Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Search:

Radeon HD 4850 512MB vs Radeon HD 6850

Intro

The Radeon HD 4850 512MB uses a 55 nm design. AMD has clocked the core speed at 625 MHz. The GDDR3 RAM works at a speed of 993 MHz on this specific model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Compare all that to the Radeon HD 6850, which makes use of a 40 nm design. AMD has set the core speed at 775 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this card. It features 960 SPUs along with 48 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 512MB 110 Watts
Radeon HD 6850 127 Watts
Difference: 17 Watts (15%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6850 will be 101% quicker than the Radeon HD 4850 512MB overall, due to its higher bandwidth. (explain)

Radeon HD 6850 128000 MB/sec
Radeon HD 4850 512MB 63552 MB/sec
Difference: 64448 (101%)

Texel Rate

The Radeon HD 6850 should be quite a bit (more or less 49%) faster with regards to texture filtering than the Radeon HD 4850 512MB. (explain)

Radeon HD 6850 37200 Mtexels/sec
Radeon HD 4850 512MB 25000 Mtexels/sec
Difference: 12200 (49%)

Pixel Rate

The Radeon HD 6850 is a lot (more or less 148%) more effective at anti-aliasing than the Radeon HD 4850 512MB, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon HD 4850 512MB 10000 Mpixels/sec
Difference: 14800 (148%)

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

Radeon HD 4850 512MB

Radeon HD 6850

Specifications

Display Specifications

Hide Specifications

Model Radeon HD 4850 512MB Radeon HD 6850
Manufacturer AMD AMD
Year Jun 25, 2008 October 2010
Code Name RV770 PRO Barts Pro
Memory 512 MB 1024 MB
Core Speed 625 MHz 775 MHz
Memory Speed 1986 MHz 4000 MHz
Power (Max TDP) 110 watts 127 watts
Bandwidth 63552 MB/sec 128000 MB/sec
Texel Rate 25000 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 10000 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 800(160x5) 960
Texture Mapping Units 40 48
Render Output Units 16 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 956 million 1700 million
Bus PCIe 2.0 x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 are applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Radeon HD 4850 512MB

Radeon HD 6850

Comments

Be the first to leave a comment!

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


[X]
[X]