RTX A40 vs Radeon HD 6670

Primary details

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

Place in the ranking	988	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.08	no data
Power efficiency	2.05	no data
Architecture	TeraScale 2 (2009−2015)	Ampere (2020−2025)
GPU code name	Turks	GA102
Market segment	Desktop	Workstation
Design	reference	no data
Release date	19 April 2011 (15 years ago)	5 October 2020 (5 years ago)
Launch price (MSRP)	$99	no data

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

Performance to price scatter graph

Currently popular graphics cards are shown for comparison.

Detailed specifications

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

Pipelines / CUDA cores	480	10752
Core clock speed	no data	1305 MHz
Boost clock speed	800 MHz	1755 MHz
Number of transistors	716 million	28,300 million
Manufacturing process technology	40 nm	8 nm
Power consumption (TDP)	66 Watt	300 Watt
Texture fill rate	19.20	589.7
Floating-point processing power	0.768 TFLOPS	37.74 TFLOPS
ROPs	8	112
TMUs	24	336
Tensor Cores	no data	336
Ray Tracing Cores	no data	84
L1 Cache	48 KB	10.5 MB
L2 Cache	256 KB	6 MB

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	PCIe 2.0 x16	no data
Interface	PCIe 2.0 x16	PCIe 4.0 x16
Length	168 mm	267 mm
Width	1-slot	2-slot
Supplementary power connectors	None	8-pin EPS

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	GDDR6
Maximum RAM amount	1 GB	48 GB
Memory bus width	128 Bit	384 Bit
Memory clock speed	1050 MHz	1812 MHz
Memory bandwidth	64 GB/s	695.8 GB/s
Resizable BAR	-	+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	1x DVI, 1x HDMI, 1x VGA	3x DisplayPort
Eyefinity	+	-
HDMI	+	-

Supported technologies

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

CrossFire

+

-

API and SDK support

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

DirectX	DirectX® 11	12 Ultimate (12_2)
Shader Model	5.0	6.5
OpenGL	4.4	4.6
OpenCL	1.2	2.0
Vulkan	-	1.2
CUDA	-	8.6
DLSS	-	+

Pros & cons summary

---

Recency	19 April 2011	5 October 2020
Maximum RAM amount	1 GB	48 GB
Chip lithography	40 nm	8 nm
Power consumption (TDP)	66 Watt	300 Watt