AMD Radeon HD 6990 vs NVIDIA GeForce 8800 Ultra

Comparative analysis of AMD Radeon HD 6990 and NVIDIA GeForce 8800 Ultra videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.

AMD Radeon HD 6990

NVIDIA GeForce 8800 Ultra

Differences

Reasons to consider the AMD Radeon HD 6990

Videocard is newer: launch date 3 year(s) 10 month(s) later
Around 36% higher core clock speed: 830 MHz vs 612 MHz
7.1x more texture fill rate: 2x 79.7 GTexel / s billion / sec vs 39.2 billion / sec
24x more pipelines: 2x 1536 vs 128
13.2x better floating-point performance: 2x 2,549.8 gflops vs 387.1 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 40 nm vs 90 nm
8x more maximum memory size: 2x 2 GB vs 512 MB
4.6x more memory clock speed: 5000 MHz vs 1080 MHz
4.7x better performance in PassMark - G3D Mark: 3013 vs 643
2.5x better performance in PassMark - G2D Mark: 630 vs 252

Specifications (specs)
Launch date	8 March 2011 vs 2 May 2007
Core clock speed	830 MHz vs 612 MHz
Texture fill rate	2x 79.7 GTexel / s billion / sec vs 39.2 billion / sec
Pipelines	2x 1536 vs 128
Floating-point performance	2x 2,549.8 gflops vs 387.1 gflops
Manufacturing process technology	40 nm vs 90 nm
Maximum memory size	2x 2 GB vs 512 MB
Memory clock speed	5000 MHz vs 1080 MHz
Benchmarks
PassMark - G3D Mark	3013 vs 643
PassMark - G2D Mark	630 vs 252

Reasons to consider the NVIDIA GeForce 8800 Ultra

2.2x lower typical power consumption: 171 Watt vs 375 Watt

Thermal Design Power (TDP)	171 Watt vs 375 Watt

Compare benchmarks

GPU 1: AMD Radeon HD 6990
GPU 2: NVIDIA GeForce 8800 Ultra

PassMark - G3D Mark

GPU 1

GPU 2

3013

643

PassMark - G2D Mark

GPU 1

GPU 2

630

252

Name	AMD Radeon HD 6990	NVIDIA GeForce 8800 Ultra
PassMark - G3D Mark	3013	643
PassMark - G2D Mark	630	252
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	17.264
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	840.452
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.76
CompuBench 1.5 Desktop - Video Composition (Frames/s)	53.903
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	265.302
GFXBench 4.0 - Car Chase Offscreen (Frames)	4562
GFXBench 4.0 - Manhattan (Frames)	3713
GFXBench 4.0 - T-Rex (Frames)	3356
GFXBench 4.0 - Car Chase Offscreen (Fps)	4562
GFXBench 4.0 - Manhattan (Fps)	3713
GFXBench 4.0 - T-Rex (Fps)	3356
3DMark Fire Strike - Graphics Score	0

Compare specifications (specs)

	AMD Radeon HD 6990	NVIDIA GeForce 8800 Ultra
Essentials
Architecture	TeraScale 3	Tesla
Code name	Antilles	G80
Launch date	8 March 2011	2 May 2007
Launch price (MSRP)	$699	$829
Place in performance rating	626	615
Price now	$159.99
Type	Desktop	Desktop
Value for money (0-100)	27.81
Technical info
Core clock speed	830 MHz	612 MHz
Floating-point performance	2x 2,549.8 gflops	387.1 gflops
Manufacturing process technology	40 nm	90 nm
Pipelines	2x 1536	128
Texture fill rate	2x 79.7 GTexel / s billion / sec	39.2 billion / sec
Thermal Design Power (TDP)	375 Watt	171 Watt
Transistor count	2,640 million	681 million
CUDA cores		612
Video outputs and ports
Display Connectors	1x DVI, 4x mini-DisplayPort	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 1.0 x16
Length	295 mm	270 mm
Supplementary power connectors	2x 8-pin	2x 6-pin
API support
DirectX	11.2 (11_0)	10.0
OpenGL	4.4	3.3
Memory
Maximum RAM amount	2x 2 GB	512 MB
Memory bandwidth	2x 160.0 GB / s	103.7 GB / s
Memory bus width	2x 256 Bit	384 Bit
Memory clock speed	5000 MHz	1080 MHz
Memory type	GDDR5	GDDR3
Technologies
SLI