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Radeon HD 5750 1GB vs Radeon HD 6570 (OEM) 2GB

Intro

The Radeon HD 5750 1GB has a core clock speed of 700 MHz and a GDDR5 memory speed of 1150 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is comprised of 720(144x5) SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the Radeon HD 6570 (OEM) 2GB, which features a core clock speed of 650 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB 50 Watts
Radeon HD 5750 1GB 86 Watts
Difference: 36 Watts (72%)

Memory Bandwidth

The Radeon HD 5750 1GB, in theory, should perform just a bit faster than the Radeon HD 6570 (OEM) 2GB in general. (explain)

Radeon HD 5750 1GB 73600 MB/sec
Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Difference: 9600 (15%)

Texel Rate

The Radeon HD 5750 1GB will be much (about 62%) better at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon HD 5750 1GB 25200 Mtexels/sec
Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Difference: 9600 (62%)

Pixel Rate

The Radeon HD 5750 1GB will be much (about 115%) more effective at AA than the Radeon HD 6570 (OEM) 2GB, and also capable of handling higher screen resolutions better. (explain)

Radeon HD 5750 1GB 11200 Mpixels/sec
Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Difference: 6000 (115%)

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 5750 1GB

Amazon.com

Radeon HD 6570 (OEM) 2GB

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 5750 1GB Radeon HD 6570 (OEM) 2GB
Manufacturer AMD AMD
Year October 13, 2009 February 2011
Code Name Juniper LE Turks
Fab Process 40 nm 40 nm
Bus PCIe 2.1 x16 PCIe 2.1 x16
Memory 1024 MB 1024 MB
Core Speed 700 MHz 650 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 4600 MHz 4000 MHz
Unified Shaders 720(144x5) 480
Texture Mapping Units 36 24
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1
Power (Max TDP) 86 watts 50 watts
Shader Model 5.0 5.0
Bandwidth 73600 MB/sec 64000 MB/sec
Texel Rate 25200 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 5200 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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

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