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GeForce GT 240 GDDR5 vs Radeon HD 4670 512MB
Intro
The GeForce GT 240 GDDR5 features a core clock frequency of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 96 SPUs, 32 TAUs, and 8 Raster Operation Units.Compare those specs to the Radeon HD 4670 512MB, which comes with core clock speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
The GeForce GT 240 GDDR5, in theory, should perform quite a bit faster than the Radeon HD 4670 512MB overall. (explain)
| GeForce GT 240 GDDR5 |
|
54400 MB/sec |
| Radeon HD 4670 512MB |
|
32000 MB/sec |
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Texel Rate
The Radeon HD 4670 512MB is a lot (approximately 36%) faster with regards to AF than the GeForce GT 240 GDDR5. (explain)| Radeon HD 4670 512MB |
|
24000 Mtexels/sec |
| GeForce GT 240 GDDR5 |
|
17600 Mtexels/sec |
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Pixel Rate
The Radeon HD 4670 512MB should be quite a bit (more or less 36%) more effective at anti-aliasing than the GeForce GT 240 GDDR5, and also will be able to handle higher screen resolutions better. (explain)| Radeon HD 4670 512MB |
|
6000 Mpixels/sec |
| GeForce GT 240 GDDR5 |
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4400 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 GT 240 GDDR5Amazon.com
Check prices at:
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Radeon HD 4670 512MBAmazon.com
Check prices at:
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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 GT 240 GDDR5 | Radeon HD 4670 512MB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | Novermber 2009 | Sep 10, 2008 |
| Code Name | GT215 | RV730 XT |
| Memory | 512 MB | 512 MB |
| Core Speed | 550 MHz | 750 MHz |
| Memory Speed | 3400 MHz | 2000 MHz |
| Power (Max TDP) | 70 watts | 70 watts |
| Bandwidth | 54400 MB/sec | 32000 MB/sec |
| Texel Rate | 17600 Mtexels/sec | 24000 Mtexels/sec |
| Pixel Rate | 4400 Mpixels/sec | 6000 Mpixels/sec |
| Unified Shaders | 96 | 320(64x5) |
| Texture Mapping Units | 32 | 32 |
| Render Output Units | 8 | 8 |
| Bus Type | GDDR5 | GDDR4/GDDR3/DDR3/DDR2 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 289 million | 514 million |
| Bus | PCIe x16 | PCIe 2.0 x16, AGP 8x |
| DirectX Version | DirectX 10.1 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.2 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at 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 could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.
GeForce GT 240 GDDR5Amazon.com
Check prices at:
|
Radeon HD 4670 512MBAmazon.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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