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Radeon HD 6770 vs Radeon R7 240

Intro

The Radeon HD 6770 has core speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 RAM. It features 800 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

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 Texture Address Units and 8 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6770 1520 points
Radeon R7 240 1218 points
Difference: 302 (25%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240 30 Watts
Radeon HD 6770 108 Watts
Difference: 78 Watts (260%)

Memory Bandwidth

The Radeon HD 6770 should in theory perform a lot faster than the Radeon R7 240 overall. (explain)

Radeon HD 6770 67200 MB/sec
Radeon R7 240 28800 MB/sec
Difference: 38400 (133%)

Texel Rate

The Radeon HD 6770 will be much (about 147%) more effective at anisotropic filtering than the Radeon R7 240. (explain)

Radeon HD 6770 36000 Mtexels/sec
Radeon R7 240 14600 Mtexels/sec
Difference: 21400 (147%)

Pixel Rate

The Radeon HD 6770 will be much (more or less 147%) more effective at AA than the Radeon R7 240, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 6770 14400 Mpixels/sec
Radeon R7 240 5840 Mpixels/sec
Difference: 8560 (147%)

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 6770

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 6770 Radeon R7 240
Manufacturer AMD AMD
Year January 2011 October 2013
Code Name Juniper XT Oland PRO
Memory 512 MB 2048 MB
Core Speed 900 MHz 730 MHz
Memory Speed 4200 MHz 1800 MHz
Power (Max TDP) 108 watts 30 watts
Bandwidth 67200 MB/sec 28800 MB/sec
Texel Rate 36000 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 14400 Mpixels/sec 5840 Mpixels/sec
Unified Shaders 800 320
Texture Mapping Units 40 20
Render Output Units 16 8
Bus Type GDDR5 DDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 1040 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the 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 processed per second. This number is calculated by multiplying the total amount 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6770

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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