Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GTX 650 vs Radeon HD 6770 1GB

Intro

The GeForce GTX 650 has core clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Compare all that to the Radeon HD 6770 1GB, which features a GPU core clock speed of 900 MHz, and 1024 MB of GDDR5 RAM set to run at 1050 MHz through a 128-bit bus. It also is comprised of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 44 Watts (69%)

Memory Bandwidth

In theory, the GeForce GTX 650 will be 19% quicker than the Radeon HD 6770 1GB in general, due to its higher bandwidth. (explain)

GeForce GTX 650 80000 MB/sec
Radeon HD 6770 1GB 67200 MB/sec
Difference: 12800 (19%)

Texel Rate

The Radeon HD 6770 1GB is a small bit (approximately 6%) faster with regards to AF than the GeForce GTX 650. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 2144 (6%)

Pixel Rate

The GeForce GTX 650 is a small bit (about 18%) faster with regards to AA than the Radeon HD 6770 1GB, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon HD 6770 1GB 14400 Mpixels/sec
Difference: 2528 (18%)

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

Display Prices

Hide Prices

GeForce GTX 650

Amazon.com

Radeon HD 6770 1GB

Amazon.com

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

Display Specifications

Hide Specifications

Model GeForce GTX 650 Radeon HD 6770 1GB
Manufacturer nVidia AMD
Year September 2012 January 2011
Code Name GK107 Juniper XT
Memory 1024 MB 1024 MB
Core Speed 1058 MHz 900 MHz
Memory Speed 5000 MHz 4200 MHz
Power (Max TDP) 64 watts 108 watts
Bandwidth 80000 MB/sec 67200 MB/sec
Texel Rate 33856 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 384 800
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors 1300 million 1040 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *

*


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

WordPress Anti-Spam by WP-SpamShield


[X]
[X]