 |
 |
|
|
|
GeForce GTS 250 512MB vs Radeon HD 5770
Intro
The GeForce GTS 250 512MB has clock speeds of 738 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs as well as 64 TAUs and 16 ROPs.Compare all of that to the Radeon HD 5770, which has GPU core speed of 850 MHz, and 1024 MB of GDDR5 memory set to run at 1200 MHz through a 128-bit bus. It also is comprised of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.
Crysis
| Settings: | High Detail |
| AA: | 4x |
| AF: | none |
| Resolution: | 1680x1050 |
| Test Machine: | Intel Core i5-750,Windows 7 Ultimate x64,3 x 2GB (Source) |
| Radeon HD 5770 |
|
34 FPS |
| GeForce GTS 250 512MB |
|
27 FPS |
|
|
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5770 |
|
108 Watts |
| GeForce GTS 250 512MB |
|
145 Watts |
|
|
Memory Bandwidth
In theory, the Radeon HD 5770 should be 9% faster than the GeForce GTS 250 512MB overall, due to its greater bandwidth. (explain)
| Radeon HD 5770 |
|
76800 MB/sec |
| GeForce GTS 250 512MB |
|
70400 MB/sec |
|
|
Texel Rate
The GeForce GTS 250 512MB will be a lot (about 39%) faster with regards to AF than the Radeon HD 5770. (explain)| GeForce GTS 250 512MB |
|
47232 Mtexels/sec |
| Radeon HD 5770 |
|
34000 Mtexels/sec |
|
|
Pixel Rate
If using lots of anti-aliasing is important to you, then the Radeon HD 5770 is the winner, though not by far. (explain)| Radeon HD 5770 |
|
13600 Mpixels/sec |
| GeForce GTS 250 512MB |
|
11808 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTS 250 512MBAmazon.com
Other US-based stores
|
Radeon HD 5770Amazon.com
Other US-based stores
|
Specifications
| Model | GeForce GTS 250 512MB | Radeon HD 5770 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | March 3, 2009 | October 13, 2009 |
| Code Name | G92a/b | Juniper XT |
| Fab Process | 65/55 nm | 40 nm |
| Bus | PCIe x16 2.0 | PCIe 2.1 x16 |
| Memory | 512 MB | 1024 MB |
| Core Speed | 738 MHz | 850 MHz |
| Shader Speed | 1836 MHz | (N/A) MHz |
| Memory Speed | 1100 MHz (2200 MHz effective) | 1200 MHz (4800 MHz effective) |
| Unified Shaders | 128 | 800(160x5) |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 3.2 |
| Power (Max TDP) | 145 watts | 108 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 70400 MB/sec | 76800 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 34000 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 13600 Mpixels/sec |
Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it 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 AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total 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 in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
Comments
Be the first to leave a comment!