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GeForce GTX 1660 Ti vs Radeon HD 7950

Intro

The GeForce GTX 1660 Ti has a core clock speed of 1500 MHz and a GDDR6 memory speed of 1500 MHz. It also features a 192-bit memory bus, and makes use of a 12 nm design. It is made up of 1536 SPUs, 96 TAUs, and 48 Raster Operation Units.

Compare those specifications to the Radeon HD 7950, which makes use of a 28 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory is set to run at a speed of 1250 MHz on this particular model. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Radeon HD 7950 200 Watts
Difference: 80 Watts (67%)

Memory Bandwidth

The GeForce GTX 1660 Ti should theoretically perform quite a bit faster than the Radeon HD 7950 overall. (explain)

GeForce GTX 1660 Ti 294912 MB/sec
Radeon HD 7950 240000 MB/sec
Difference: 54912 (23%)

Texel Rate

The GeForce GTX 1660 Ti should be much (more or less 61%) faster with regards to anisotropic filtering than the Radeon HD 7950. (explain)

GeForce GTX 1660 Ti 144000 Mtexels/sec
Radeon HD 7950 89600 Mtexels/sec
Difference: 54400 (61%)

Pixel Rate

The GeForce GTX 1660 Ti should be quite a bit (about 181%) better at anti-aliasing than the Radeon HD 7950, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 1660 Ti 72000 Mpixels/sec
Radeon HD 7950 25600 Mpixels/sec
Difference: 46400 (181%)

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 1660 Ti

Amazon.com

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Radeon HD 7950

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 1660 Ti Radeon HD 7950
Manufacturer nVidia AMD
Year February 2019 January 2012
Code Name TU116-400-A1 Tahiti Pro
Memory 6144 MB 1536 MB
Core Speed 1500 MHz 800 MHz
Memory Speed 1500 GB/s 5000 MHz
Power (Max TDP) 120 watts 200 watts
Bandwidth 294912 MB/sec 240000 MB/sec
Texel Rate 144000 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 1536 1792
Texture Mapping Units 96 112
Render Output Units 48 32
Bus Type GDDR6 GDDR5
Bus Width 192-bit 384-bit
Fab Process 12 nm 28 nm
Transistors 6600 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.6 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 are applied in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably 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 1660 Ti

Amazon.com

Check prices at:

Radeon HD 7950

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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