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Radeon HD 6450 (OEM) vs Radeon RX 470 4GB

Intro

The Radeon HD 6450 (OEM) comes with clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Compare those specifications to the Radeon RX 470 4GB, which makes use of a 14 nm design. AMD has clocked the core speed at 926 MHz. The GDDR5 RAM works at a speed of 1650 MHz on this specific card. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 31 Watts
Radeon RX 470 4GB 120 Watts
Difference: 89 Watts (287%)

Memory Bandwidth

The Radeon RX 470 4GB should theoretically be much faster than the Radeon HD 6450 (OEM) in general. (explain)

Radeon RX 470 4GB 211200 MB/sec
Radeon HD 6450 (OEM) 12800 MB/sec
Difference: 198400 (1550%)

Texel Rate

The Radeon RX 470 4GB is quite a bit (approximately 2271%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 470 4GB 118528 Mtexels/sec
Radeon HD 6450 (OEM) 5000 Mtexels/sec
Difference: 113528 (2271%)

Pixel Rate

The Radeon RX 470 4GB is much (approximately 1085%) faster with regards to full screen anti-aliasing than the Radeon HD 6450 (OEM), and capable of handling higher resolutions more effectively. (explain)

Radeon RX 470 4GB 29632 Mpixels/sec
Radeon HD 6450 (OEM) 2500 Mpixels/sec
Difference: 27132 (1085%)

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 6450 (OEM)

Amazon.com

Check prices at:

Radeon RX 470 4GB

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 6450 (OEM) Radeon RX 470 4GB
Manufacturer AMD AMD
Year February 2011 August 2016
Code Name Caicos Polaris 10
Memory 512 MB 4096 MB
Core Speed 625 MHz 926 MHz
Memory Speed 1600 MHz 6600 MHz
Power (Max TDP) 31 watts 120 watts
Bandwidth 12800 MB/sec 211200 MB/sec
Texel Rate 5000 Mtexels/sec 118528 Mtexels/sec
Pixel Rate 2500 Mpixels/sec 29632 Mpixels/sec
Unified Shaders 160 2048
Texture Mapping Units 8 128
Render Output Units 4 32
Bus Type GDDR3 GDDR5
Bus Width 64-bit 256-bit
Fab Process 40 nm 14 nm
Transistors 370 million 5700 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6450 (OEM)

Amazon.com

Check prices at:

Radeon RX 470 4GB

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.

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