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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 RAM runs at a frequency of 1000 MHz on this specific model. It features 144 SPUs as well as 24 TAUs and 24 Rasterization Operator Units.Compare those specs to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has set the core speed at 1050 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this particular model. It features 2816 SPUs as well as 176 TAUs and 64 Rasterization Operator Units.
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 perform 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 much (about 875%) better at AF 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
The Radeon R9 390X 8G is quite a bit (approximately 254%) better at FSAA than the GeForce GT 450 (OEM), and will be able to handle higher resolutions without slowing down too much. (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 largest amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core 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 most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max 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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