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GeForce GTX 460 1GB vs Radeon HD 4870 1GB
Intro
The GeForce GTX 460 1GB uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 RAM is set to run at a frequency of 900 MHz on this particular card. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.Compare those specs to the Radeon HD 4870 1GB, which makes use of a 55 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR5 memory works at a frequency of 900 MHz on this card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4870 1GB |
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150 Watts |
| GeForce GTX 460 1GB |
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160 Watts |
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Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should have the same performance. (explain)
Texel Rate
The GeForce GTX 460 1GB should be a lot (about 26%) faster with regards to anisotropic filtering than the Radeon HD 4870 1GB. (explain)| GeForce GTX 460 1GB |
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37800 Mtexels/sec |
| Radeon HD 4870 1GB |
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30000 Mtexels/sec |
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Pixel Rate
The GeForce GTX 460 1GB is a lot (more or less 80%) more effective at FSAA than the Radeon HD 4870 1GB, and should be capable of handling higher resolutions without losing too much performance. (explain)| GeForce GTX 460 1GB |
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21600 Mpixels/sec |
| Radeon HD 4870 1GB |
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12000 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 460 1GBAmazon.com
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Radeon HD 4870 1GBAmazon.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 460 1GB | Radeon HD 4870 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | July 2010 | Jun 25, 2008 |
| Code Name | GF104 | RV770 XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 675 MHz | 750 MHz |
| Memory Speed | 3600 MHz | 3600 MHz |
| Power (Max TDP) | 160 watts | 150 watts |
| Bandwidth | 115200 MB/sec | 115200 MB/sec |
| Texel Rate | 37800 Mtexels/sec | 30000 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 12000 Mpixels/sec |
| Unified Shaders | 336 | 800(160x5) |
| Texture Mapping Units | 56 | 40 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 1950 million | 956 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics 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 the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.
GeForce GTX 460 1GBAmazon.com
Check prices at:
|
Radeon HD 4870 1GBAmazon.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.
|
Comments
One Response to “GeForce GTX 460 1GB vs Radeon HD 4870 1GB”When will we see the addition of the new AMD/Radeon 7000 series added as well as the new NVidia 600 series?