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GeForce GTS 450 vs Radeon HD 6770

Intro

The GeForce GTS 450 features core clock speeds of 783 MHz on the GPU, and 902 MHz on the 512 MB of GDDR5 memory. It features 192 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 6770, which features GPU clock speed of 900 MHz, and 512 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also is comprised of 800 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 106 Watts
Radeon HD 6770 108 Watts
Difference: 2 Watts (2%)

Memory Bandwidth

Performance-wise, the Radeon HD 6770 should theoretically be just a bit superior to the GeForce GTS 450 in general. (explain)

Radeon HD 6770 67200 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 9472 (16%)

Texel Rate

The Radeon HD 6770 should be much (approximately 44%) better at AF than the GeForce GTS 450. (explain)

Radeon HD 6770 36000 Mtexels/sec
GeForce GTS 450 25056 Mtexels/sec
Difference: 10944 (44%)

Pixel Rate

The Radeon HD 6770 is a bit (more or less 15%) more effective at anti-aliasing than the GeForce GTS 450, and should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6770 14400 Mpixels/sec
GeForce GTS 450 12528 Mpixels/sec
Difference: 1872 (15%)

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

GeForce GTS 450

Radeon HD 6770

Specifications

Display Specifications

Hide Specifications

Model GeForce GTS 450 Radeon HD 6770
Manufacturer nVidia AMD
Year September 2010 January 2011
Code Name GF106 Juniper XT
Memory 512 MB 512 MB
Core Speed 783 MHz 900 MHz
Memory Speed 3608 MHz 4200 MHz
Power (Max TDP) 106 watts 108 watts
Bandwidth 57728 MB/sec 67200 MB/sec
Texel Rate 25056 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 192 800
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

GeForce GTS 450

Radeon HD 6770

Comments

3 Responses to “GeForce GTS 450 vs Radeon HD 6770”
pc gaming 1300lei - Page 3 - My Garage says:

[...] ok.. tine un q6600 si 9800 Gt. Hd 6770 comparat cu gts 450 (512 mb dar e valabil si pt 1gb). http://www.hwcompare.com/7617/geforc...adeon-hd-6770/ Carcasa o avea tabla subtire dar e bine ventilata si [...]

achizitionare placa video! - My Garage says:

[...] Daca as fi in situatia ta, as schimba sursa mai intai, macar cu aceasta. Apoi m-as gandi sa achizitionez placa video. [...]

Placa video recomandare + (probabil sursa) says:

[...] Multumesc. GeForce GTS 450 vs Radeon HD 6770 – Performance Comparison Benchmarks @ Hardware Compare dar aici vad ca 6770-ul e putin mai bun decat GTS450. M-ar interesa si ceva SH, dar sunt foarte [...]

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