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

Intro

The GeForce GTX 470 comes with core clock speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 RAM. It features 448 SPUs as well as 56 Texture Address Units and 40 Rasterization Operator Units.

Compare those specifications to the Radeon HD 6570 (OEM) 2GB, which comes with GPU core speed of 650 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also features 480 Stream Processors, 24 TAUs, and 8 ROPs.

(No game benchmarks for this combination yet.)

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

The GeForce GTX 470 should theoretically perform much faster than the Radeon HD 6570 (OEM) 2GB overall. (explain)

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

Texel Rate

The GeForce GTX 470 is quite a bit (more or less 118%) faster with regards to texture 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 should be much (more or less 367%) better at anti-aliasing than the Radeon HD 6570 (OEM) 2GB, and also capable of handling higher screen resolutions more effectively. (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

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

Model GeForce GTX 470 Radeon HD 6570 (OEM) 2GB
Manufacturer nVidia AMD
Year March 2010 February 2011
Code Name GF100 Turks
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe 2.1 x16
Memory 1280 MB 1024 MB
Core Speed 607 MHz 650 MHz
Shader Speed 1215 MHz (N/A) MHz
Memory Speed 837 MHz (3348 MHz effective) 1000 MHz (4000 MHz effective)
Unified Shaders 448 480
Texture Mapping Units 56 24
Render Output Units 40 8
Bus Type GDDR5 GDDR5
Bus Width 320-bit 128-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 215 watts 50 watts
Shader Model 5.0 5.0
Bandwidth 133920 MB/sec 64000 MB/sec
Texel Rate 33992 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 5200 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

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