Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:

Radeon HD 5770 vs Radeon HD 6850


The Radeon HD 5770 has clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 6850, which has a GPU core clock speed of 775 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also is made up of 960 Stream Processors, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
Radeon HD 6850 127 Watts
Difference: 19 Watts (18%)

Memory Bandwidth

The Radeon HD 6850 should theoretically be a lot faster than the Radeon HD 5770 overall. (explain)

Radeon HD 6850 128000 MB/sec
Radeon HD 5770 76800 MB/sec
Difference: 51200 (67%)

Texel Rate

The Radeon HD 6850 is a small bit (approximately 9%) faster with regards to texture filtering than the Radeon HD 5770. (explain)

Radeon HD 6850 37200 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 3200 (9%)

Pixel Rate

The Radeon HD 6850 is much (more or less 82%) more effective at full screen anti-aliasing than the Radeon HD 5770, and will be capable of handling higher resolutions better. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon HD 5770 13600 Mpixels/sec
Difference: 11200 (82%)

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 5770

Radeon HD 6850

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.


Display Specifications

Hide Specifications

Model Radeon HD 5770 Radeon HD 6850
Manufacturer AMD AMD
Year October 13, 2009 October 2010
Code Name Juniper XT Barts Pro
Memory 1024 MB 1024 MB
Core Speed 850 MHz 775 MHz
Memory Speed 4800 MHz 4000 MHz
Power (Max TDP) 108 watts 127 watts
Bandwidth 76800 MB/sec 128000 MB/sec
Texel Rate 34000 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 13600 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 800(160x5) 960
Texture Mapping Units 40 48
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1040 million 1700 million
Bus PCIe 2.1 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip 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 the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.


5 Responses to “Radeon HD 5770 vs Radeon HD 6850”
William says:

Very helpful review..concise, informative and clear. I like the hot-links so you can examine technical issues in more detail. All in all, well done guys xD

PowerColor bald mit passiver Radeon HD 6850 - Forum de Luxx says:

[...] [...]

Giudizio configurazione pc - Pagina 2 - Forum di Tom's Hardware says:

[...] [...]

pouya says:

5770 2g ddr3 (crossfire) vs 6850 1g ddr5?

MIke says:

Great archival review. I was going to get a 5770 based on a 500watt power supply and I purchased a 6850 because I realized I had access to a 650watt power supply and this review confirmed my hopes that the 6850 is significantly faster!

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


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

WordPress Anti-Spam by WP-SpamShield