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GeForce GTX 660 Ti vs Radeon HD 7850
Intro
The GeForce GTX 660 Ti comes with core speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1344 SPUs along with 112 Texture Address Units and 24 ROPs.Compare those specifications to the Radeon HD 7850, which makes use of a 28 nm design. AMD has clocked the core frequency at 860 MHz. The GDDR5 memory runs at a speed of 1200 MHz on this particular model. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.
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 |
|
6010 points |
| Radeon HD 7850 |
|
5200 points |
|
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7850 |
|
130 Watts |
| GeForce GTX 660 Ti |
|
150 Watts |
|
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Memory Bandwidth
In theory, the Radeon HD 7850 will be 7% faster than the GeForce GTX 660 Ti overall, due to its greater bandwidth. (explain)
| Radeon HD 7850 |
|
153600 MB/sec |
| GeForce GTX 660 Ti |
|
144000 MB/sec |
|
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Texel Rate
The GeForce GTX 660 Ti is quite a bit (about 86%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)| GeForce GTX 660 Ti |
|
102480 Mtexels/sec |
| Radeon HD 7850 |
|
55040 Mtexels/sec |
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Pixel Rate
The Radeon HD 7850 is a lot (more or less 25%) better at FSAA than the GeForce GTX 660 Ti, and also will be capable of handling higher resolutions while still performing well. (explain)| Radeon HD 7850 |
|
27520 Mpixels/sec |
| GeForce GTX 660 Ti |
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21960 Mpixels/sec |
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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
GeForce GTX 660 Ti
Radeon HD 7850
Specifications
| Model | GeForce GTX 660 Ti | Radeon HD 7850 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | August 2012 | March 2012 |
| Code Name | GK104 | Pitcairn Pro |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 915 MHz | 860 MHz |
| Memory Speed | 6000 MHz | 4800 MHz |
| Power (Max TDP) | 150 watts | 130 watts |
| Bandwidth | 144000 MB/sec | 153600 MB/sec |
| Texel Rate | 102480 Mtexels/sec | 55040 Mtexels/sec |
| Pixel Rate | 21960 Mpixels/sec | 27520 Mpixels/sec |
| Unified Shaders | 1344 | 1024 |
| Texture Mapping Units | 112 | 64 |
| Render Output Units | 24 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 256-bit |
| Fab Process | 28 nm | 28 nm |
| Transistors | 3540 million | 2800 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 MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GTX 660 Ti
Radeon HD 7850
Comments
6 Responses to “GeForce GTX 660 Ti vs Radeon HD 7850”[...] Hey just wondering about the 660 Ti and whether or not it has been released it appears that it has but not exactly sure and in terms of price etc is it worth it instead of the 7850. I've had to post pone my build until after Christmas Uni has made me a bit poorer than I anticipated so by then hopefully the 7850 may have dropped in price as a counter towards the 660 Ti. I've also been using this website as a comparison for graphics cards would you say it's fairly accurate: GeForce GTX 660 Ti vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare [...]
Chupa ati! porra! vão tomar no cú , eu sei fazer uma picarreta!
Será que uma das duas roda meu tíbia?
teu cu fdp a hd 7850 só perdeu taxel rate e vai comparar os preços das 2 seu otário fanboióla da nvidia
the 7850 is better for me.. ....thus the memory bandwidth is 256bit..ive seen the 660ti and its not worth the money the 7850 can run as fast as the 660ti but and also worth every penny ...
a7850 e supeiror seu urro alha de novo o principal o o ultimo i ela ta na frente