Compare any two graphics cards:
VS

Radeon R9 270 vs Radeon R9 285

Intro

The Radeon R9 270 comes with a GPU core clock speed of 900 MHz, and the 2048 MB of GDDR5 RAM runs at 1400 MHz through a 256-bit bus. It also is made up of 1280 Stream Processors, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 285, which features a clock frequency of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 285 8500 points
Radeon R9 270 5943 points
Difference: 2557 (43%)

Ethereum Mining Hash Rate

Radeon R9 285 18 Mh/s
Radeon R9 270 15 Mh/s
Difference: 3 (20%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
Radeon R9 285 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 270 is 2% faster than the Radeon R9 285 overall, due to its greater data rate. (explain)

Radeon R9 270 179200 MB/sec
Radeon R9 285 176000 MB/sec
Difference: 3200 (2%)

Texel Rate

The Radeon R9 285 should be much (approximately 43%) faster with regards to texture filtering than the Radeon R9 270. (explain)

Radeon R9 285 102816 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 30816 (43%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 285 is superior to the Radeon R9 270, but not by far. (explain)

Radeon R9 285 29376 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 576 (2%)

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 R9 270

Amazon.com

Check prices at:

Radeon R9 285

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 R9 270 Radeon R9 285
Manufacturer AMD AMD
Year November 2013 September 2014
Code Name Curacao Pro Tonga PRO
Memory 2048 MB 2048 MB
Core Speed 900 MHz 918 MHz
Memory Speed 5600 MHz 5500 MHz
Power (Max TDP) 150 watts 190 watts
Bandwidth 179200 MB/sec 176000 MB/sec
Texel Rate 72000 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 28800 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 1280 1792
Texture Mapping Units 80 112
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 2800 million 5000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on 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 reach the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 270

Amazon.com

Check prices at:

Radeon R9 285

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