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GeForce GTX 660 Ti vs Radeon HD 7750

Intro

The GeForce GTX 660 Ti uses a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this card. It features 1344 SPUs as well as 112 Texture Address Units and 24 ROPs.

Compare those specifications to the Radeon HD 7750, which has a core clock frequency of 800 MHz and a GDDR5 memory speed of 1125 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

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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 660 Ti 6013 points
Radeon HD 7750 2240 points
Difference: 3773 (168%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce GTX 660 Ti 150 Watts
Difference: 95 Watts (173%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should in theory be a lot better than the Radeon HD 7750 in general. (explain)

GeForce GTX 660 Ti 144000 MB/sec
Radeon HD 7750 72000 MB/sec
Difference: 72000 (100%)

Texel Rate

The GeForce GTX 660 Ti will be quite a bit (about 300%) more effective at anisotropic filtering than the Radeon HD 7750. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
Radeon HD 7750 25600 Mtexels/sec
Difference: 76880 (300%)

Pixel Rate

The GeForce GTX 660 Ti will be a lot (more or less 72%) faster with regards to AA than the Radeon HD 7750, and able to handle higher screen resolutions better. (explain)

GeForce GTX 660 Ti 21960 Mpixels/sec
Radeon HD 7750 12800 Mpixels/sec
Difference: 9160 (72%)

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 660 Ti

Amazon.com

Check prices at:

Radeon HD 7750

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 660 Ti Radeon HD 7750
Manufacturer nVidia AMD
Year August 2012 February 2012
Code Name GK104 Cape Verde Pro
Memory 2048 MB 1024 MB
Core Speed 915 MHz 800 MHz
Memory Speed 6000 MHz 4500 MHz
Power (Max TDP) 150 watts 55 watts
Bandwidth 144000 MB/sec 72000 MB/sec
Texel Rate 102480 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 1344 512
Texture Mapping Units 112 32
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 1500 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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 660 Ti

Amazon.com

Check prices at:

Radeon HD 7750

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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