Radeon HD 6390 vs GeForce GTX 750

Primary details

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

Place in the ranking	493	not rated
Place by popularity	95	not in top-100
Cost-effectiveness evaluation	4.59	no data
Power efficiency	11.01	no data
Architecture	Maxwell (2014−2017)	TeraScale 2 (2009−2015)
GPU code name	GM107	Redwood
Market segment	Desktop	Desktop
Release date	18 February 2014 (10 years ago)	4 July 2011 (13 years ago)
Launch price (MSRP)	$119	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	512	320
Core clock speed	1020 MHz	550 MHz
Boost clock speed	1085 MHz	no data
Number of transistors	1,870 million	627 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	55 Watt	39 Watt
Maximum GPU temperature	95 °C	no data
Texture fill rate	34.72	8.800
Floating-point processing power	1.111 TFLOPS	0.352 TFLOPS
ROPs	16	8
TMUs	32	16

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).

Bus support	PCI Express 3.0	no data
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	145 mm	165 mm
Height	4.376" (11.1 cm)	no data
Width	1-slot	1-slot
Supplementary power connectors	None	None

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	DDR2
Maximum RAM amount	4 GB	1 GB
Memory bus width	128 Bit	128 Bit
Memory clock speed	5.0 GB/s	500 MHz
Memory bandwidth	80 GB/s	16 GB/s

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	One Dual Link DVI-I, One Dual Link DVI-D, One mini-HDMI	1x DVI, 1x HDMI, 1x VGA
Multi monitor support	3 displays	no data
HDMI	+	+
HDCP	+	-
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	Internal	no data

Supported technologies

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

Blu Ray 3D	+	-
3D Gaming	+	-
3D Vision	+	-
3D Vision Live	+	-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_0)	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.4	4.4
OpenCL	1.2	1.2
Vulkan	1.1.126	N/A
CUDA	+	-

Pros & cons summary

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Recency	18 February 2014	4 July 2011
Maximum RAM amount	4 GB	1 GB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	55 Watt	39 Watt

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