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Radeon HD 6450 (OEM) 1GB vs Radeon R7 M265

Intro

The Radeon HD 6450 (OEM) 1GB has a GPU clock speed of 750 MHz, and the 1024 MB of GDDR5 RAM is set to run at 900 MHz through a 64-bit bus. It also features 160 SPUs, 8 Texture Address Units, and 4 ROPs.

Compare all of that to the Radeon R7 M265, which features clock speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M265 will be 11% quicker than the Radeon HD 6450 (OEM) 1GB in general, because of its greater bandwidth. (explain)

Radeon R7 M265 32000 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 3200 (11%)

Texel Rate

The Radeon R7 M265 will be quite a bit (more or less 190%) better at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon R7 M265 17400 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 11400 (190%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R7 M265 is the winner, by far. (explain)

Radeon R7 M265 5800 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 2800 (93%)

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) 1GB

Amazon.com

Check prices at:

Radeon R7 M265

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) 1GB Radeon R7 M265
Manufacturer AMD AMD
Year February 2011 May 1 2014
Code Name Caicos Opal XT
Memory 1024 MB 2048 MB
Core Speed 750 MHz 725 MHz
Memory Speed 3600 MHz 2000 MHz
Power (Max TDP) 31 watts (Unknown) watts
Bandwidth 28800 MB/sec 32000 MB/sec
Texel Rate 6000 Mtexels/sec 17400 Mtexels/sec
Pixel Rate 3000 Mpixels/sec 5800 Mpixels/sec
Unified Shaders 160 384
Texture Mapping Units 8 24
Render Output Units 4 8
Bus Type GDDR5 DDR3
Bus Width 64-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 370 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics 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 amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 6450 (OEM) 1GB

Amazon.com

Check prices at:

Radeon R7 M265

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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