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GeForce GTX 580 3GB vs Radeon HD 6450 (OEM)
Intro
The GeForce GTX 580 3GB comes with a clock speed of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also uses a 384-bit memory bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 Texture Address Units, and 48 Raster Operation Units.Compare all of that to the Radeon HD 6450 (OEM), which comes with core clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 160 SPUs along with 8 Texture Address Units and 4 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6450 (OEM) |
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31 Watts |
| GeForce GTX 580 3GB |
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244 Watts |
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Memory Bandwidth
In theory, the GeForce GTX 580 3GB will be 1403% faster than the Radeon HD 6450 (OEM) overall, because of its higher data rate. (explain)
| GeForce GTX 580 3GB |
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192384 MB/sec |
| Radeon HD 6450 (OEM) |
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12800 MB/sec |
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Texel Rate
The GeForce GTX 580 3GB is much (about 888%) faster with regards to AF than the Radeon HD 6450 (OEM). (explain)| GeForce GTX 580 3GB |
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49408 Mtexels/sec |
| Radeon HD 6450 (OEM) |
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5000 Mtexels/sec |
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Pixel Rate
The GeForce GTX 580 3GB is a lot (about 1382%) faster with regards to anti-aliasing than the Radeon HD 6450 (OEM), and should be capable of handling higher screen resolutions while still performing well. (explain)| GeForce GTX 580 3GB |
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37056 Mpixels/sec |
| Radeon HD 6450 (OEM) |
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2500 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 580 3GBAmazon.com
Check prices at:
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Radeon HD 6450 (OEM)Amazon.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 580 3GB | Radeon HD 6450 (OEM) |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | November 2010 | February 2011 |
| Code Name | GF110 | Caicos |
| Memory | 3072 MB | 512 MB |
| Core Speed | 772 MHz | 625 MHz |
| Memory Speed | 4008 MHz | 1600 MHz |
| Power (Max TDP) | 244 watts | 31 watts |
| Bandwidth | 192384 MB/sec | 12800 MB/sec |
| Texel Rate | 49408 Mtexels/sec | 5000 Mtexels/sec |
| Pixel Rate | 37056 Mpixels/sec | 2500 Mpixels/sec |
| Unified Shaders | 512 | 160 |
| Texture Mapping Units | 64 | 8 |
| Render Output Units | 48 | 4 |
| Bus Type | GDDR5 | GDDR3 |
| Bus Width | 384-bit | 64-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 3000 million | 370 million |
| Bus | PCIe x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.
GeForce GTX 580 3GBAmazon.com
Check prices at:
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Radeon HD 6450 (OEM)Amazon.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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