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Radeon HD 4770 vs Radeon R9 M365X

Intro

The Radeon HD 4770 has a clock frequency of 750 MHz and a GDDR5 memory speed of 800 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 640(128x5) SPUs, 32 TAUs, and 16 Raster Operation Units.

Compare those specifications to the Radeon R9 M365X, which has GPU clock speed of 925 MHz, and 4096 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M365X is 41% quicker than the Radeon HD 4770 in general, due to its greater bandwidth. (explain)

Radeon R9 M365X 72000 MB/sec
Radeon HD 4770 51200 MB/sec
Difference: 20800 (41%)

Texel Rate

The Radeon R9 M365X is a lot (more or less 54%) faster with regards to AF than the Radeon HD 4770. (explain)

Radeon R9 M365X 37000 Mtexels/sec
Radeon HD 4770 24000 Mtexels/sec
Difference: 13000 (54%)

Pixel Rate

The Radeon R9 M365X should be a lot (more or less 23%) better at anti-aliasing than the Radeon HD 4770, and also should be able to handle higher resolutions while still performing well. (explain)

Radeon R9 M365X 14800 Mpixels/sec
Radeon HD 4770 12000 Mpixels/sec
Difference: 2800 (23%)

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 4770

Amazon.com

Check prices at:

Radeon R9 M365X

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 4770 Radeon R9 M365X
Manufacturer AMD AMD
Year Apr 28, 2009 2015
Code Name RV740 Cape Verde
Memory 512 MB 4096 MB
Core Speed 750 MHz 925 MHz
Memory Speed 3200 MHz 4500 MHz
Power (Max TDP) 80 watts (Unknown) watts
Bandwidth 51200 MB/sec 72000 MB/sec
Texel Rate 24000 Mtexels/sec 37000 Mtexels/sec
Pixel Rate 12000 Mpixels/sec 14800 Mpixels/sec
Unified Shaders 640(128x5) 640
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 826 million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few 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 4770

Amazon.com

Check prices at:

Radeon R9 M365X

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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