Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:

GeForce GTX 660 Ti vs Radeon HD 7950


The GeForce GTX 660 Ti makes use of a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this specific model. It features 1344 SPUs along with 112 Texture Address Units and 24 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7950, which makes use of a 28 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this card. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti 150 Watts
Radeon HD 7950 200 Watts
Difference: 50 Watts (33%)

Memory Bandwidth

In theory, the Radeon HD 7950 is 67% faster than the GeForce GTX 660 Ti overall, due to its greater bandwidth. (explain)

Radeon HD 7950 240000 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 96000 (67%)

Texel Rate

The GeForce GTX 660 Ti will be a little bit (about 14%) faster with regards to AF than the Radeon HD 7950. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
Radeon HD 7950 89600 Mtexels/sec
Difference: 12880 (14%)

Pixel Rate

The Radeon HD 7950 is just a bit (more or less 17%) more effective at anti-aliasing than the GeForce GTX 660 Ti, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 7950 25600 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 3640 (17%)

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

Display Prices

Hide Prices

GeForce GTX 660 Ti

Radeon HD 7950

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.


Display Specifications

Hide Specifications

Model GeForce GTX 660 Ti Radeon HD 7950
Manufacturer nVidia AMD
Year August 2012 January 2012
Code Name GK104 Tahiti Pro
Memory 2048 MB 1536 MB
Core Speed 915 MHz 800 MHz
Memory Speed 6000 MHz 5000 MHz
Power (Max TDP) 150 watts 200 watts
Bandwidth 144000 MB/sec 240000 MB/sec
Texel Rate 102480 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 1344 1792
Texture Mapping Units 112 112
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 3540 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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the 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 processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.


One Response to “GeForce GTX 660 Ti vs Radeon HD 7950”
Điểm danh các dòng GTX 660 của các hãng tại Việt Nam - Page 2 says:

[...] 7950 cả: Để bạn khỏi nói rằng mình chỉ dựa trên mỗi techpowerup thì đây link của Hardware Coparison và pic của tom's hardware Rất nhiều người chơi game res trên 1920x1080p đó [...]

Your email address will not be published. Required fields are marked *


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

WordPress Anti-Spam by WP-SpamShield