Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GT 420 vs Radeon R7 240

Intro

The GeForce GT 420 makes use of a 40 nm design. nVidia has clocked the core speed at 700 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this particular card. It features 48 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Compare all of that to the Radeon R7 240, which uses a 28 nm design. AMD has set the core speed at 730 MHz. The DDR3 RAM runs at a speed of 900 MHz on this model. It features 320 SPUs as well as 20 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240 30 Watts
GeForce GT 420 50 Watts
Difference: 20 Watts (67%)

Memory Bandwidth

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

Texel Rate

The Radeon R7 240 is much (more or less 161%) more effective at AF than the GeForce GT 420. (explain)

Radeon R7 240 14600 Mtexels/sec
GeForce GT 420 5600 Mtexels/sec
Difference: 9000 (161%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 240 is superior to the GeForce GT 420, and very much so. (explain)

Radeon R7 240 5840 Mpixels/sec
GeForce GT 420 2800 Mpixels/sec
Difference: 3040 (109%)

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 420

Amazon.com

Check prices at:

Radeon R7 240

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 420 Radeon R7 240
Manufacturer nVidia AMD
Year September 2010 October 2013
Code Name GF108 Oland PRO
Memory 2048 MB 2048 MB
Core Speed 700 MHz 730 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 50 watts 30 watts
Bandwidth 28800 MB/sec 28800 MB/sec
Texel Rate 5600 Mtexels/sec 14600 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 5840 Mpixels/sec
Unified Shaders 48 320
Texture Mapping Units 8 20
Render Output Units 4 8
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 585 million 1040 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 420

Amazon.com

Check prices at:

Radeon R7 240

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