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Radeon HD 4670 1GB vs Radeon HD 5570

Intro

The Radeon HD 4670 1GB features core clock speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 memory. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Compare all that to the Radeon HD 5570, which features GPU core speed of 650 MHz, and 512 MB of DDR3 RAM set to run at 900 MHz through a 128-bit bus. It also is made up of 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570 43 Watts
Radeon HD 4670 1GB 70 Watts
Difference: 27 Watts (63%)

Memory Bandwidth

The Radeon HD 4670 1GB, in theory, should perform much faster than the Radeon HD 5570 overall. (explain)

Radeon HD 4670 1GB 35200 MB/sec
Radeon HD 5570 28800 MB/sec
Difference: 6400 (22%)

Texel Rate

The Radeon HD 4670 1GB is much (more or less 85%) better at texture filtering than the Radeon HD 5570. (explain)

Radeon HD 4670 1GB 24000 Mtexels/sec
Radeon HD 5570 13000 Mtexels/sec
Difference: 11000 (85%)

Pixel Rate

The Radeon HD 4670 1GB is a bit (about 15%) more effective at FSAA than the Radeon HD 5570, and should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 4670 1GB 6000 Mpixels/sec
Radeon HD 5570 5200 Mpixels/sec
Difference: 800 (15%)

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

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Radeon HD 4670 1GB

Amazon.com

Check prices at:

Radeon HD 5570

Amazon.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

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Model Radeon HD 4670 1GB Radeon HD 5570
Manufacturer AMD AMD
Year Sep 10, 2008 February 9, 2010
Code Name RV730 XT Redwood PRO
Memory 1024 MB 512 MB
Core Speed 750 MHz 650 MHz
Memory Speed 2200 MHz 1800 MHz
Power (Max TDP) 70 watts 43 watts
Bandwidth 35200 MB/sec 28800 MB/sec
Texel Rate 24000 Mtexels/sec 13000 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 320(64x5) 400(80x5)
Texture Mapping Units 32 20
Render Output Units 8 8
Bus Type GDDR4/GDDR3/DDR3/DDR2 DDR3
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: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 processed in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 4670 1GB

Amazon.com

Check prices at:

Radeon HD 5570

Amazon.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 5570”
Ati asus HD 4670 mi ? 5570 mi ? says:

[...] [...]

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