Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 7850 vs Radeon R9 285

Intro

The Radeon HD 7850 uses a 28 nm design. AMD has set the core speed at 860 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this model. It features 1024 SPUs along with 64 Texture Address Units and 32 ROPs.

Compare all that to the Radeon R9 285, which makes use of a 28 nm design. AMD has set the core frequency at 918 MHz. The GDDR5 memory runs at a speed of 1375 MHz on this specific model. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator 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 HD 7850 5200 points
Difference: 3300 (63%)

Ethereum Mining Hash Rate

Radeon R9 285 18 Mh/s
Radeon HD 7850 13 Mh/s
Difference: 5 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
Radeon R9 285 190 Watts
Difference: 60 Watts (46%)

Memory Bandwidth

As far as performance goes, the Radeon R9 285 should in theory be a small bit superior to the Radeon HD 7850 overall. (explain)

Radeon R9 285 176000 MB/sec
Radeon HD 7850 153600 MB/sec
Difference: 22400 (15%)

Texel Rate

The Radeon R9 285 is quite a bit (more or less 87%) faster with regards to anisotropic filtering than the Radeon HD 7850. (explain)

Radeon R9 285 102816 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 47776 (87%)

Pixel Rate

The Radeon R9 285 is just a bit (more or less 7%) faster with regards to AA than the Radeon HD 7850, and should be capable of handling higher screen resolutions better. (explain)

Radeon R9 285 29376 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 1856 (7%)

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 7850

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 HD 7850 Radeon R9 285
Manufacturer AMD AMD
Year March 2012 September 2014
Code Name Pitcairn Pro Tonga PRO
Memory 2048 MB 2048 MB
Core Speed 860 MHz 918 MHz
Memory Speed 4800 MHz 5500 MHz
Power (Max TDP) 130 watts 190 watts
Bandwidth 153600 MB/sec 176000 MB/sec
Texel Rate 55040 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 27520 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 1024 1792
Texture Mapping Units 64 112
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 11.1 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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 ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7850

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