Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GT 450 (OEM) vs Radeon HD 7790

Intro

The GeForce GT 450 (OEM) makes use of a 40 nm design. nVidia has set the core speed at 790 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this particular model. It features 144 SPUs along with 24 TAUs and 24 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7790, which comes with core speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 RAM. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 21 Watts (25%)

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The Radeon HD 7790 is a lot (more or less 195%) better at AF than the GeForce GT 450 (OEM). (explain)

Radeon HD 7790 56000 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 37040 (195%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 450 (OEM) is a better choice, but only just. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 2960 (19%)

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 GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 7790

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 GT 450 (OEM) Radeon HD 7790
Manufacturer nVidia AMD
Year October 2010 March 2013
Code Name GF106 Bonaire XT
Memory 1536 MB 1024 MB
Core Speed 790 MHz 1000 MHz
Memory Speed 4000 MHz 6000 MHz
Power (Max TDP) 106 watts 85 watts
Bandwidth 96000 MB/sec 96000 MB/sec
Texel Rate 18960 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 144 896
Texture Mapping Units 24 56
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1170 million 2080 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 are applied in one second. This number is worked out by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 7790

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