 |
 |
GeForce GTX 460 1GB vs Radeon HD 4870 1GB
Intro
The GeForce GTX 460 1GB makes use of a 40 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR5 memory runs at a frequency of 900 MHz on this specific model. It features 336 SPUs along with 56 Texture Address Units and 32 ROPs.Compare those specs to the Radeon HD 4870 1GB, which features clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4870 1GB |
|
150 Watts |
| GeForce GTX 460 1GB |
|
160 Watts |
|
|
Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should perform exactly the same. (explain)
Texel Rate
The GeForce GTX 460 1GB should be much (about 26%) better at anisotropic filtering than the Radeon HD 4870 1GB. (explain)| GeForce GTX 460 1GB |
|
37800 Mtexels/sec |
| Radeon HD 4870 1GB |
|
30000 Mtexels/sec |
|
|
Pixel Rate
If using a high resolution is important to you, then the GeForce GTX 460 1GB is superior to the Radeon HD 4870 1GB, by far. (explain)| GeForce GTX 460 1GB |
|
21600 Mpixels/sec |
| Radeon HD 4870 1GB |
|
12000 Mpixels/sec |
|
|
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
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.
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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum 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?