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GeForce GTX 960M vs Radeon HD 4850 2GB

Intro

The GeForce GTX 960M has a GPU clock speed of 1096 MHz, and the 2048 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon HD 4850 2GB, which has GPU clock speed of 625 MHz, and 2048 MB of GDDR4 memory running at 993 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M 65 Watts
Radeon HD 4850 2GB 110 Watts
Difference: 45 Watts (69%)

Memory Bandwidth

Performance-wise, the GeForce GTX 960M should theoretically be a small bit better than the Radeon HD 4850 2GB in general. (explain)

GeForce GTX 960M 64000 MB/sec
Radeon HD 4850 2GB 63552 MB/sec
Difference: 448 (1%)

Texel Rate

The GeForce GTX 960M will be quite a bit (approximately 75%) better at anisotropic filtering than the Radeon HD 4850 2GB. (explain)

GeForce GTX 960M 43840 Mtexels/sec
Radeon HD 4850 2GB 25000 Mtexels/sec
Difference: 18840 (75%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 960M is the winner, by far. (explain)

GeForce GTX 960M 17536 Mpixels/sec
Radeon HD 4850 2GB 10000 Mpixels/sec
Difference: 7536 (75%)

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 960M

Amazon.com

Check prices at:

Radeon HD 4850 2GB

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 960M Radeon HD 4850 2GB
Manufacturer nVidia AMD
Year March 12 2015 Jun 25, 2008
Code Name GM107 RV770 PRO
Memory 2048 MB 2048 MB
Core Speed 1096 MHz 625 MHz
Memory Speed 4000 MHz 1986 MHz
Power (Max TDP) 65 watts 110 watts
Bandwidth 64000 MB/sec 63552 MB/sec
Texel Rate 43840 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 17536 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 640 800(160x5)
Texture Mapping Units 40 40
Render Output Units 16 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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 960M

Amazon.com

Check prices at:

Radeon HD 4850 2GB

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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