Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 6790 vs Radeon R9 M395X

Intro

The Radeon HD 6790 has a GPU core clock speed of 840 MHz, and the 1024 MB of GDDR5 RAM runs at 1050 MHz through a 256-bit bus. It also features 800 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Compare that to the Radeon R9 M395X, which has GPU core speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X 125 Watts
Radeon HD 6790 150 Watts
Difference: 25 Watts (20%)

Memory Bandwidth

The Radeon R9 M395X should in theory be a little bit faster than the Radeon HD 6790 in general. (explain)

Radeon R9 M395X 160000 MB/sec
Radeon HD 6790 134400 MB/sec
Difference: 25600 (19%)

Texel Rate

The Radeon R9 M395X is quite a bit (more or less 175%) better at texture filtering than the Radeon HD 6790. (explain)

Radeon R9 M395X 92544 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 58944 (175%)

Pixel Rate

The Radeon R9 M395X should be quite a bit (more or less 72%) more effective at anti-aliasing than the Radeon HD 6790, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M395X 23136 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 9696 (72%)

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

Display Prices

Hide Prices

Radeon HD 6790

Amazon.com

Check prices at:

Radeon R9 M395X

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

Display Specifications

Hide Specifications

Model Radeon HD 6790 Radeon R9 M395X
Manufacturer AMD AMD
Year April 2011 2015
Code Name Barts LE Tonga
Memory 1024 MB 4096 MB
Core Speed 840 MHz 723 MHz
Memory Speed 4200 MHz 5000 MHz
Power (Max TDP) 150 watts 125 watts
Bandwidth 134400 MB/sec 160000 MB/sec
Texel Rate 33600 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 13440 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 800 2048
Texture Mapping Units 40 128
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1700 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6790

Amazon.com

Check prices at:

Radeon R9 M395X

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

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti-Spam by WP-SpamShield