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GeForce GT 450 (OEM) vs Radeon R9 390X 8G
Intro
The GeForce GT 450 (OEM) uses a 40 nm design. nVidia has clocked the core frequency at 790 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this model. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.Compare those specifications to the Radeon R9 390X 8G, which has core clock speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 memory. It features 2816 SPUs as well as 176 Texture Address Units and 64 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 450 (OEM) |
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106 Watts |
| Radeon R9 390X 8G |
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275 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon R9 390X 8G should be quite a bit faster than the GeForce GT 450 (OEM) overall. (explain)
| Radeon R9 390X 8G |
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384000 MB/sec |
| GeForce GT 450 (OEM) |
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96000 MB/sec |
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Texel Rate
The Radeon R9 390X 8G is quite a bit (more or less 875%) more effective at texture filtering than the GeForce GT 450 (OEM). (explain)| Radeon R9 390X 8G |
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184800 Mtexels/sec |
| GeForce GT 450 (OEM) |
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18960 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the Radeon R9 390X 8G is superior to the GeForce GT 450 (OEM), by far. (explain)| Radeon R9 390X 8G |
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67200 Mpixels/sec |
| GeForce GT 450 (OEM) |
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18960 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 450 (OEM)Amazon.com
Check prices at:
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Radeon R9 390X 8GAmazon.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 GT 450 (OEM) | Radeon R9 390X 8G |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | June 2015 |
| Code Name | GF106 | Grenada XT |
| Memory | 1536 MB | 8192 MB |
| Core Speed | 790 MHz | 1050 MHz |
| Memory Speed | 4000 MHz | 6000 MHz |
| Power (Max TDP) | 106 watts | 275 watts |
| Bandwidth | 96000 MB/sec | 384000 MB/sec |
| Texel Rate | 18960 Mtexels/sec | 184800 Mtexels/sec |
| Pixel Rate | 18960 Mpixels/sec | 67200 Mpixels/sec |
| Unified Shaders | 144 | 2816 |
| Texture Mapping Units | 24 | 176 |
| Render Output Units | 24 | 64 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 512-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 1170 million | 6200 million |
| Bus | PCIe x16 | PCIe 3.0 ×16 |
| DirectX Version | DirectX 11 | DirectX 12.0 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.5 |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units 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 processed in one second.
Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
GeForce GT 450 (OEM)Amazon.com
Check prices at:
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Radeon R9 390X 8GAmazon.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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