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Radeon HD 4770 vs Radeon R9 M365X

Intro

The Radeon HD 4770 has core clock speeds of 750 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 RAM. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 ROPs.

Compare all that to the Radeon R9 M365X, which features a clock speed of 925 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M365X should in theory be quite a bit better than the Radeon HD 4770 overall. (explain)

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

Texel Rate

The Radeon R9 M365X will be much (about 54%) faster with regards to anisotropic filtering 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%) faster with regards to FSAA than the Radeon HD 4770, and should be able to handle higher screen 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 max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum 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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