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Radeon HD 5750 1GB vs Radeon HD 7870 XT

Intro

The Radeon HD 5750 1GB makes use of a 40 nm design. AMD has clocked the core speed at 700 MHz. The GDDR5 RAM works at a frequency of 1150 MHz on this card. It features 720(144x5) SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7870 XT, which has clock speeds of 925 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 96 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB 86 Watts
Radeon HD 7870 XT 185 Watts
Difference: 99 Watts (115%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7870 XT should theoretically be quite a bit superior to the Radeon HD 5750 1GB in general. (explain)

Radeon HD 7870 XT 192000 MB/sec
Radeon HD 5750 1GB 73600 MB/sec
Difference: 118400 (161%)

Texel Rate

The Radeon HD 7870 XT should be a lot (more or less 252%) faster with regards to AF than the Radeon HD 5750 1GB. (explain)

Radeon HD 7870 XT 88800 Mtexels/sec
Radeon HD 5750 1GB 25200 Mtexels/sec
Difference: 63600 (252%)

Pixel Rate

The Radeon HD 7870 XT will be much (more or less 164%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 1GB, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 7870 XT 29600 Mpixels/sec
Radeon HD 5750 1GB 11200 Mpixels/sec
Difference: 18400 (164%)

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

Check prices at:

Radeon HD 7870 XT

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 5750 1GB Radeon HD 7870 XT
Manufacturer AMD AMD
Year October 13, 2009 November 2012
Code Name Juniper LE Tahiti LE
Memory 1024 MB 2048 MB
Core Speed 700 MHz 925 MHz
Memory Speed 4600 MHz 6000 MHz
Power (Max TDP) 86 watts 185 watts
Bandwidth 73600 MB/sec 192000 MB/sec
Texel Rate 25200 Mtexels/sec 88800 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 720(144x5) 1536
Texture Mapping Units 36 96
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 4313 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 5750 1GB

Amazon.com

Check prices at:

Radeon HD 7870 XT

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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