Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon HD 3650 256MB vs Radeon HD 3690/3830

Intro

The Radeon HD 3650 256MB makes use of a 55 nm design. AMD has set the core speed at 725 MHz. The DDR2 RAM works at a speed of 800 MHz on this model. It features 120(24x5) SPUs along with 8 TAUs and 4 ROPs.

Compare those specifications to the Radeon HD 3690/3830, which features a core clock frequency of 668 MHz and a GDDR3 memory speed of 828 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 16 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3690/3830 75 Watts
Radeon HD 3650 256MB 78 Watts
Difference: 3 Watts (4%)

Memory Bandwidth

In theory, the Radeon HD 3690/3830 is 4% faster than the Radeon HD 3650 256MB overall, due to its higher bandwidth. (explain)

Radeon HD 3690/3830 26496 MB/sec
Radeon HD 3650 256MB 25600 MB/sec
Difference: 896 (4%)

Texel Rate

The Radeon HD 3690/3830 should be quite a bit (more or less 84%) more effective at anisotropic filtering than the Radeon HD 3650 256MB. (explain)

Radeon HD 3690/3830 10688 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 4888 (84%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 3690/3830 is superior to the Radeon HD 3650 256MB, and very much so. (explain)

Radeon HD 3690/3830 10688 Mpixels/sec
Radeon HD 3650 256MB 2900 Mpixels/sec
Difference: 7788 (269%)

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 3650 256MB

Amazon.com

Check prices at:

Radeon HD 3690/3830

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 3650 256MB Radeon HD 3690/3830
Manufacturer AMD AMD
Year 2008 2008
Code Name RV635 PRO RV670 PRO
Memory 256 MB 256 MB
Core Speed 725 MHz 668 MHz
Memory Speed 1600 MHz 1656 MHz
Power (Max TDP) 78 watts 75 watts
Bandwidth 25600 MB/sec 26496 MB/sec
Texel Rate 5800 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 2900 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 120(24x5) 320(64x5)
Texture Mapping Units 8 16
Render Output Units 4 16
Bus Type DDR2 GDDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 55 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 2.0 x16/AGP 8x PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

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's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 3650 256MB

Amazon.com

Check prices at:

Radeon HD 3690/3830

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