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Radeon HD 6770 1GB vs Radeon RX 470 4GB
Intro
The Radeon HD 6770 1GB features a clock frequency of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 ROPs.Compare those specifications to the Radeon RX 470 4GB, which makes use of a 14 nm design. AMD has clocked the core frequency at 926 MHz. The GDDR5 memory runs at a speed of 1650 MHz on this card. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6770 1GB |
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108 Watts |
| Radeon RX 470 4GB |
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120 Watts |
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Memory Bandwidth
In theory, the Radeon RX 470 4GB is 214% faster than the Radeon HD 6770 1GB in general, because of its greater data rate. (explain)
| Radeon RX 470 4GB |
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211200 MB/sec |
| Radeon HD 6770 1GB |
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67200 MB/sec |
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Texel Rate
The Radeon RX 470 4GB is quite a bit (more or less 229%) faster with regards to anisotropic filtering than the Radeon HD 6770 1GB. (explain)| Radeon RX 470 4GB |
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118528 Mtexels/sec |
| Radeon HD 6770 1GB |
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36000 Mtexels/sec |
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Pixel Rate
The Radeon RX 470 4GB will be a lot (about 106%) faster with regards to full screen anti-aliasing than the Radeon HD 6770 1GB, and able to handle higher resolutions without slowing down too much. (explain)| Radeon RX 470 4GB |
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29632 Mpixels/sec |
| Radeon HD 6770 1GB |
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14400 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 6770 1GBAmazon.com
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Radeon RX 470 4GBAmazon.com
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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 6770 1GB | Radeon RX 470 4GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 2011 | August 2016 |
| Code Name | Juniper XT | Polaris 10 |
| Memory | 1024 MB | 4096 MB |
| Core Speed | 900 MHz | 926 MHz |
| Memory Speed | 4200 MHz | 6600 MHz |
| Power (Max TDP) | 108 watts | 120 watts |
| Bandwidth | 67200 MB/sec | 211200 MB/sec |
| Texel Rate | 36000 Mtexels/sec | 118528 Mtexels/sec |
| Pixel Rate | 14400 Mpixels/sec | 29632 Mpixels/sec |
| Unified Shaders | 800 | 2048 |
| Texture Mapping Units | 40 | 128 |
| Render Output Units | 16 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 14 nm |
| Transistors | 1040 million | 5700 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 12.0 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.5 |
Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, the result 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, High Dynamic Range 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 this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.
Radeon HD 6770 1GBAmazon.com
Check prices at:
|
Radeon RX 470 4GBAmazon.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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