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Radeon HD 4350 vs Radeon HD 5450

Intro

The Radeon HD 4350 has a core clock frequency of 575 MHz and a DDR2 memory frequency of 500 MHz. It also uses a 64-bit bus, and makes use of a 55 nm design. It features 80(16x5) SPUs, 8 TAUs, and 4 ROPs.

Compare that to the Radeon HD 5450, which has a clock frequency of 650 MHz and a DDR3 memory frequency of 800 MHz. It also uses a 64-bit bus, and uses a 40 nm design. It is made up of 80(16x5) SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450 19 Watts
Radeon HD 4350 22 Watts
Difference: 3 Watts (16%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5450 should theoretically be much superior to the Radeon HD 4350 in general. (explain)

Radeon HD 5450 12800 MB/sec
Radeon HD 4350 8000 MB/sec
Difference: 4800 (60%)

Texel Rate

The Radeon HD 5450 should be a small bit (more or less 13%) better at anisotropic filtering than the Radeon HD 4350. (explain)

Radeon HD 5450 5200 Mtexels/sec
Radeon HD 4350 4600 Mtexels/sec
Difference: 600 (13%)

Pixel Rate

The Radeon HD 5450 should be just a bit (approximately 13%) better at AA than the Radeon HD 4350, and also able to handle higher resolutions better. (explain)

Radeon HD 5450 2600 Mpixels/sec
Radeon HD 4350 2300 Mpixels/sec
Difference: 300 (13%)

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 4350

Amazon.com

Radeon HD 5450

Amazon.com

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 4350 Radeon HD 5450
Manufacturer AMD AMD
Year Sep 30, 2008 February 4, 2010
Code Name RV710 Cedar PRO
Memory 512 MB 512 MB
Core Speed 575 MHz 650 MHz
Memory Speed 1000 MHz 1600 MHz
Power (Max TDP) 22 watts 19 watts
Bandwidth 8000 MB/sec 12800 MB/sec
Texel Rate 4600 Mtexels/sec 5200 Mtexels/sec
Pixel Rate 2300 Mpixels/sec 2600 Mpixels/sec
Unified Shaders 80(16x5) 80(16x5)
Texture Mapping Units 8 8
Render Output Units 4 4
Bus Type DDR2 DDR3
Bus Width 64-bit 64-bit
Fab Process 55 nm 40 nm
Transistors 242 million 292 million
Bus PCIe 2.0 x16, PCI PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Comments

2 Responses to “Radeon HD 4350 vs Radeon HD 5450”
Anonymous says:

HD 5450 is a Gud Graphics card for Entry Level gaming.

Radeon HD5450 Vs. HD4350 and Other Shitty Hardware « HD420p says:

[...] be an upgrade. Well I am here to inform you it’s not. I’ve tried to do a few online comparisons and the 5450 should edge it, it does on paper. The reality is. The 4350 turns my mediocre 1stgen [...]

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