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GeForce GTX 285 1GB vs GeForce GTX 285 2GB
Intro
The GeForce GTX 285 1GB comes with a core clock frequency of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also uses a 512-bit memory bus, and uses a 55 nm design. It features 240 SPUs, 80 TAUs, and 32 Raster Operation Units.Compare those specs to the GeForce GTX 285 2GB, which features a core clock speed of 648 MHz and a GDDR3 memory frequency of 1242 MHz. It also features a 512-bit memory bus, and makes use of a 55 nm design. It is made up of 240 SPUs, 80 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same memory bandwidth, so theoretically they should have the same performance. (explain)
Texel Rate
Both cards have the exact same texel rate, so theoretically they should be equally good at at AF. (explain)Pixel Rate
Both cards have the exact same pixel rate, so theoretically they should be equally good at at FSAA, and be able to handle the same 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 285 1GBAmazon.com
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GeForce GTX 285 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 285 1GB | GeForce GTX 285 2GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | January 15, 2009 | January 15, 2009 |
| Code Name | G200b | G200b |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 648 MHz | 648 MHz |
| Memory Speed | 2484 MHz | 2484 MHz |
| Power (Max TDP) | 204 watts | 204 watts |
| Bandwidth | 158976 MB/sec | 158976 MB/sec |
| Texel Rate | 51840 Mtexels/sec | 51840 Mtexels/sec |
| Pixel Rate | 20736 Mpixels/sec | 20736 Mpixels/sec |
| Unified Shaders | 240 | 240 |
| Texture Mapping Units | 80 | 80 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 512-bit | 512-bit |
| Fab Process | 55 nm | 55 nm |
| Transistors | 1400 million | 1400 million |
| Bus | PCIe x16 2.0 | PCIe x16 2.0 |
| DirectX Version | DirectX 10 | DirectX 10 |
| OpenGL Version | OpenGL 3.1 | OpenGL 3.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce GTX 285 1GBAmazon.com
Check prices at:
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GeForce GTX 285 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.
|
Comments
2 Responses to “GeForce GTX 285 1GB vs GeForce GTX 285 2GB”thin compare result shoes that shit on your site because one gig more of memory nowhere does have effect
1GB of memory to 2gb of memory has a massive effect.
2GB to 3GB has little effect unless you're playing above 1080p, but is good for certain games.
And 3gb to 4gb doesn't matter at all at 1080p, makes a large difference at 2160p(4k)