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GeForce GTX Titan X vs Radeon HD 6770

Intro

The GeForce GTX Titan X features a GPU core clock speed of 1000 MHz, and the 12288 MB of GDDR5 RAM is set to run at 1750 MHz through a 384-bit bus. It also is made up of 3072 Stream Processors, 192 TAUs, and 96 Raster Operation Units.

Compare those specifications to the Radeon HD 6770, which features clock speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 RAM. It features 800 SPUs along with 40 Texture Address Units and 16 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX Titan X 17879 points
Radeon HD 6770 1520 points
Difference: 16359 (1076%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 108 Watts
GeForce GTX Titan X 250 Watts
Difference: 142 Watts (131%)

Memory Bandwidth

In theory, the GeForce GTX Titan X is 400% faster than the Radeon HD 6770 overall, due to its higher data rate. (explain)

GeForce GTX Titan X 336000 MB/sec
Radeon HD 6770 67200 MB/sec
Difference: 268800 (400%)

Texel Rate

The GeForce GTX Titan X is quite a bit (approximately 433%) more effective at anisotropic filtering than the Radeon HD 6770. (explain)

GeForce GTX Titan X 192000 Mtexels/sec
Radeon HD 6770 36000 Mtexels/sec
Difference: 156000 (433%)

Pixel Rate

The GeForce GTX Titan X should be a lot (about 567%) better at anti-aliasing than the Radeon HD 6770, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan X 96000 Mpixels/sec
Radeon HD 6770 14400 Mpixels/sec
Difference: 81600 (567%)

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 Titan X

Amazon.com

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Radeon HD 6770

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 Titan X Radeon HD 6770
Manufacturer nVidia AMD
Year March 2015 January 2011
Code Name GM200 Juniper XT
Memory 12288 MB 512 MB
Core Speed 1000 MHz 900 MHz
Memory Speed 7000 MHz 4200 MHz
Power (Max TDP) 250 watts 108 watts
Bandwidth 336000 MB/sec 67200 MB/sec
Texel Rate 192000 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 3072 800
Texture Mapping Units 192 40
Render Output Units 96 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 40 nm
Transistors 8000 million 1040 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 12.0 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX Titan X

Amazon.com

Check prices at:

Radeon HD 6770

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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