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Radeon HD 4770 vs Radeon R9 M365X

Intro

The Radeon HD 4770 features core speeds of 750 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 memory. It features 640(128x5) SPUs along with 32 TAUs and 16 ROPs.

Compare all of that to the Radeon R9 M365X, which comes with clock speeds of 925 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

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 much superior to 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 is much (approximately 54%) better at 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 much (more or less 23%) more effective at AA than the Radeon HD 4770, and will be capable of handling higher resolutions without losing too much performance. (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 largest amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach 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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