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

Intro

The GeForce GTX 470 features core clock speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 memory. It features 448 SPUs along with 56 TAUs and 40 ROPs.

Compare those specifications to the Radeon HD 6570 (OEM) 2GB, which features core speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 480 SPUs along with 24 Texture Address Units and 8 Rasterization Operator 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 higher data rate. (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 quite a bit (approximately 118%) better 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

The GeForce GTX 470 should be a lot (about 367%) more effective at AA than the Radeon HD 6570 (OEM) 2GB, and should be able to handle higher 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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, 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 number of pixels the video card could possibly write to the 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 the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

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