Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce GT 240 GDDR5 vs Radeon HD 4830 1GB

Intro

The GeForce GT 240 GDDR5 has a GPU core clock speed of 550 MHz, and the 512 MB of GDDR5 RAM is set to run at 850 MHz through a 128-bit bus. It also is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.

Compare that to the Radeon HD 4830 1GB, which comes with GPU core speed of 575 MHz, and 1024 MB of GDDR4 RAM set to run at 900 MHz through a 256-bit bus. It also is comprised of 640(128x5) Stream Processors, 32 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
Radeon HD 4830 1GB 95 Watts
Difference: 25 Watts (36%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4830 1GB should be 6% quicker than the GeForce GT 240 GDDR5 in general, due to its greater bandwidth. (explain)

Radeon HD 4830 1GB 57600 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 3200 (6%)

Texel Rate

The Radeon HD 4830 1GB should be just a bit (approximately 5%) more effective at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 4830 1GB 18400 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 800 (5%)

Pixel Rate

The Radeon HD 4830 1GB will be quite a bit (about 109%) better at anti-aliasing than the GeForce GT 240 GDDR5, and also able to handle higher resolutions while still performing well. (explain)

Radeon HD 4830 1GB 9200 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 4800 (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 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 4830 1GB

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 240 GDDR5 Radeon HD 4830 1GB
Manufacturer nVidia AMD
Year Novermber 2009 Oct 21, 2008
Code Name GT215 RV770 LE
Memory 512 MB 1024 MB
Core Speed 550 MHz 575 MHz
Memory Speed 3400 MHz 1800 MHz
Power (Max TDP) 70 watts 95 watts
Bandwidth 54400 MB/sec 57600 MB/sec
Texel Rate 17600 Mtexels/sec 18400 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 96 640(128x5)
Texture Mapping Units 32 32
Render Output Units 8 16
Bus Type GDDR5 GDDR4
Bus Width 128-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 289 million 956 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.2 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 4830 1GB

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