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Radeon HD 4870 1GB vs Radeon HD 6750 1GB
Intro
The Radeon HD 4870 1GB features core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.Compare those specifications to the Radeon HD 6750 1GB, which has core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs along with 36 TAUs and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6750 1GB |
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86 Watts |
| Radeon HD 4870 1GB |
|
150 Watts |
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Memory Bandwidth
In theory, the Radeon HD 4870 1GB should be much faster than the Radeon HD 6750 1GB in general. (explain)
| Radeon HD 4870 1GB |
|
115200 MB/sec |
| Radeon HD 6750 1GB |
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64000 MB/sec |
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Texel Rate
The Radeon HD 4870 1GB will be just a bit (more or less 15%) faster with regards to AF than the Radeon HD 6750 1GB. (explain)| Radeon HD 4870 1GB |
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30000 Mtexels/sec |
| Radeon HD 6750 1GB |
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26100 Mtexels/sec |
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Pixel Rate
The Radeon HD 4870 1GB should be a bit (about 3%) better at full screen anti-aliasing than the Radeon HD 6750 1GB, and also will be capable of handling higher resolutions while still performing well. (explain)| Radeon HD 4870 1GB |
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12000 Mpixels/sec |
| Radeon HD 6750 1GB |
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11600 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
Radeon HD 4870 1GBAmazon.com
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Radeon HD 6750 1GBAmazon.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 | Radeon HD 4870 1GB | Radeon HD 6750 1GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | January 2011 |
| Code Name | RV770 XT | Juniper Pro |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 750 MHz | 725 MHz |
| Memory Speed | 3600 MHz | 4000 MHz |
| Power (Max TDP) | 150 watts | 86 watts |
| Bandwidth | 115200 MB/sec | 64000 MB/sec |
| Texel Rate | 30000 Mtexels/sec | 26100 Mtexels/sec |
| Pixel Rate | 12000 Mpixels/sec | 11600 Mpixels/sec |
| Unified Shaders | 800(160x5) | 720 |
| Texture Mapping Units | 40 | 36 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 956 million | 1040 million |
| Bus | PCIe 2.0 x16 | PCIe x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses 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, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated 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 processed in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 4870 1GBAmazon.com
Check prices at:
|
Radeon HD 6750 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 “Radeon HD 4870 1GB vs Radeon HD 6750 1GB”[...] XFX HD 6750 DDR3 1GB "con comentarios" Radeon HD 4870 1GB vs Radeon HD 6750 1GB – Performance Comparison Benchmarks @ Hardware Compar... Si te importa solo rendimiento me gusta mas la 4870 con bios mod al ventilador. Si te importa el [...]