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Radeon HD 4850 512MB vs Radeon HD 5750 1GB

Intro

The Radeon HD 4850 512MB comes with clock speeds of 625 MHz on the GPU, and 993 MHz on the 512 MB of GDDR3 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5750 1GB, which features clock speeds of 700 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 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

Theoretically, the Radeon HD 5750 1GB should be a little 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 is a little bit (about 1%) faster with regards to AF 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 using lots of anti-aliasing is important to you, then the Radeon HD 5750 1GB is superior to the Radeon HD 4850 512MB, not by a very large margin though. (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

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Radeon HD 5750 1GB

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 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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core 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 rate is also dependant on many 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

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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.

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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