Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 3870 X2 1GB vs Radeon HD 5830

Intro

The Radeon HD 3870 X2 1GB features core clock speeds of 825 MHz on the GPU, and 1126 MHz on the 1024 MB of GDDR4 memory. It features 320(64x5) SPUs as well as 16 Texture Address Units and 16 ROPs.

Compare those specifications to the Radeon HD 5830, which features a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It features 1120(224x5) SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 3870 X2 1GB should in theory be a small bit better than the Radeon HD 5830 overall. (explain)

Radeon HD 3870 X2 1GB 144128 MB/sec
Radeon HD 5830 128000 MB/sec
Difference: 16128 (13%)

Texel Rate

The Radeon HD 5830 will be quite a bit (approximately 70%) faster with regards to AF than the Radeon HD 3870 X2 1GB. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 3870 X2 1GB 26400 Mtexels/sec
Difference: 18400 (70%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 3870 X2 1GB is the winner, and very much so. (explain)

Radeon HD 3870 X2 1GB 26400 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 13600 (106%)

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 3870 X2 1GB

Amazon.com

Check prices at:

Radeon HD 5830

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 3870 X2 1GB Radeon HD 5830
Manufacturer AMD AMD
Year Jan 28, 2008 February 25, 2010
Code Name R680 Cypress LE
Memory 1024 MB (x2) 1024 MB
Core Speed 825 MHz (x2) 800 MHz
Memory Speed 2252 MHz (x2) 4000 MHz
Power (Max TDP) (Unknown) watts 175 watts
Bandwidth 144128 MB/sec 128000 MB/sec
Texel Rate 26400 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 26400 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 320(64x5) (x2) 1120(224x5)
Texture Mapping Units 16 (x2) 56
Render Output Units 16 (x2) 16
Bus Type GDDR4 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 2154 million
Bus PCIe 2.0 x16/(internal PCIe 1.1 x16) 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 largest amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 can be applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 3870 X2 1GB

Amazon.com

Check prices at:

Radeon HD 5830

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