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Radeon HD 4670 1GB vs Radeon R7 M260

Intro

The Radeon HD 4670 1GB comes with a GPU core clock speed of 750 MHz, and the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 memory is set to run at 1100 MHz through a 128-bit bus. It also is comprised of 320(64x5) Stream Processors, 32 Texture Address Units, and 8 Raster Operation Units.

Compare that to the Radeon R7 M260, which has a GPU core clock speed of 715 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 64-bit bus. It also is comprised of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 4670 1GB will be 120% quicker than the Radeon R7 M260 in general, because of its greater bandwidth. (explain)

Radeon HD 4670 1GB 35200 MB/sec
Radeon R7 M260 16000 MB/sec
Difference: 19200 (120%)

Texel Rate

The Radeon HD 4670 1GB should be much (more or less 40%) better at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 4670 1GB 24000 Mtexels/sec
Radeon R7 M260 17160 Mtexels/sec
Difference: 6840 (40%)

Pixel Rate

The Radeon HD 4670 1GB is just a bit (about 5%) better at anti-aliasing than the Radeon R7 M260, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 4670 1GB 6000 Mpixels/sec
Radeon R7 M260 5720 Mpixels/sec
Difference: 280 (5%)

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 4670 1GB

Amazon.com

Check prices at:

Radeon R7 M260

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 4670 1GB Radeon R7 M260
Manufacturer AMD AMD
Year Sep 10, 2008 June 2014
Code Name RV730 XT Opal/Topaz
Memory 1024 MB 2048 MB
Core Speed 750 MHz 715 MHz
Memory Speed 2200 MHz 2000 MHz
Power (Max TDP) 70 watts (Unknown) watts
Bandwidth 35200 MB/sec 16000 MB/sec
Texel Rate 24000 Mtexels/sec 17160 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 5720 Mpixels/sec
Unified Shaders 320(64x5) 384
Texture Mapping Units 32 24
Render Output Units 8 8
Bus Type GDDR4/GDDR3/DDR3/DDR2 DDR3
Bus Width 128-bit 64-bit
Fab Process 55 nm 28 nm
Transistors 514 million (Unknown) million
Bus PCIe 2.0 x16, AGP 8x PCIe 3.0 x8
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 megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

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

Display Prices

Hide Prices

Radeon HD 4670 1GB

Amazon.com

Check prices at:

Radeon R7 M260

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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