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Radeon HD 4870 1GB vs Radeon HD 5830
Intro
The Radeon HD 4870 1GB has a clock speed of 750 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 256-bit memory bus, and uses a 55 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.Compare all that to the Radeon HD 5830, which features a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also is made up of 1120(224x5) SPUs, 56 TAUs, and 16 ROPs.
Avatar
| Settings: | Ultra High Quality |
| AA: | 8x |
| AF: | none |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 5830 |
|
41 FPS |
| Radeon HD 4870 1GB |
|
33 FPS |
|
|
Battlefield Bad Company 2
| Settings: | High Quality |
| AA: | 4x |
| AF: | 8x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 5830 |
|
35 FPS |
| Radeon HD 4870 1GB |
|
33 FPS |
|
|
Left4Dead 2
| Settings: | Very High |
| AA: | 8x |
| AF: | 16x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 5830 |
|
81 FPS |
| Radeon HD 4870 1GB |
|
80 FPS |
|
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Mass Effect 2
| Settings: | Maximum Quality |
| AA: | none |
| AF: | 8x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 4870 1GB |
|
98 FPS |
| Radeon HD 5830 |
|
97 FPS |
|
|
Supreme Commander 2
| Settings: | High |
| AA: | 8x |
| AF: | 16x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 5830 |
|
65 FPS |
| Radeon HD 4870 1GB |
|
57 FPS |
|
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Radeon HD 5830 wins
(Based entirely on the benchmarks listed above)
When combining all game benchmark scores on this page together, the Radeon HD 5830 wins overall, by 18 FPS. Please note that we do not have the results of every benchmark ever done for these cards, so the results may differ wildly in different games.
| Radeon HD 5830 |
|
319 FPS |
| Radeon HD 4870 1GB |
|
301 FPS |
|
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4870 1GB |
|
150 Watts |
| Radeon HD 5830 |
|
175 Watts |
|
|
Memory Bandwidth
Theoretically speaking, the Radeon HD 5830 should be 11% faster than the Radeon HD 4870 1GB overall, because of its higher bandwidth. (explain)
| Radeon HD 5830 |
|
128000 MB/sec |
| Radeon HD 4870 1GB |
|
115200 MB/sec |
|
|
Texel Rate
The Radeon HD 5830 is quite a bit (about 49%) better at anisotropic filtering than the Radeon HD 4870 1GB. (explain)| Radeon HD 5830 |
|
44800 Mtexels/sec |
| Radeon HD 4870 1GB |
|
30000 Mtexels/sec |
|
|
Pixel Rate
The Radeon HD 5830 is a small bit (approximately 7%) faster with regards to AA than the Radeon HD 4870 1GB, and able to handle higher screen resolutions while still performing well. (explain)| Radeon HD 5830 |
|
12800 Mpixels/sec |
| Radeon HD 4870 1GB |
|
12000 Mpixels/sec |
|
|
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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Radeon HD 4870 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Radeon HD 5830Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | Radeon HD 4870 1GB | Radeon HD 5830 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | Jun 25, 2008 | February 25, 2010 |
| Code Name | RV770 XT | Cypress LE |
| Fab Process | 55 nm | 40 nm |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 750 MHz | 800 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 900 MHz | 1000 MHz |
| Unified Shaders | 800(160x5) | 1120(224x5) |
| Texture Mapping Units | 40 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
| Power (Max TDP) | 150 watts | 175 watts |
| Shader Model | 4.1 | 5.0 |
| Bandwidth | 115200 MB/sec | 128000 MB/sec |
| Texel Rate | 30000 Mtexels/sec | 44800 Mtexels/sec |
| Pixel Rate | 12000 Mpixels/sec | 12800 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
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