 16
Bus Type GDDR5 GDDR4
Bus Width 128-bit 256-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, 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 that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 965M

Amazon.com

Check prices at:

Radeon HD 4850 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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