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Radeon HD 5450 vs Radeon R7 250X 2GB

Intro

The Radeon HD 5450 has a GPU core clock speed of 650 MHz, and the 512 MB of DDR3 RAM runs at 800 MHz through a 64-bit bus. It also features 80(16x5) Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.

Compare all of that to the Radeon R7 250X 2GB, which features clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs 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

In theory, the Radeon R7 250X 2GB will be 463% quicker than the Radeon HD 5450 overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon R7 250X 2GB is much (more or less 669%) faster with regards to texture filtering than the Radeon HD 5450. (explain)

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

Pixel Rate

The Radeon R7 250X 2GB is much (about 515%) faster with regards to anti-aliasing than the Radeon HD 5450, and also should be able to handle higher screen resolutions without losing too much performance. (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

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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 maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 can be processed per second. This figure 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - 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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