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GeForce GT 340 1GB vs GeForce GTX 460 2GB
Intro
The GeForce GT 340 1GB features a core clock frequency of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is comprised of 96 SPUs, 32 Texture Address Units, and 8 Raster Operation Units.Compare those specs to the GeForce GTX 460 2GB, which features GPU clock speed of 675 MHz, and 2048 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also is made up of 336 SPUs, 56 TAUs, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 340 1GB |
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69 Watts |
| GeForce GTX 460 2GB |
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160 Watts |
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Memory Bandwidth
In theory, the GeForce GTX 460 2GB will be 112% faster than the GeForce GT 340 1GB in general, due to its greater bandwidth. (explain)
| GeForce GTX 460 2GB |
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115200 MB/sec |
| GeForce GT 340 1GB |
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54400 MB/sec |
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Texel Rate
The GeForce GTX 460 2GB is a lot (approximately 115%) faster with regards to anisotropic filtering than the GeForce GT 340 1GB. (explain)| GeForce GTX 460 2GB |
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37800 Mtexels/sec |
| GeForce GT 340 1GB |
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17600 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the GeForce GTX 460 2GB is the winner, by far. (explain)| GeForce GTX 460 2GB |
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21600 Mpixels/sec |
| GeForce GT 340 1GB |
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4400 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 GT 340 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 GT 340 1GB | GeForce GTX 460 2GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | February 2010 | July 2010 |
| Code Name | GT215 | GF104 |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 550 MHz | 675 MHz |
| Memory Speed | 3400 MHz | 3600 MHz |
| Power (Max TDP) | 69 watts | 160 watts |
| Bandwidth | 54400 MB/sec | 115200 MB/sec |
| Texel Rate | 17600 Mtexels/sec | 37800 Mtexels/sec |
| Pixel Rate | 4400 Mpixels/sec | 21600 Mpixels/sec |
| Unified Shaders | 96 | 336 |
| Texture Mapping Units | 32 | 56 |
| Render Output Units | 8 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 727 million | 1950 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.3 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock 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 in one second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce GT 340 1GBAmazon.com
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GeForce GTX 460 2GBAmazon.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.
|
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