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GeForce GTX Titan vs Radeon HD 7950 3GB

Intro

The GeForce GTX Titan uses a 28 nm design. nVidia has clocked the core speed at 837 MHz. The GDDR5 RAM works at a frequency of 1502 MHz on this model. It features 2688 SPUs along with 224 TAUs and 48 ROPs.

Compare those specifications to the Radeon HD 7950 3GB, which makes use of a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory works at a speed of 1250 MHz on this specific card. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950 3GB 200 Watts
GeForce GTX Titan 250 Watts
Difference: 50 Watts (25%)

Memory Bandwidth

The GeForce GTX Titan should theoretically perform a small bit faster than the Radeon HD 7950 3GB overall. (explain)

GeForce GTX Titan 288384 MB/sec
Radeon HD 7950 3GB 240000 MB/sec
Difference: 48384 (20%)

Texel Rate

The GeForce GTX Titan is a lot (about 109%) faster with regards to AF than the Radeon HD 7950 3GB. (explain)

GeForce GTX Titan 187488 Mtexels/sec
Radeon HD 7950 3GB 89600 Mtexels/sec
Difference: 97888 (109%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX Titan is the winner, by far. (explain)

GeForce GTX Titan 40176 Mpixels/sec
Radeon HD 7950 3GB 25600 Mpixels/sec
Difference: 14576 (57%)

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

Amazon.com

Check prices at:

Radeon HD 7950 3GB

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 Titan Radeon HD 7950 3GB
Manufacturer nVidia AMD
Year February 2013 January 2012
Code Name GK110 Tahiti Pro
Memory 6144 MB 3072 MB
Core Speed 837 MHz 800 MHz
Memory Speed 6008 MHz 5000 MHz
Power (Max TDP) 250 watts 200 watts
Bandwidth 288384 MB/sec 240000 MB/sec
Texel Rate 187488 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 40176 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 2688 1792
Texture Mapping Units 224 112
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX Titan

Amazon.com

Check prices at:

Radeon HD 7950 3GB

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.

Comments

One Response to “GeForce GTX Titan vs Radeon HD 7950 3GB”
Anonymous says:

You need to check your info on some of these

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