AMD Radeon RX 640 vs NVIDIA GeForce 6800 GT

Comparative analysis of AMD Radeon RX 640 and NVIDIA GeForce 6800 GT 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: GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), Geekbench - OpenCL, PassMark - G2D Mark, PassMark - G3D Mark.

AMD Radeon RX 640

NVIDIA GeForce 6800 GT

Differences

Reasons to consider the AMD Radeon RX 640

Videocard is newer: launch date 15 year(s) 0 month(s) later
3.1x more core clock speed: 1082 MHz vs 350 MHz
6960.7x more texture fill rate: 38.98 GTexel/s vs 5.6 GTexel / s
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 130 nm
Around 34% lower typical power consumption: 50 Watt vs 67 Watt
8x more maximum memory size: 2 GB vs 256 MB
2.5x more memory clock speed: 1750 MHz (7000 MHz effective) vs 700 MHz
Around 61% better performance in PassMark - G2D Mark: 342 vs 212
14.2x better performance in PassMark - G3D Mark: 2017 vs 142

Specifications (specs)
Launch date	13 May 2019 vs 14 April 2004
Core clock speed	1082 MHz vs 350 MHz
Texture fill rate	38.98 GTexel/s vs 5.6 GTexel / s
Manufacturing process technology	14 nm vs 130 nm
Thermal Design Power (TDP)	50 Watt vs 67 Watt
Maximum memory size	2 GB vs 256 MB
Memory clock speed	1750 MHz (7000 MHz effective) vs 700 MHz
Benchmarks
PassMark - G2D Mark	342 vs 212
PassMark - G3D Mark	2017 vs 142

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: NVIDIA GeForce 6800 GT

PassMark - G2D Mark

GPU 1

GPU 2

342

212

PassMark - G3D Mark

GPU 1

GPU 2

2017

142

Name	AMD Radeon RX 640	NVIDIA GeForce 6800 GT
GFXBench 4.0 - Manhattan (Frames)	1769
GFXBench 4.0 - Manhattan (Fps)	1769
GFXBench 4.0 - T-Rex (Frames)	2775
GFXBench 4.0 - T-Rex (Fps)	2775
GFXBench 4.0 - Car Chase Offscreen (Frames)	3278
GFXBench 4.0 - Car Chase Offscreen (Fps)	3278
Geekbench - OpenCL	11376
PassMark - G2D Mark	342	212
PassMark - G3D Mark	2017	142

Compare specifications (specs)

	AMD Radeon RX 640	NVIDIA GeForce 6800 GT
Essentials
Architecture	GCN 4.0	Curie
Code name	Arctic Islands	NV40 A1
Launch date	13 May 2019	14 April 2004
Place in performance rating	808	807
Type		Desktop
Technical info
Boost clock speed	1218 MHz
Compute units	8
Core clock speed	1082 MHz	350 MHz
Manufacturing process technology	14 nm	130 nm
Peak Double Precision (FP64) Performance	77.95 GFLOPS
Peak Half Precision (FP16) Performance	1247 GFLOPS
Peak Single Precision (FP32) Performance	1247 GFLOPS
Pipelines	512
Pixel fill rate	19.49 GPixel/s
Texture fill rate	38.98 GTexel/s	5.6 GTexel / s
Thermal Design Power (TDP)	50 Watt	67 Watt
Transistor count	2200 million	222 million
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x VGA, 1x S-Video
DisplayPort support
HDMI
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	AGP 8x
Length	5.7 inches (145 mm)
Recommended system power (PSU)	350 Watt
Supplementary power connectors	None	1x Molex
Width	Dual-slot
API support
DirectX	12	9.0c
OpenCL	2.0
OpenGL	4.6	2.1
Shader Model	6.4
Vulkan
Memory
Maximum RAM amount	2 GB	256 MB
Memory bandwidth	112.0 GB/s	32.0 GB / s
Memory bus width	128 bit	256 Bit
Memory clock speed	1750 MHz (7000 MHz effective)	700 MHz
Memory type	GDDR5	GDDR3
Technologies
Unified Video Decoder (UVD)
Video Code Engine (VCE)