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

Intro

The GeForce GTX 470 uses a 40 nm design. nVidia has clocked the core frequency at 607 MHz. The GDDR5 memory runs at a speed of 837 MHz on this card. It features 448 SPUs along with 56 Texture Address Units and 40 ROPs.

Compare all of that to the Radeon HD 6570 (OEM) 2GB, which features a GPU core clock speed of 650 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 480 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

(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

In theory, the GeForce GTX 470 will be 109% quicker than the Radeon HD 6570 (OEM) 2GB in general, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 470 will be much (approximately 118%) more effective at 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

If running with a high screen resolution is important to you, then the GeForce GTX 470 is superior to the Radeon HD 6570 (OEM) 2GB, and very much so. (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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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 of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

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