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Radeon HD 5450 vs Radeon R7 250X 2GB

Intro

The Radeon HD 5450 comes with core clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Compare those specs to the Radeon R7 250X 2GB, which uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory is set to run at a speed of 1125 MHz on this specific card. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450 19 Watts
Radeon R7 250X 2GB 95 Watts
Difference: 76 Watts (400%)

Memory Bandwidth

The Radeon R7 250X 2GB should theoretically be a lot faster than the Radeon HD 5450 in general. (explain)

Radeon R7 250X 2GB 72000 MB/sec
Radeon HD 5450 12800 MB/sec
Difference: 59200 (463%)

Texel Rate

The Radeon R7 250X 2GB will be much (about 669%) faster with regards to AF than the Radeon HD 5450. (explain)

Radeon R7 250X 2GB 40000 Mtexels/sec
Radeon HD 5450 5200 Mtexels/sec
Difference: 34800 (669%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 250X 2GB is the winner, by a large margin. (explain)

Radeon R7 250X 2GB 16000 Mpixels/sec
Radeon HD 5450 2600 Mpixels/sec
Difference: 13400 (515%)

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 5450

Amazon.com

Check prices at:

Radeon R7 250X 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.

Specifications

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Model Radeon HD 5450 Radeon R7 250X 2GB
Manufacturer AMD AMD
Year February 4, 2010 February 2014
Code Name Cedar PRO Cape Verde XT
Memory 512 MB 2048 MB
Core Speed 650 MHz 1000 MHz
Memory Speed 1600 MHz 4500 MHz
Power (Max TDP) 19 watts 95 watts
Bandwidth 12800 MB/sec 72000 MB/sec
Texel Rate 5200 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 2600 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 80(16x5) 640
Texture Mapping Units 8 40
Render Output Units 4 16
Bus Type DDR3 GDDR5
Bus Width 64-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 292 million 1500 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 5450

Amazon.com

Check prices at:

Radeon R7 250X 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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