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Radeon HD 3470 256MB vs Radeon HD 6450 (OEM)

Intro

The Radeon HD 3470 256MB makes use of a 55 nm design. AMD has set the core frequency at 800 MHz. The DDR2 memory runs at a frequency of 950 MHz on this particular card. It features 40(8x5) SPUs along with 4 TAUs and 4 Rasterization Operator Units.

Compare those specs to the Radeon HD 6450 (OEM), which comes with a core clock speed of 625 MHz and a GDDR3 memory speed of 800 MHz. It also features a 64-bit bus, and makes use of a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 3470 256MB should theoretically be quite a bit better than the Radeon HD 6450 (OEM) overall. (explain)

Radeon HD 3470 256MB 30400 MB/sec
Radeon HD 6450 (OEM) 12800 MB/sec
Difference: 17600 (138%)

Texel Rate

The Radeon HD 6450 (OEM) is a lot (more or less 56%) more effective at AF than the Radeon HD 3470 256MB. (explain)

Radeon HD 6450 (OEM) 5000 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 1800 (56%)

Pixel Rate

The Radeon HD 3470 256MB will be quite a bit (approximately 28%) faster with regards to full screen anti-aliasing than the Radeon HD 6450 (OEM), and also will be able to handle higher resolutions more effectively. (explain)

Radeon HD 3470 256MB 3200 Mpixels/sec
Radeon HD 6450 (OEM) 2500 Mpixels/sec
Difference: 700 (28%)

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 HD 6450 (OEM)

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 HD 6450 (OEM)
Manufacturer AMD AMD
Year 2008 February 2011
Code Name RV620 PRO Caicos
Memory 256 MB 512 MB
Core Speed 800 MHz 625 MHz
Memory Speed 1900 MHz 1600 MHz
Power (Max TDP) (Unknown) watts 31 watts
Bandwidth 30400 MB/sec 12800 MB/sec
Texel Rate 3200 Mtexels/sec 5000 Mtexels/sec
Pixel Rate 3200 Mpixels/sec 2500 Mpixels/sec
Unified Shaders 40(8x5) 160
Texture Mapping Units 4 8
Render Output Units 4 4
Bus Type DDR2 GDDR3
Bus Width 128-bit 64-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 370 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few 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 3470 256MB

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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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