GeForce 6800 GS vs Radeon HD 6450

General info

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking	1186	not rated
Place by popularity	not in top-100	not in top-100
Architecture	TeraScale 2 (2009−2015)	Curie (2003−2013)
GPU code name	Caicos	NV41
Market segment	Desktop	Desktop
Design	reference	no data
Release date	7 April 2011 (13 years ago)	7 November 2005 (18 years ago)
Launch price (MSRP)	$55	$249
Current price	$166 (3x MSRP)	$181 (0.7x MSRP)

Value for money

Performance to price ratio. The higher, the better.

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	160	no data
Core clock speed	no data	425 MHz
Boost clock speed	750 MHz	no data
Number of transistors	370 million	222 million
Manufacturing process technology	40 nm	130 nm
Power consumption (TDP)	30 Watt	no data
Texture fill rate	5.000	5.100
Floating-point performance	200.0 gflops	no data

Size and compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus support	PCIe 2.0 x8	no data
Interface	PCIe 2.0 x16	PCIe 1.0 x16
Length	168 mm	no data
Width	1-slot	1-slot
Supplementary power connectors	None	1x 6-pin

Memory

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR3
Maximum RAM amount	1 GB	256 MB
Memory bus width	64 Bit	256 Bit
Memory clock speed	800 MHz	1000 MHz
Memory bandwidth	25.6 GB/s	32 GB/s
Memory bandwidth	8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)	no data

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	1x DVI, 1x HDMI, 1x VGA	1x DVI, 1x VGA, 1x S-Video
Eyefinity	1	no data
Number of Eyefinity displays	4	no data
HDMI	+	no data
DisplayPort support	+	no data

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAcceleration	-	no data
CrossFire	1	no data
Enduro	-	no data
HD3D	-	no data
PowerTune	-	no data
TrueAudio	-	no data
ZeroCore	-	no data

API support

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	DirectX® 11	9.0c (9_3)
Shader Model	5.0	3.0
OpenGL	4.4	2.1
OpenCL	1.2	N/A
Vulkan	no data	N/A
Mantle	-	no data

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

---

Advantages and disadvantages

---

Recency	7 April 2011	7 November 2005
Cost	$55	$249
Maximum RAM amount	1 GB	256 MB
Chip lithography	40 nm	130 nm

---

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

---