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Radeon HD 4350 vs Radeon HD 5450

Intro

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

Compare those specifications to the Radeon HD 5450, which comes with a GPU core clock speed of 650 MHz, and 512 MB of DDR3 memory running at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

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

Performance-wise, the Radeon HD 5450 should in theory be a lot superior to the Radeon HD 4350 overall. (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 bit (about 13%) more effective 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

If running with a high resolution is important to you, then the Radeon HD 5450 is superior to the Radeon HD 4350, though only just barely. (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

Radeon HD 4350

Radeon HD 5450

Specifications

Display 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 information (measured in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Radeon HD 4350

Radeon HD 5450

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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