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GeForce GTX 660 Ti vs Radeon HD 7870
Intro
The GeForce GTX 660 Ti features a clock speed of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 28 nm design. It is comprised of 1344 SPUs, 112 TAUs, and 24 Raster Operation Units.Compare all that to the Radeon HD 7870, which comes with GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is made up of 1280 Stream Processors, 80 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
| Radeon HD 7870 |
|
6230 points |
| GeForce GTX 660 Ti |
|
6013 points |
|
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 660 Ti |
|
150 Watts |
| Radeon HD 7870 |
|
175 Watts |
|
|
Memory Bandwidth
In theory, the Radeon HD 7870 should perform a little bit faster than the GeForce GTX 660 Ti in general. (explain)
| Radeon HD 7870 |
|
153600 MB/sec |
| GeForce GTX 660 Ti |
|
144000 MB/sec |
|
|
Texel Rate
The GeForce GTX 660 Ti is much (approximately 28%) better at anisotropic filtering than the Radeon HD 7870. (explain)| GeForce GTX 660 Ti |
|
102480 Mtexels/sec |
| Radeon HD 7870 |
|
80000 Mtexels/sec |
|
|
Pixel Rate
If using high levels of AA is important to you, then the Radeon HD 7870 is superior to the GeForce GTX 660 Ti, by a large margin. (explain)| Radeon HD 7870 |
|
32000 Mpixels/sec |
| GeForce GTX 660 Ti |
|
21960 Mpixels/sec |
|
|
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 TiAmazon.com
Check prices at:
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Radeon HD 7870Amazon.com
Check prices at:
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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
| Model | GeForce GTX 660 Ti | Radeon HD 7870 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | August 2012 | March 2012 |
| Code Name | GK104 | Pitcairn XT |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 915 MHz | 1000 MHz |
| Memory Speed | 6000 MHz | 4800 MHz |
| Power (Max TDP) | 150 watts | 175 watts |
| Bandwidth | 144000 MB/sec | 153600 MB/sec |
| Texel Rate | 102480 Mtexels/sec | 80000 Mtexels/sec |
| Pixel Rate | 21960 Mpixels/sec | 32000 Mpixels/sec |
| Unified Shaders | 1344 | 1280 |
| Texture Mapping Units | 112 | 80 |
| 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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 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, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the 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 can 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 colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GTX 660 TiAmazon.com
Check prices at:
|
Radeon HD 7870Amazon.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
4 Responses to “GeForce GTX 660 Ti vs Radeon HD 7870”[...] load power consumption... Now for gtx 660 ti i'd recommend leaving that too, why? Take a look GeForce GTX 660 Ti vs Radeon HD 7870 – Performance Comparison Benchmarks @ Hardware Compare GeForce GTX 660 Ti vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare [...]
NICE ATI....for 3D,Fast perform,and Gamer.
mang saya mau beli kompor 1 kintal
Ati beats nVidia alot....
in performance and price