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Radeon HD 4650 1GB vs Radeon HD 5770
Intro
The Radeon HD 4650 1GB makes use of a 55 nm design. AMD has set the core speed at 600 MHz. The GDDR3 memory works at a speed of 700 MHz on this model. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.Compare those specs to the Radeon HD 5770, which features core speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4650 1GB |
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55 Watts |
| Radeon HD 5770 |
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108 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 5770 should theoretically be a lot better than the Radeon HD 4650 1GB overall. (explain)
| Radeon HD 5770 |
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76800 MB/sec |
| Radeon HD 4650 1GB |
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22400 MB/sec |
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Texel Rate
The Radeon HD 5770 is a lot (about 77%) faster with regards to texture filtering than the Radeon HD 4650 1GB. (explain)| Radeon HD 5770 |
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34000 Mtexels/sec |
| Radeon HD 4650 1GB |
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19200 Mtexels/sec |
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Pixel Rate
The Radeon HD 5770 will be quite a bit (approximately 183%) more effective at anti-aliasing than the Radeon HD 4650 1GB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)| Radeon HD 5770 |
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13600 Mpixels/sec |
| Radeon HD 4650 1GB |
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4800 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 4650 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 4650 1GB | Radeon HD 5770 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Sep 10, 2008 | October 13, 2009 |
| Code Name | RV730 PRO | Juniper XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 600 MHz | 850 MHz |
| Memory Speed | 1400 MHz | 4800 MHz |
| Power (Max TDP) | 55 watts | 108 watts |
| Bandwidth | 22400 MB/sec | 76800 MB/sec |
| Texel Rate | 19200 Mtexels/sec | 34000 Mtexels/sec |
| Pixel Rate | 4800 Mpixels/sec | 13600 Mpixels/sec |
| Unified Shaders | 320(64x5) | 800(160x5) |
| Texture Mapping Units | 32 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 514 million | 1040 million |
| Bus | PCIe 2.0 x16, AGP 8x | PCIe 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 4650 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
One Response to “Radeon HD 4650 1GB vs Radeon HD 5770”[...] As far as the HD 4650 vs the 6770, the HD6770/5770 is in the range of twice as good as the HD4650 Radeon HD 4650 1GB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare __________________ Hard Sayin Not [...]