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

Intro

The Radeon HD 6450 (OEM) comes with a core clock frequency of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also uses a 64-bit bus, and makes use of a 40 nm design. It is made up of 160 SPUs, 8 TAUs, and 4 Raster Operation Units.

Compare all that to the Radeon RX 470 4GB, which comes with core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

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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 in theory be quite a bit 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 should be a lot (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 quite a bit (more or less 1085%) more effective at full screen anti-aliasing than the Radeon HD 6450 (OEM), and will be capable of handling higher screen resolutions without losing too much performance. (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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach 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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