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GeForce GTX 960M vs Radeon HD 6770 1GB

Intro

The GeForce GTX 960M uses a 28 nm design. nVidia has set the core frequency at 1096 MHz. The GDDR5 memory works at a speed of 1000 MHz on this specific model. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 6770 1GB, which makes use of a 40 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM works at a frequency of 1050 MHz on this card. It features 800 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M 65 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 43 Watts (66%)

Memory Bandwidth

The Radeon HD 6770 1GB, in theory, should perform just a bit faster than the GeForce GTX 960M in general. (explain)

Radeon HD 6770 1GB 67200 MB/sec
GeForce GTX 960M 64000 MB/sec
Difference: 3200 (5%)

Texel Rate

The GeForce GTX 960M will be much (about 22%) faster with regards to texture filtering than the Radeon HD 6770 1GB. (explain)

GeForce GTX 960M 43840 Mtexels/sec
Radeon HD 6770 1GB 36000 Mtexels/sec
Difference: 7840 (22%)

Pixel Rate

The GeForce GTX 960M is much (more or less 22%) more effective at FSAA than the Radeon HD 6770 1GB, and should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 960M 17536 Mpixels/sec
Radeon HD 6770 1GB 14400 Mpixels/sec
Difference: 3136 (22%)

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

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Radeon HD 6770 1GB

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 960M Radeon HD 6770 1GB
Manufacturer nVidia AMD
Year March 12 2015 January 2011
Code Name GM107 Juniper XT
Memory 2048 MB 1024 MB
Core Speed 1096 MHz 900 MHz
Memory Speed 4000 MHz 4200 MHz
Power (Max TDP) 65 watts 108 watts
Bandwidth 64000 MB/sec 67200 MB/sec
Texel Rate 43840 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 17536 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 640 800
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 1040 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics 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 most pixels that the graphics chip could possibly record to the 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 clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 960M

Amazon.com

Check prices at:

Radeon HD 6770 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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