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Radeon HD 5570 vs Radeon HD 7770

Intro

The Radeon HD 5570 features a GPU core clock speed of 650 MHz, and the 512 MB of DDR3 memory is set to run at 900 MHz through a 128-bit bus. It also features 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the Radeon HD 7770, which has core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570 43 Watts
Radeon HD 7770 80 Watts
Difference: 37 Watts (86%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7770 should theoretically be quite a bit better than the Radeon HD 5570 overall. (explain)

Radeon HD 7770 72000 MB/sec
Radeon HD 5570 28800 MB/sec
Difference: 43200 (150%)

Texel Rate

The Radeon HD 7770 is much (about 208%) more effective at AF than the Radeon HD 5570. (explain)

Radeon HD 7770 40000 Mtexels/sec
Radeon HD 5570 13000 Mtexels/sec
Difference: 27000 (208%)

Pixel Rate

The Radeon HD 7770 will be quite a bit (approximately 208%) faster with regards to anti-aliasing than the Radeon HD 5570, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 7770 16000 Mpixels/sec
Radeon HD 5570 5200 Mpixels/sec
Difference: 10800 (208%)

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 5570

Amazon.com

Check prices at:

Radeon HD 7770

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 5570 Radeon HD 7770
Manufacturer AMD AMD
Year February 9, 2010 February 2012
Code Name Redwood PRO Cape Verde XT
Memory 512 MB 1024 MB
Core Speed 650 MHz 1000 MHz
Memory Speed 1800 MHz 4500 MHz
Power (Max TDP) 43 watts 80 watts
Bandwidth 28800 MB/sec 72000 MB/sec
Texel Rate 13000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 5200 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 400(80x5) 640
Texture Mapping Units 20 40
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 627 million 1500 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 3.2 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has 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 better 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 in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock 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 output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 5570

Amazon.com

Check prices at:

Radeon HD 7770

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 5570 vs Radeon HD 7770”
ASUS HD7770 - LOW FPS Issues says:

[...] - core 2 duo e4600 2.4ghz , ati 5570 , 2 gb ddr2 7770 needs more power than 5570. check this Radeon HD 5570 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare........................... ashis_lakra is [...]

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