Radeon HD 6450 GDDR5 vs GeForce GTX 780 Rev. 2

Place in performance ranking	399	1079
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.61	0.01
Architecture	Kepler (2012−2018)	Terascale 2 (2009−2015)
GPU code name	GK110B	Caicos
Market segment	Desktop	Desktop
Release date	10 September 2013 (10 years ago)	18 April 2011 (13 years ago)
Launch price (MSRP)	$649	no data
Current price	$270 (0.4x MSRP)	$129

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GTX 780 Rev. 2 has 16000% better value for money than HD 6450 GDDR5.

Detailed specifications

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	2304	160
Core clock speed	863 MHz	750 MHz
Boost clock speed	902 MHz	no data
Number of transistors	7,080 million	no data
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	250 Watt	27 Watt
Texture fill rate	173.2	no data
Floating-point performance	4,156 gflops	no data

Form factor & 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).

Interface	PCIe 3.0 x16	no data
Length	267 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin + 1x 8-pin	no data

VRAM capacity and type

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	GDDR5
Maximum RAM amount	3 GB	1 GB
Memory bus width	384 Bit	64 Bit
Memory clock speed	6008 MHz	900 MHz
Memory bandwidth	288.4 GB/s	no data
Shared memory	no data	-

Connectivity and outputs

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	2x DVI, 1x HDMI, 1x DisplayPort	no data
HDMI	+	no data

API compatibility

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

DirectX	12 (11_1)	11
Shader Model	5.1	no data
OpenGL	4.6	no data
OpenCL	1.2	no data
Vulkan	1.1.126	no data
CUDA	3.5	no data

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

900p	75−80 +971%	7 −971%
Full HD	160−170 +967%	15 −967%
1200p	50−55 +900%	5 −900%

Pros & cons summary

Performance score	10.62	0.97
Recency	10 September 2013	18 April 2011
Maximum RAM amount	3 GB	1 GB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	250 Watt	27 Watt