 |
 |
Radeon HD 4670 1GB vs Radeon HD 5670
Intro
The Radeon HD 4670 1GB features a clock speed of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory speed of 1100 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is comprised of 320(64x5) SPUs, 32 TAUs, and 8 Raster Operation Units.Compare those specs to the Radeon HD 5670, which makes use of a 40 nm design. AMD has set the core speed at 775 MHz. The GDDR5 memory works at a speed of 1000 MHz on this card. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5670 |
|
61 Watts |
| Radeon HD 4670 1GB |
|
70 Watts |
|
|
Memory Bandwidth
As far as performance goes, the Radeon HD 5670 should in theory be quite a bit superior to the Radeon HD 4670 1GB in general. (explain)
| Radeon HD 5670 |
|
64000 MB/sec |
| Radeon HD 4670 1GB |
|
35200 MB/sec |
|
|
Texel Rate
The Radeon HD 4670 1GB should be a lot (approximately 55%) faster with regards to AF than the Radeon HD 5670. (explain)| Radeon HD 4670 1GB |
|
24000 Mtexels/sec |
| Radeon HD 5670 |
|
15500 Mtexels/sec |
|
|
Pixel Rate
The Radeon HD 5670 is a bit (about 3%) more effective at anti-aliasing than the Radeon HD 4670 1GB, and should be capable of handling higher resolutions without slowing down too much. (explain)| Radeon HD 5670 |
|
6200 Mpixels/sec |
| Radeon HD 4670 1GB |
|
6000 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
Radeon HD 4670 1GBAmazon.com
Check prices at:
|
Radeon HD 5670Amazon.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.
Specifications
| Model | Radeon HD 4670 1GB | Radeon HD 5670 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Sep 10, 2008 | January 14, 2010 |
| Code Name | RV730 XT | Redwood XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 750 MHz | 775 MHz |
| Memory Speed | 2200 MHz | 4000 MHz |
| Power (Max TDP) | 70 watts | 61 watts |
| Bandwidth | 35200 MB/sec | 64000 MB/sec |
| Texel Rate | 24000 Mtexels/sec | 15500 Mtexels/sec |
| Pixel Rate | 6000 Mpixels/sec | 6200 Mpixels/sec |
| Unified Shaders | 320(64x5) | 400(80x5) |
| Texture Mapping Units | 32 | 20 |
| Render Output Units | 8 | 8 |
| Bus Type | GDDR4/GDDR3/DDR3/DDR2 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 514 million | 627 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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core clock 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 processed in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 4670 1GBAmazon.com
Check prices at:
|
Radeon HD 5670Amazon.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 4670 1GB vs Radeon HD 5670”IF WE ARE TALKING = EFFICIENCY CLOCK FOR CLOCK and the 4670 had gddr5 like the 5670 i would say the 4670 would be the best as two stand alone cards on 55 and 40nm 5670 gets the nod
but if at the same nm and clock and same ram id take the 4670 over the 5670
that texture fillrate is insane really and at 800mhz with high bandwidth ram it could be a amazing gpu