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GeForce GTX 470 vs Radeon HD 6570 (OEM) 2GB

Intro

The GeForce GTX 470 has a core clock speed of 607 MHz and a GDDR5 memory frequency of 837 MHz. It also features a 320-bit bus, and uses a 40 nm design. It features 448 SPUs, 56 Texture Address Units, and 40 ROPs.

Compare those specifications to the Radeon HD 6570 (OEM) 2GB, which features a clock frequency of 650 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 24 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB 50 Watts
GeForce GTX 470 215 Watts
Difference: 165 Watts (330%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 470 should theoretically be quite a bit better than the Radeon HD 6570 (OEM) 2GB in general. (explain)

GeForce GTX 470 133920 MB/sec
Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Difference: 69920 (109%)

Texel Rate

The GeForce GTX 470 should be quite a bit (more or less 118%) better at anisotropic filtering than the Radeon HD 6570 (OEM) 2GB. (explain)

GeForce GTX 470 33992 Mtexels/sec
Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Difference: 18392 (118%)

Pixel Rate

The GeForce GTX 470 is a lot (more or less 367%) more effective at FSAA than the Radeon HD 6570 (OEM) 2GB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 470 24280 Mpixels/sec
Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Difference: 19080 (367%)

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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GeForce GTX 470

Amazon.com

Radeon HD 6570 (OEM) 2GB

Amazon.com

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 GeForce GTX 470 Radeon HD 6570 (OEM) 2GB
Manufacturer nVidia AMD
Year March 2010 February 2011
Code Name GF100 Turks
Memory 1280 MB 1024 MB
Core Speed 607 MHz 650 MHz
Memory Speed 3348 MHz 4000 MHz
Power (Max TDP) 215 watts 50 watts
Bandwidth 133920 MB/sec 64000 MB/sec
Texel Rate 33992 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 448 480
Texture Mapping Units 56 24
Render Output Units 40 8
Bus Type GDDR5 GDDR5
Bus Width 320-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 715 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

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