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Radeon HD 4850 512MB vs Radeon HD 5750 512MB

Intro

The Radeon HD 4850 512MB uses a 55 nm design. AMD has clocked the core frequency at 625 MHz. The GDDR3 memory is set to run at a speed 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 512MB, which features GPU core speed of 700 MHz, and 512 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also features 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Radeon HD 5750 512MB should theoretically be a small bit faster than the Radeon HD 4850 512MB in general. (explain)

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

Texel Rate

The Radeon HD 5750 512MB should be a little bit (approximately 1%) better at AF than the Radeon HD 4850 512MB. (explain)

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

Pixel Rate

The Radeon HD 5750 512MB will be a small bit (about 12%) more effective at full screen anti-aliasing than the Radeon HD 4850 512MB, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 5750 512MB 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

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Radeon HD 5750 512MB

Amazon.com

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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 512MB
Manufacturer AMD AMD
Year Jun 25, 2008 October 13, 2009
Code Name RV770 PRO Juniper LE
Memory 512 MB 512 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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4850 512MB

Amazon.com

Check prices at:

Radeon HD 5750 512MB

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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