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Radeon HD 4670 1GB vs Radeon HD 6570 (OEM) 1GB

Intro

The Radeon HD 4670 1GB has a core clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1100 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.

Compare those specs to the Radeon HD 6570 (OEM) 1GB, which makes use of a 40 nm design. AMD has set the core speed at 650 MHz. The GDDR3 RAM works at a speed of 900 MHz on this model. It features 480 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB 50 Watts
Radeon HD 4670 1GB 70 Watts
Difference: 20 Watts (40%)

Memory Bandwidth

In theory, the Radeon HD 4670 1GB will be 22% faster than the Radeon HD 6570 (OEM) 1GB overall, because of its higher data rate. (explain)

Radeon HD 4670 1GB 35200 MB/sec
Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Difference: 6400 (22%)

Texel Rate

The Radeon HD 4670 1GB will be quite a bit (more or less 54%) better at AF than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 4670 1GB 24000 Mtexels/sec
Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Difference: 8400 (54%)

Pixel Rate

The Radeon HD 4670 1GB should be a small bit (more or less 15%) faster with regards to FSAA than the Radeon HD 6570 (OEM) 1GB, and will be capable of handling higher resolutions better. (explain)

Radeon HD 4670 1GB 6000 Mpixels/sec
Radeon HD 6570 (OEM) 1GB 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 6570 (OEM) 1GB

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.

Specifications

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Model Radeon HD 4670 1GB Radeon HD 6570 (OEM) 1GB
Manufacturer AMD AMD
Year Sep 10, 2008 February 2011
Code Name RV730 XT Turks
Memory 1024 MB 1024 MB
Core Speed 750 MHz 650 MHz
Memory Speed 2200 MHz 1800 MHz
Power (Max TDP) 70 watts 50 watts
Bandwidth 35200 MB/sec 28800 MB/sec
Texel Rate 24000 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 320(64x5) 480
Texture Mapping Units 32 24
Render Output Units 8 8
Bus Type GDDR4/GDDR3/DDR3/DDR2 GDDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 514 million 715 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 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of 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

Hide Prices

Radeon HD 4670 1GB

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 1GB

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 6570 (OEM) 1GB”
ATI Vcard selection - iSTORYA.NET says:

[...] sa 6570 which is direct x11... pero performace wise, mas choyan ko sa 4670 check this link: Radeon HD 4670 1GB vs Radeon HD 6570 (OEM) 1GB – Performance Comparison Benchmarks @ Hardware ... ====> kng pra nimo asa ang mas maau, den pdayon lng hehehehe... sayang wla nimo naabtan ang [...]

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