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Radeon HD 4670 1GB vs Radeon R7 240

Intro

The Radeon HD 4670 1GB features core speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 memory. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 ROPs.

Compare all that to the Radeon R7 240, which comes with a clock speed of 730 MHz and a DDR3 memory frequency of 900 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 320 SPUs, 20 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240 30 Watts
Radeon HD 4670 1GB 70 Watts
Difference: 40 Watts (133%)

Memory Bandwidth

Theoretically, the Radeon HD 4670 1GB should be a lot faster than the Radeon R7 240 overall. (explain)

Radeon HD 4670 1GB 35200 MB/sec
Radeon R7 240 28800 MB/sec
Difference: 6400 (22%)

Texel Rate

The Radeon HD 4670 1GB is a lot (about 64%) better at anisotropic filtering than the Radeon R7 240. (explain)

Radeon HD 4670 1GB 24000 Mtexels/sec
Radeon R7 240 14600 Mtexels/sec
Difference: 9400 (64%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 4670 1GB is the winner, but only just. (explain)

Radeon HD 4670 1GB 6000 Mpixels/sec
Radeon R7 240 5840 Mpixels/sec
Difference: 160 (3%)

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

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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 4670 1GB Radeon R7 240
Manufacturer AMD AMD
Year Sep 10, 2008 October 2013
Code Name RV730 XT Oland PRO
Memory 1024 MB 2048 MB
Core Speed 750 MHz 730 MHz
Memory Speed 2200 MHz 1800 MHz
Power (Max TDP) 70 watts 30 watts
Bandwidth 35200 MB/sec 28800 MB/sec
Texel Rate 24000 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 6000 Mpixels/sec 5840 Mpixels/sec
Unified Shaders 320(64x5) 320
Texture Mapping Units 32 20
Render Output Units 8 8
Bus Type GDDR4/GDDR3/DDR3/DDR2 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 514 million 1040 million
Bus PCIe 2.0 x16, AGP 8x PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at 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 card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4670 1GB

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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