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GeForce GT 450 (OEM) vs Radeon R9 390X 8G
Intro
The GeForce GT 450 (OEM) features a core clock speed of 790 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 192-bit memory bus, and makes use of a 40 nm design. It is made up of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.Compare that to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has clocked the core speed at 1050 MHz. The GDDR5 memory runs at a frequency of 1500 MHz on this particular model. It features 2816 SPUs along with 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
The Radeon R9 390X 8G should in theory be a lot faster than the GeForce GT 450 (OEM) in general. (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 should be a lot (approximately 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 using a high resolution is important to you, then the Radeon R9 390X 8G is superior to the GeForce GT 450 (OEM), and very much so. (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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
GeForce GT 450 (OEM)Amazon.com
Check prices at:
|
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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