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Radeon HD 3690/3830 vs Radeon R7 240

Intro

The Radeon HD 3690/3830 features a GPU core clock speed of 668 MHz, and the 256 MB of GDDR3 RAM runs at 828 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 16 TAUs, and 16 Raster Operation Units.

Compare all that to the Radeon R7 240, which has a GPU core clock speed of 730 MHz, and 2048 MB of DDR3 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 320 Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240 30 Watts
Radeon HD 3690/3830 75 Watts
Difference: 45 Watts (150%)

Memory Bandwidth

As far as performance goes, the Radeon R7 240 should theoretically be a little bit superior to the Radeon HD 3690/3830 in general. (explain)

Radeon R7 240 28800 MB/sec
Radeon HD 3690/3830 26496 MB/sec
Difference: 2304 (9%)

Texel Rate

The Radeon R7 240 is a lot (about 37%) more effective at AF than the Radeon HD 3690/3830. (explain)

Radeon R7 240 14600 Mtexels/sec
Radeon HD 3690/3830 10688 Mtexels/sec
Difference: 3912 (37%)

Pixel Rate

The Radeon HD 3690/3830 is much (about 83%) faster with regards to FSAA than the Radeon R7 240, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 3690/3830 10688 Mpixels/sec
Radeon R7 240 5840 Mpixels/sec
Difference: 4848 (83%)

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

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Radeon HD 3690/3830

Amazon.com

Check prices at:

Radeon R7 240

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

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Model Radeon HD 3690/3830 Radeon R7 240
Manufacturer AMD AMD
Year 2008 October 2013
Code Name RV670 PRO Oland PRO
Memory 256 MB 2048 MB
Core Speed 668 MHz 730 MHz
Memory Speed 1656 MHz 1800 MHz
Power (Max TDP) 75 watts 30 watts
Bandwidth 26496 MB/sec 28800 MB/sec
Texel Rate 10688 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 10688 Mpixels/sec 5840 Mpixels/sec
Unified Shaders 320(64x5) 320
Texture Mapping Units 16 20
Render Output Units 16 8
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors (Unknown) million 1040 million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 3690/3830

Amazon.com

Check prices at:

Radeon R7 240

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.

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