Join Us On Facebook

Compare any two graphics cards:
VS

Radeon HD 6870 vs Radeon HD 7850

Intro

The Radeon HD 6870 makes use of a 40 nm design. ATi has set the core speed at 900 MHz. The GDDR5 memory works at a frequency of 1050 MHz on this particular card. It features 1120 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7850, which features clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
Radeon HD 6870 151 Watts
Difference: 21 Watts (16%)

Memory Bandwidth

Performance-wise, the Radeon HD 7850 should in theory be a bit superior to the Radeon HD 6870 in general. (explain)

Radeon HD 7850 153600 MB/sec
Radeon HD 6870 134400 MB/sec
Difference: 19200 (14%)

Texel Rate

The Radeon HD 7850 will be a bit (approximately 9%) better at anisotropic filtering than the Radeon HD 6870. (explain)

Radeon HD 7850 55040 Mtexels/sec
Radeon HD 6870 50400 Mtexels/sec
Difference: 4640 (9%)

Pixel Rate

The Radeon HD 6870 is a bit (more or less 5%) better at full screen anti-aliasing than the Radeon HD 7850, and should be able to handle higher resolutions more effectively. (explain)

Radeon HD 6870 28800 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 1280 (5%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

Radeon HD 6870

Amazon.com

Other US-based stores

Radeon HD 7850

Amazon.com

Other US-based stores

Specifications

Model Radeon HD 6870 Radeon HD 7850
Manufacturer ATi ATi
Year October 2010 March 2012
Code Name Barts XT Pitcairn Pro
Fab Process 40 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 1024 MB 2048 MB
Core Speed 900 MHz 860 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 1050 MHz (4200 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 1120 1024
Texture Mapping Units 56 64
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2
Power (Max TDP) 151 watts 130 watts
Shader Model 5.0 5.0
Bandwidth 134400 MB/sec 153600 MB/sec
Texel Rate 50400 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 28800 Mpixels/sec 27520 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Comments

2 Responses to “Radeon HD 6870 vs Radeon HD 7850”
[...] scheinen sich - zumindest theoretisch - nun auch nicht sooo viel zu geben/nehmen (je nachdem): Radeon HD 6870 vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare __________________ "Alle Menschen haben Recht, ZUMINDEST GLAUBEN SIE DAS!" (Albert [...]
[...] budget is around 400. If not, i don't take the 7000series card and take the 6000series. Radeon HD 6870 vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare in that website, the different around less than 15%. but the price is differ 100+ So what do [...]

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>

Spam Protection by WP-SpamFree