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Radeon HD 3470 256MB vs Radeon R7 240

Intro

The Radeon HD 3470 256MB comes with clock speeds of 800 MHz on the GPU, and 950 MHz on the 256 MB of DDR2 memory. It features 40(8x5) SPUs along with 4 Texture Address Units and 4 ROPs.

Compare those specs to the Radeon R7 240, which has core speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 3470 256MB should in theory be a bit better than the Radeon R7 240 in general. (explain)

Radeon HD 3470 256MB 30400 MB/sec
Radeon R7 240 28800 MB/sec
Difference: 1600 (6%)

Texel Rate

The Radeon R7 240 is a lot (more or less 356%) more effective at texture filtering than the Radeon HD 3470 256MB. (explain)

Radeon R7 240 14600 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 11400 (356%)

Pixel Rate

The Radeon R7 240 will be much (approximately 83%) more effective at AA than the Radeon HD 3470 256MB, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon R7 240 5840 Mpixels/sec
Radeon HD 3470 256MB 3200 Mpixels/sec
Difference: 2640 (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 3470 256MB

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 3470 256MB Radeon R7 240
Manufacturer AMD AMD
Year 2008 October 2013
Code Name RV620 PRO Oland PRO
Memory 256 MB 2048 MB
Core Speed 800 MHz 730 MHz
Memory Speed 1900 MHz 1800 MHz
Power (Max TDP) (Unknown) watts 30 watts
Bandwidth 30400 MB/sec 28800 MB/sec
Texel Rate 3200 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 3200 Mpixels/sec 5840 Mpixels/sec
Unified Shaders 40(8x5) 320
Texture Mapping Units 4 20
Render Output Units 4 8
Bus Type DDR2 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 max amount of data (counted in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 3470 256MB

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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