Compare any two graphics cards:
VS

Radeon HD 6850 vs Radeon HD 7770

Intro

The Radeon HD 6850 uses a 40 nm design. AMD has set the core speed at 775 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this specific model. It features 960 SPUs as well as 48 TAUs and 32 ROPs.

Compare those specs to the Radeon HD 7770, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1125 MHz on this particular card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
Radeon HD 6850 127 Watts
Difference: 47 Watts (59%)

Memory Bandwidth

Performance-wise, the Radeon HD 6850 should in theory be quite a bit superior to the Radeon HD 7770 overall. (explain)

Radeon HD 6850 128000 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 56000 (78%)

Texel Rate

The Radeon HD 7770 should be just a bit (approximately 8%) more effective at anisotropic filtering than the Radeon HD 6850. (explain)

Radeon HD 7770 40000 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 2800 (8%)

Pixel Rate

The Radeon HD 6850 will be quite a bit (more or less 55%) more effective at FSAA than the Radeon HD 7770, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon HD 7770 16000 Mpixels/sec
Difference: 8800 (55%)

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 6850

Amazon.com

Radeon HD 7770

Amazon.com

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 6850 Radeon HD 7770
Manufacturer AMD AMD
Year October 2010 February 2012
Code Name Barts Pro Cape Verde XT
Fab Process 40 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 1024 MB 1024 MB
Core Speed 775 MHz 1000 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 4000 MHz 4500 MHz
Unified Shaders 960 640
Texture Mapping Units 48 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2
Power (Max TDP) 127 watts 80 watts
Shader Model 5.0 5.0
Bandwidth 128000 MB/sec 72000 MB/sec
Texel Rate 37200 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 24800 Mpixels/sec 16000 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at handling 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 the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

9 Responses to “Radeon HD 6850 vs Radeon HD 7770”

[...] PC My PC Specs Monitor: View Sonic 27inch LED CPU: Core i7 2600K Cooler: Cooler Master H50 Motherboard: Msi P67-AGD 65 B3 Memory: G.Skills 4GB GPU: MSI GTX 560Ti Hawk O.C HDD: W.D Cavier Black 1TB (INTEL 40GB SSD) Chassis: Haf X 942 PSU: TT 800W (ThermalTake) Soundcard: Creative Xifi-Titanium Fitality Pro OS: Windows 7 64-BIT My Achievements Total Achievements: 1 This one is help you a lot. Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare [...]

[...] out these sites : Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare & GeForce GTX 550 Ti vs Radeon HD 6850 – Performance Comparison Benchmarks @ Hardware [...]

[...] mismo renombrado y cambiado el hdmi a 1.4a en vez hdmi 1.3 Ahora pongo la 6850 frente a la 7770 Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare Perdona pero decir que una 7770 es un reemplazo de la 5770 o 6770 es un insulto a nuestra [...]

[...] Posted by CarlonSamuels Got some extra cash i am going with the HD 7770 !!!!!!! Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare Check this out !!!! HD7770 (128 bit) beats the HD6850 (256 bit) only in power consumption. But [...]

[...] or MSI 7770. Your expert advice on which to choose, topgear? Or should I make a new thread? Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare Performance wise HD6850(256 bit) is always better than HD7770(128 bit), although HD7770 with its [...]

[...] More gpu insight >Saphire Radeon HD 6850 Radeon HD 7770 Radeon HD 6850 The differences between them $20 difference with the 6850 being better than the 7770. If you can spring for it, go for the [...]

[...] ummm 6850 is 256 bit memory interface while 7700 is 128 bit. there are some other mismatch too: Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare technically 6850 has higher configuration and higher price tag. Reply With Quote [...]

[...] VGA..comunque ti assicuro che sia una 6850 che una 6870....gliele suonano di brutto ad una 7770... Radeon HD 6850 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare Radeon HD 6870 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare per [...]

0013 says:

0215asbd0dsa
frh

fhhfghg

Your email address will not be published.


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>

WP-SpamFree by Pole Position Marketing