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Radeon HD 6750 1GB vs Radeon RX 460 2GB

Intro

The Radeon HD 6750 1GB has a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It features 720 SPUs, 36 Texture Address Units, and 16 ROPs.

Compare all of that to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has set the core frequency at 1090 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this particular model. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB 75 Watts
Radeon HD 6750 1GB 86 Watts
Difference: 11 Watts (15%)

Memory Bandwidth

In theory, the Radeon RX 460 2GB should be 75% faster than the Radeon HD 6750 1GB in general, because of its greater bandwidth. (explain)

Radeon RX 460 2GB 112000 MB/sec
Radeon HD 6750 1GB 64000 MB/sec
Difference: 48000 (75%)

Texel Rate

The Radeon RX 460 2GB is much (approximately 134%) better at texture filtering than the Radeon HD 6750 1GB. (explain)

Radeon RX 460 2GB 61040 Mtexels/sec
Radeon HD 6750 1GB 26100 Mtexels/sec
Difference: 34940 (134%)

Pixel Rate

The Radeon RX 460 2GB will be much (approximately 50%) better at full screen anti-aliasing than the Radeon HD 6750 1GB, and will be capable of handling higher screen resolutions better. (explain)

Radeon RX 460 2GB 17440 Mpixels/sec
Radeon HD 6750 1GB 11600 Mpixels/sec
Difference: 5840 (50%)

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 6750 1GB

Amazon.com

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Radeon RX 460 2GB

Amazon.com

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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 6750 1GB Radeon RX 460 2GB
Manufacturer AMD AMD
Year January 2011 August 2016
Code Name Juniper Pro Polaris 11
Memory 1024 MB 2048 MB
Core Speed 725 MHz 1090 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 86 watts 75 watts
Bandwidth 64000 MB/sec 112000 MB/sec
Texel Rate 26100 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 720 896
Texture Mapping Units 36 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 1040 million 3000 million
Bus PCIe 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 data (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. 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, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 6750 1GB

Amazon.com

Check prices at:

Radeon RX 460 2GB

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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