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Radeon HD 4850 512MB vs Radeon HD 5750 1GB

Intro

The Radeon HD 4850 512MB uses a 55 nm design. AMD has set the core frequency at 625 MHz. The GDDR3 memory works at a frequency of 993 MHz on this particular model. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.

Compare those specs to the Radeon HD 5750 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 700 MHz. The GDDR5 memory works at a frequency of 1150 MHz on this specific card. It features 720(144x5) SPUs as well as 36 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB 86 Watts
Radeon HD 4850 512MB 110 Watts
Difference: 24 Watts (28%)

Memory Bandwidth

The Radeon HD 5750 1GB should in theory be a small bit faster than the Radeon HD 4850 512MB overall. (explain)

Radeon HD 5750 1GB 73600 MB/sec
Radeon HD 4850 512MB 63552 MB/sec
Difference: 10048 (16%)

Texel Rate

The Radeon HD 5750 1GB will be just a bit (approximately 1%) better at anisotropic filtering than the Radeon HD 4850 512MB. (explain)

Radeon HD 5750 1GB 25200 Mtexels/sec
Radeon HD 4850 512MB 25000 Mtexels/sec
Difference: 200 (1%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5750 1GB is a better choice, but only just. (explain)

Radeon HD 5750 1GB 11200 Mpixels/sec
Radeon HD 4850 512MB 10000 Mpixels/sec
Difference: 1200 (12%)

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 4850 512MB

Amazon.com

Check prices at:

Radeon HD 5750 1GB

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 4850 512MB Radeon HD 5750 1GB
Manufacturer AMD AMD
Year Jun 25, 2008 October 13, 2009
Code Name RV770 PRO Juniper LE
Memory 512 MB 1024 MB
Core Speed 625 MHz 700 MHz
Memory Speed 1986 MHz 4600 MHz
Power (Max TDP) 110 watts 86 watts
Bandwidth 63552 MB/sec 73600 MB/sec
Texel Rate 25000 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 10000 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 800(160x5) 720(144x5)
Texture Mapping Units 40 36
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 956 million 1040 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 can be processed in one second. This is worked out by multiplying the total texture units of the card by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 4850 512MB

Amazon.com

Check prices at:

Radeon HD 5750 1GB

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.

Comments

One Response to “Radeon HD 4850 512MB vs Radeon HD 5750 1GB”
Radeonhd hd4850 | Fotofill says:

[...] Radeon HD 4850 512MB vs Radeon HD 5750 1GB – Performance …Radeon HD 5750 1GB wins. (Based entirely on the benchmarks listed above). When combining all game benchmark scores on this page together, the Radeon … [...]

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