Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 6970 vs Radeon R5 M255

Intro

The Radeon HD 6970 has clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

Compare all that to the Radeon R5 M255, which features GPU core speed of 940 MHz, and 2048 MB of DDR3 memory running at 1000 MHz through a 64-bit bus. It also is made up of 320 Stream Processors, 20 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 6970 should theoretically be much superior to the Radeon R5 M255 overall. (explain)

Radeon HD 6970 176000 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 160000 (1000%)

Texel Rate

The Radeon HD 6970 should be a lot (about 349%) better at AF than the Radeon R5 M255. (explain)

Radeon HD 6970 84480 Mtexels/sec
Radeon R5 M255 18800 Mtexels/sec
Difference: 65680 (349%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6970 is a better choice, and very much so. (explain)

Radeon HD 6970 28160 Mpixels/sec
Radeon R5 M255 7520 Mpixels/sec
Difference: 20640 (274%)

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 6970

Amazon.com

Check prices at:

Radeon R5 M255

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 6970 Radeon R5 M255
Manufacturer AMD AMD
Year December 2010 June 2014
Code Name Cayman XT Jet Pro
Memory 2048 MB 2048 MB
Core Speed 880 MHz 940 MHz
Memory Speed 5500 MHz 2000 MHz
Power (Max TDP) 250 watts (Unknown) watts
Bandwidth 176000 MB/sec 16000 MB/sec
Texel Rate 84480 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 1536 320
Texture Mapping Units 96 20
Render Output Units 32 8
Bus Type GDDR5 DDR3
Bus Width 256-bit 64-bit
Fab Process 40 nm 28 nm
Transistors 2640 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher 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 amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 6970

Amazon.com

Check prices at:

Radeon R5 M255

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