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Radeon HD 4670 1GB vs Radeon R7 240

Intro

The Radeon HD 4670 1GB comes with core speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Compare that to the Radeon R7 240, which has a clock frequency of 730 MHz and a DDR3 memory frequency of 900 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is comprised of 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

The Radeon HD 4670 1GB should in theory be quite a bit faster than the Radeon R7 240 in general. (explain)

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

Texel Rate

The Radeon HD 4670 1GB should be a lot (more or less 64%) more effective 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

The Radeon HD 4670 1GB should be a bit (approximately 3%) faster with regards to anti-aliasing than the Radeon R7 240, and also should be capable of handling higher resolutions more effectively. (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

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 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: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better 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 chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max 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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