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Radeon HD 5450 vs Radeon R7 250X 2GB

Intro

The Radeon HD 5450 has core 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 Texture Address Units and 4 ROPs.

Compare those specifications to the Radeon R7 250X 2GB, which comes with core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

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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

Performance-wise, the Radeon R7 250X 2GB should in theory be much better 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 (more or less 669%) more effective at 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 should be quite a bit (more or less 515%) better at anti-aliasing than the Radeon HD 5450, and will be able to handle higher resolutions while still performing well. (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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max 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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