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Radeon HD 5770 vs Radeon R7 250X

Intro

The Radeon HD 5770 has a GPU core speed of 850 MHz, and the 1024 MB of GDDR5 RAM runs at 1200 MHz through a 128-bit bus. It also is made up of 800(160x5) Stream Processors, 40 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon R7 250X, which has core speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 95 Watts
Radeon HD 5770 108 Watts
Difference: 13 Watts (14%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5770 should theoretically be a little bit superior to the Radeon R7 250X overall. (explain)

Radeon HD 5770 76800 MB/sec
Radeon R7 250X 72000 MB/sec
Difference: 4800 (7%)

Texel Rate

The Radeon R7 250X is just a bit (more or less 18%) more effective at anisotropic filtering than the Radeon HD 5770. (explain)

Radeon R7 250X 40000 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 6000 (18%)

Pixel Rate

The Radeon R7 250X will be just a bit (more or less 18%) faster with regards to full screen anti-aliasing than the Radeon HD 5770, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R7 250X 16000 Mpixels/sec
Radeon HD 5770 13600 Mpixels/sec
Difference: 2400 (18%)

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 5770

Amazon.com

Check prices at:

Radeon R7 250X

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 5770 Radeon R7 250X
Manufacturer AMD AMD
Year October 13, 2009 February 2014
Code Name Juniper XT Cape Verde XT
Memory 1024 MB 1024 MB
Core Speed 850 MHz 1000 MHz
Memory Speed 4800 MHz 4500 MHz
Power (Max TDP) 108 watts 95 watts
Bandwidth 76800 MB/sec 72000 MB/sec
Texel Rate 34000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 13600 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 800(160x5) 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 1500 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially 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 5770

Amazon.com

Check prices at:

Radeon R7 250X

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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