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GeForce GTS 250 1GB vs Radeon HD 4730
Intro
The GeForce GTS 250 1GB has core clock speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.Compare that to the Radeon HD 4730, which has a core clock speed of 700 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 128-bit memory bus, and uses a 55 nm design. It is made up of 640(128x5) SPUs, 32 Texture Address Units, and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4730 |
|
140 Watts |
| GeForce GTS 250 1GB |
|
145 Watts |
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Memory Bandwidth
The GeForce GTS 250 1GB should in theory perform quite a bit faster than the Radeon HD 4730 overall. (explain)
| GeForce GTS 250 1GB |
|
70400 MB/sec |
| Radeon HD 4730 |
|
57600 MB/sec |
|
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Texel Rate
The GeForce GTS 250 1GB should be a lot (approximately 111%) better at AF than the Radeon HD 4730. (explain)| GeForce GTS 250 1GB |
|
47232 Mtexels/sec |
| Radeon HD 4730 |
|
22400 Mtexels/sec |
|
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Pixel Rate
The GeForce GTS 250 1GB will be a lot (about 111%) better at full screen anti-aliasing than the Radeon HD 4730, and should be capable of handling higher resolutions more effectively. (explain)| GeForce GTS 250 1GB |
|
11808 Mpixels/sec |
| Radeon HD 4730 |
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5600 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
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 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Radeon HD 4730Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | GeForce GTS 250 1GB | Radeon HD 4730 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | March 3, 2009 | Jun 8, 2009 |
| Code Name | G92a/b | RV770/CE |
| Fab Process | 65/55 nm | 55 nm |
| Bus | PCIe x16 2.0 | PCIe 2.0 x16 |
| Memory | 1024 MB | 512 MB |
| Core Speed | 738 MHz | 700 MHz |
| Shader Speed | 1836 MHz | (N/A) MHz |
| Memory Speed | 1100 MHz | 900 MHz |
| Unified Shaders | 128 | 640(128x5) |
| Texture Mapping Units | 64 | 32 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.1 | OpenGL 3.0 |
| Power (Max TDP) | 145 watts | 140 watts |
| Shader Model | 4.0 | 4.1 |
| Bandwidth | 70400 MB/sec | 57600 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 22400 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 5600 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are 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 better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
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