Compare any two graphics cards:
VS

GeForce GTX 650 Ti 2GB vs Radeon HD 7950

Intro

The GeForce GTX 650 Ti 2GB comes with a GPU clock speed of 928 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1350 MHz through a 128-bit bus. It also is made up of 768 Stream Processors, 64 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon HD 7950, which has GPU clock speed of 800 MHz, and 1536 MB of GDDR5 RAM running at 1250 MHz through a 384-bit bus. It also is made up of 1792 Stream Processors, 112 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
Radeon HD 7950 200 Watts
Difference: 90 Watts (82%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7950 should theoretically be a lot superior to the GeForce GTX 650 Ti 2GB overall. (explain)

Radeon HD 7950 240000 MB/sec
GeForce GTX 650 Ti 2GB 86400 MB/sec
Difference: 153600 (178%)

Texel Rate

The Radeon HD 7950 is much (about 51%) more effective at AF than the GeForce GTX 650 Ti 2GB. (explain)

Radeon HD 7950 89600 Mtexels/sec
GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
Difference: 30208 (51%)

Pixel Rate

The Radeon HD 7950 should be much (about 72%) better at anti-aliasing than the GeForce GTX 650 Ti 2GB, and also will be able to handle higher resolutions more effectively. (explain)

Radeon HD 7950 25600 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 10752 (72%)

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 Ti 2GB

Amazon.com

Check prices at:

Radeon HD 7950

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

Display Specifications

Hide Specifications

Model GeForce GTX 650 Ti 2GB Radeon HD 7950
Manufacturer nVidia AMD
Year October 2012 January 2012
Code Name GK106 Tahiti Pro
Memory 2048 MB 1536 MB
Core Speed 928 MHz 800 MHz
Memory Speed 5400 MHz 5000 MHz
Power (Max TDP) 110 watts 200 watts
Bandwidth 86400 MB/sec 240000 MB/sec
Texel Rate 59392 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 768 1792
Texture Mapping Units 64 112
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.2

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better 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 chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 650 Ti 2GB

Amazon.com

Check prices at:

Radeon HD 7950

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.

Comments

Be the first to leave a comment!

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


*

WordPress Anti Spam by WP-SpamShield