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GeForce 9800 GT 1GB vs Radeon HD 7850

Intro

The GeForce 9800 GT 1GB comes with clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 112 SPUs along with 56 TAUs and 16 ROPs.

Compare all of that to the Radeon HD 7850, which features core clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB 105 Watts
Radeon HD 7850 130 Watts
Difference: 25 Watts (24%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7850 is 167% faster than the GeForce 9800 GT 1GB in general, because of its higher data rate. (explain)

Radeon HD 7850 153600 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 96000 (167%)

Texel Rate

The Radeon HD 7850 will be quite a bit (about 64%) better at anisotropic filtering than the GeForce 9800 GT 1GB. (explain)

Radeon HD 7850 55040 Mtexels/sec
GeForce 9800 GT 1GB 33600 Mtexels/sec
Difference: 21440 (64%)

Pixel Rate

The Radeon HD 7850 should be quite a bit (approximately 187%) faster with regards to anti-aliasing than the GeForce 9800 GT 1GB, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7850 27520 Mpixels/sec
GeForce 9800 GT 1GB 9600 Mpixels/sec
Difference: 17920 (187%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 9800 GT 1GB

Amazon.com

Other US-based stores

Radeon HD 7850

Amazon.com

Other US-based stores

Specifications

Model GeForce 9800 GT 1GB Radeon HD 7850
Manufacturer nVidia ATi
Year July 2008 March 2012
Code Name G92a/b Pitcairn Pro
Fab Process 65/55 nm 28 nm
Bus PCIe x16 2.0 PCIe 3.0 x16
Memory 1024 MB 2048 MB
Core Speed 600 MHz 860 MHz
Shader Speed 1500 MHz (N/A) MHz
Memory Speed 900 MHz (1800 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 112 1024
Texture Mapping Units 56 64
Render Output Units 16 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.0 OpenGL 4.2
Power (Max TDP) 105 watts 130 watts
Shader Model 4.0 5.0
Bandwidth 57600 MB/sec 153600 MB/sec
Texel Rate 33600 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 27520 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

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