Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 4850 X2 512MB vs Radeon HD 5850

Intro

The Radeon HD 4850 X2 512MB has a GPU core clock speed of 625 MHz, and the 512 MB of GDDR3 RAM runs at 993 MHz through a 256-bit bus. It also features 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Compare those specifications to the Radeon HD 5850, which uses a 40 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 memory works at a speed of 1000 MHz on this specific model. It features 1440(288x5) SPUs along with 72 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850 151 Watts
Radeon HD 4850 X2 512MB 250 Watts
Difference: 99 Watts (66%)

Memory Bandwidth

The Radeon HD 5850 should theoretically perform a small bit faster than the Radeon HD 4850 X2 512MB overall. (explain)

Radeon HD 5850 128000 MB/sec
Radeon HD 4850 X2 512MB 127104 MB/sec
Difference: 896 (1%)

Texel Rate

The Radeon HD 5850 will be a little bit (approximately 4%) more effective at texture filtering than the Radeon HD 4850 X2 512MB. (explain)

Radeon HD 5850 52200 Mtexels/sec
Radeon HD 4850 X2 512MB 50000 Mtexels/sec
Difference: 2200 (4%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5850 is a better choice, though only just barely. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon HD 4850 X2 512MB 20000 Mpixels/sec
Difference: 3200 (16%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Display Prices

Hide Prices

Radeon HD 4850 X2 512MB

Amazon.com

Check prices at:

Radeon HD 5850

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 4850 X2 512MB Radeon HD 5850
Manufacturer AMD AMD
Year Nov 7, 2008 September 30, 2009
Code Name R700 Cypress PRO
Memory 512 MB (x2) 1024 MB
Core Speed 625 MHz (x2) 725 MHz
Memory Speed 1986 MHz (x2) 4000 MHz
Power (Max TDP) 250 watts 151 watts
Bandwidth 127104 MB/sec 128000 MB/sec
Texel Rate 50000 Mtexels/sec 52200 Mtexels/sec
Pixel Rate 20000 Mpixels/sec 23200 Mpixels/sec
Unified Shaders 800(160x5) (x2) 1440(288x5)
Texture Mapping Units 40 (x2) 72
Render Output Units 16 (x2) 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 55 nm 40 nm
Transistors 956 million 2154 million
Bus PCIe 2.0 x16 (PCIe bridge) PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 4850 X2 512MB

Amazon.com

Check prices at:

Radeon HD 5850

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