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GeForce GTX 650 Ti 2GB vs Radeon HD 7870 XT
Intro
The GeForce GTX 650 Ti 2GB has a core clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It is made up of 768 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.Compare that to the Radeon HD 7870 XT, which makes use of a 28 nm design. AMD has clocked the core speed at 925 MHz. The GDDR5 RAM runs at a frequency of 1500 MHz on this card. It features 1536 SPUs along with 96 Texture Address Units and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 650 Ti 2GB |
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110 Watts |
| Radeon HD 7870 XT |
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185 Watts |
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Memory Bandwidth
In theory, the Radeon HD 7870 XT will be 122% quicker than the GeForce GTX 650 Ti 2GB overall, due to its greater bandwidth. (explain)
| Radeon HD 7870 XT |
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192000 MB/sec |
| GeForce GTX 650 Ti 2GB |
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86400 MB/sec |
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Texel Rate
The Radeon HD 7870 XT is a lot (about 50%) better at anisotropic filtering than the GeForce GTX 650 Ti 2GB. (explain)| Radeon HD 7870 XT |
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88800 Mtexels/sec |
| GeForce GTX 650 Ti 2GB |
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59392 Mtexels/sec |
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Pixel Rate
The Radeon HD 7870 XT should be quite a bit (approximately 99%) faster with regards to FSAA than the GeForce GTX 650 Ti 2GB, and also should be able to handle higher resolutions better. (explain)| Radeon HD 7870 XT |
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29600 Mpixels/sec |
| GeForce GTX 650 Ti 2GB |
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14848 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 650 Ti 2GBAmazon.com
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Radeon HD 7870 XTAmazon.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 650 Ti 2GB | Radeon HD 7870 XT |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2012 | November 2012 |
| Code Name | GK106 | Tahiti LE |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 928 MHz | 925 MHz |
| Memory Speed | 5400 MHz | 6000 MHz |
| Power (Max TDP) | 110 watts | 185 watts |
| Bandwidth | 86400 MB/sec | 192000 MB/sec |
| Texel Rate | 59392 Mtexels/sec | 88800 Mtexels/sec |
| Pixel Rate | 14848 Mpixels/sec | 29600 Mpixels/sec |
| Unified Shaders | 768 | 1536 |
| Texture Mapping Units | 64 | 96 |
| Render Output Units | 16 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 28 nm | 28 nm |
| Transistors | 2540 million | 4313 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11.0 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.3 | OpenGL 4.3 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
GeForce GTX 650 Ti 2GBAmazon.com
Check prices at:
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Radeon HD 7870 XTAmazon.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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