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Radeon HD 4870 1GB vs Radeon HD 5770
Intro
The Radeon HD 4870 1GB comes with a core clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also features a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.Compare those specifications to the Radeon HD 5770, which makes use of a 40 nm design. AMD has set the core speed at 850 MHz. The GDDR5 RAM runs at a speed of 1200 MHz on this particular model. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5770 |
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108 Watts |
| Radeon HD 4870 1GB |
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150 Watts |
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Memory Bandwidth
The Radeon HD 4870 1GB should in theory perform a lot faster than the Radeon HD 5770 in general. (explain)
| Radeon HD 4870 1GB |
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115200 MB/sec |
| Radeon HD 5770 |
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76800 MB/sec |
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Texel Rate
The Radeon HD 5770 is just a bit (approximately 13%) faster with regards to AF than the Radeon HD 4870 1GB. (explain)| Radeon HD 5770 |
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34000 Mtexels/sec |
| Radeon HD 4870 1GB |
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30000 Mtexels/sec |
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Pixel Rate
The Radeon HD 5770 is a small bit (about 13%) more effective at full screen anti-aliasing than the Radeon HD 4870 1GB, and should be capable of handling higher screen resolutions more effectively. (explain)| Radeon HD 5770 |
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13600 Mpixels/sec |
| Radeon HD 4870 1GB |
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12000 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 5770Amazon.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 4870 1GB | Radeon HD 5770 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | October 13, 2009 |
| Code Name | RV770 XT | Juniper XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 750 MHz | 850 MHz |
| Memory Speed | 3600 MHz | 4800 MHz |
| Power (Max TDP) | 150 watts | 108 watts |
| Bandwidth | 115200 MB/sec | 76800 MB/sec |
| Texel Rate | 30000 Mtexels/sec | 34000 Mtexels/sec |
| Pixel Rate | 12000 Mpixels/sec | 13600 Mpixels/sec |
| Unified Shaders | 800(160x5) | 800(160x5) |
| Texture Mapping Units | 40 | 40 |
| 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 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 4870 1GBAmazon.com
Check prices at:
|
Radeon HD 5770Amazon.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
4 Responses to “Radeon HD 4870 1GB vs Radeon HD 5770”[...] Radeon HD 4870 1GB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare GA-X58A-UD3 / Intel i7 950 / Mugen2 / 6GB 1866MHz / EVGA GTX460 SC / OCZ SSD Vertex2 90GB / 2x Samsung Spinpoint 1 TB / Scythe Card Reader 2 / Corsair HX850 / dual boot W7 en OSX 10.6.6 Antwoord met Citaat + Plaats een Reactie « Nieuw Set up | - » [...]
[...] 1GB GDDD5 گارانتی شاپ تا سال 92 استارتر عزيز 5770 نسبت به 4870 Radeon HD 4870 1GB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare ترجمه متون انگليسی زير قيمت بازار پاسخ با نقل [...]
[...] y 8x0 mhz de frecuencia, pero la 5xxx tiene 1300mhz y 128 bits. Q se podria concluir con eso? Radeon HD 4870 1GB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare mira ahi hay una buena comparacion, la 4870 le gana por muy poco a una 5770 , algo asi como un 5% [...]
[...] sorry Succes met de verkoop in alle geval.. De 4870 1GB versie is dan ook een stukje beter: Radeon HD 4870 1GB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare 44 incluis is dus wel een goede prijs dacht [...]