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GeForce GT 240 GDDR5 vs Radeon HD 6770 1GB

Intro

The GeForce GT 240 GDDR5 features core speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 memory. It features 96 SPUs as well as 32 TAUs and 8 ROPs.

Compare those specifications to the Radeon HD 6770 1GB, which features GPU core speed of 900 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also features 800 Stream Processors, 40 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 38 Watts (54%)

Memory Bandwidth

In theory, the Radeon HD 6770 1GB should be 24% faster than the GeForce GT 240 GDDR5 overall, because of its greater bandwidth. (explain)

Radeon HD 6770 1GB 67200 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 12800 (24%)

Texel Rate

The Radeon HD 6770 1GB will be a lot (approximately 105%) better at AF than the GeForce GT 240 GDDR5. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 18400 (105%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6770 1GB is superior to the GeForce GT 240 GDDR5, and very much so. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 10000 (227%)

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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GeForce GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 6770 1GB

Amazon.com

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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 GeForce GT 240 GDDR5 Radeon HD 6770 1GB
Manufacturer nVidia AMD
Year Novermber 2009 January 2011
Code Name GT215 Juniper XT
Memory 512 MB 1024 MB
Core Speed 550 MHz 900 MHz
Memory Speed 3400 MHz 4200 MHz
Power (Max TDP) 70 watts 108 watts
Bandwidth 54400 MB/sec 67200 MB/sec
Texel Rate 17600 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 96 800
Texture Mapping Units 32 40
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 289 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported across 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 should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 6770 1GB

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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