Compare any two graphics cards:
Radeon HD 4670 1GB vs Radeon HD 7950
IntroThe Radeon HD 4670 1GB comes with a clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory speed of 1100 MHz. It also uses a 128-bit bus, and makes use of 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 7950, which has a core clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthTheoretically, the Radeon HD 7950 should be quite a bit faster than the Radeon HD 4670 1GB in general. (explain)
Texel RateThe Radeon HD 7950 is quite a bit (more or less 273%) more effective at anisotropic filtering than the Radeon HD 4670 1GB. (explain)
Pixel RateThe Radeon HD 7950 is quite a bit (approximately 327%) better at anti-aliasing than the Radeon HD 4670 1GB, and capable of handling higher screen resolutions without losing too much performance. (explain)
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
Display Prices
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
Display Specifications
Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second. Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.
Display Prices
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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Comments
One Response to “Radeon HD 4670 1GB vs Radeon HD 7950”I have both 4670 1gb hdmi and 7950 3gb and am amazed how much the older and vastly smaller card can keep up doing general video watching. the power and heat savings is inverted too. i would have thought that the low power use would equate to no performance. that is so with new games but not with streaming video in both linux mint17.1 and windows 7 x64 professional. windows does have a much higher video card demand just running the OS for some reason as MInt 17.1 Mate has more 'eye candy' with Compiz -both computers eash have 8gb of ram and same phenom II 4 965BE and psu:750w components. linux 3D/2D and the 4000hd series amd drivers are out of the question so the x.org drivers do that work. i used 1080p, 1920x1080 monitor -24" and anLG 55" Plasma with compiz all jazzed up with the 4670 not a hitch or stutter no screen or image corruption and played you tube, metv streaming vid perfectly clearly.