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GeForce GTX 460 1GB vs GeForce GTX 460 2GB
Intro
The GeForce GTX 460 1GB uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 memory works at a speed of 900 MHz on this card. It features 336 SPUs along with 56 Texture Address Units and 32 ROPs.Compare those specifications to the GeForce GTX 460 2GB, which features a clock speed of 675 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should perform exactly the same. (explain)
Texel Rate
Both cards have exactly the same texel fill rate, so in theory they should perform equally good at at AF. (explain)Pixel Rate
Both cards have the exact same pixel rate, so in theory they should perform equally good at at AA, and be able to handle the same screen resolutions. (explain)
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 460 1GBAmazon.com
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GeForce GTX 460 2GBAmazon.com
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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 460 1GB | GeForce GTX 460 2GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2010 | July 2010 |
| Code Name | GF104 | GF104 |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 675 MHz | 675 MHz |
| Memory Speed | 3600 MHz | 3600 MHz |
| Power (Max TDP) | 160 watts | 160 watts |
| Bandwidth | 115200 MB/sec | 115200 MB/sec |
| Texel Rate | 37800 Mtexels/sec | 37800 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 21600 Mpixels/sec |
| Unified Shaders | 336 | 336 |
| Texture Mapping Units | 56 | 56 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1950 million | 1950 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce GTX 460 1GBAmazon.com
Check prices at:
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GeForce GTX 460 2GBAmazon.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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