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Radeon HD 6770 1GB vs Radeon HD 7750


The Radeon HD 6770 1GB has a GPU clock speed of 900 MHz, and the 1024 MB of GDDR5 RAM runs at 1050 MHz through a 128-bit bus. It also is comprised of 800 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon HD 7750, which comes with clock speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 53 Watts (96%)

Memory Bandwidth

In theory, the Radeon HD 7750 is 7% faster than the Radeon HD 6770 1GB overall, because of its higher bandwidth. (explain)

Radeon HD 7750 72000 MB/sec
Radeon HD 6770 1GB 67200 MB/sec
Difference: 4800 (7%)

Texel Rate

The Radeon HD 6770 1GB will be quite a bit (more or less 41%) more effective at AF than the Radeon HD 7750. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
Radeon HD 7750 25600 Mtexels/sec
Difference: 10400 (41%)

Pixel Rate

The Radeon HD 6770 1GB will be just a bit (approximately 13%) better at FSAA than the Radeon HD 7750, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
Radeon HD 7750 12800 Mpixels/sec
Difference: 1600 (13%)

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 1GB

Radeon HD 7750

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.


Display Specifications

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Model Radeon HD 6770 1GB Radeon HD 7750
Manufacturer AMD AMD
Year January 2011 February 2012
Code Name Juniper XT Cape Verde Pro
Memory 1024 MB 1024 MB
Core Speed 900 MHz 800 MHz
Memory Speed 4200 MHz 4500 MHz
Power (Max TDP) 108 watts 55 watts
Bandwidth 67200 MB/sec 72000 MB/sec
Texel Rate 36000 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 14400 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 800 512
Texture Mapping Units 40 32
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 1500 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high 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 number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at 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 that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.


5 Responses to “Radeon HD 6770 1GB vs Radeon HD 7750”
Gamer PC für D3 für möglichst wenig Geld :) - Seite 4 - Diablo 3 Forum | by ingame™ says:

[...] deutlich sparsamer. Man schaue sich mal die MAX TDP an (wobei die ja eh schon nie erreicht wird): Radeon HD 6770 1GB vs Radeon HD 7750 – Performance Comparison Benchmarks @ Hardware Compare Es geht hier darum, genau auf die Bedürfnisse einen PC zuzu schneiden. Größere Grafikkarten [...]

Wird Diablo 3 auf meinem PC FLÜSSIG spielbar sein? - Seite 22 - Diablo 3 Forum | by ingame™ says:

[...] von LongM Sicher dass die 265watt reichen? Für die graka? Radeon HD 6770 1GB vs Radeon HD 7750 – Performance Comparison Benchmarks @ Hardware Compare 55W max TDP, kein extra Stromanschluss am Netzteil... Was fürn i5 hast du und was für restliche [...]

placa video - My Garage says:

[...] este ca 7750 consuma mai putin si este mai rece,ca si performanta este putin mai buna 6770. Uite aici o comparatie. __________________ Conserva mea cu jucării YouTube Battlefield 3 Fragmovie [...]

Need help in choosing a graphics card - Digit Technology Discussion Forum says:

[...] Need help in choosing a graphics card 6770 vs 7750 a basic info.. Benchmarks just browse through all benchmarks.. with the fact in mind that 6770 is [...]

T. Video + Fuente para esta Config says:

[...] lei en este "review" consume menos que una equivalente en precio como la 6770. Fuente: Radeon HD 6770 1GB vs Radeon HD 7750 – Performance Comparison Benchmarks @ Hardware Compare Ahora, no se si tendre algun problema meterle una Nvidia si tengo proce amd, es una ignoracia de [...]

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