Radeon Pro Vega II vs GeForce GTX 660 OEM

Place in the ranking	734	100
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	16.29
Power efficiency	1.80	5.93
Architecture	Kepler (2012−2018)	GCN 5.1 (2018−2022)
GPU code name	GK104	Vega 20
Market segment	Desktop	Workstation
Release date	22 August 2012 (12 years ago)	3 June 2019 (5 years ago)
Launch price (MSRP)	no data	$2,199

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	1152	4096
Core clock speed	823 MHz	1574 MHz
Boost clock speed	888 MHz	1720 MHz
Number of transistors	3,540 million	13,230 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	130 Watt	475 Watt
Texture fill rate	85.25	440.3
Floating-point processing power	2.046 TFLOPS	14.09 TFLOPS
ROPs	32	64
TMUs	96	256

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	Apple MPX
Length	241 mm	no data
Width	2-slot	Quad-slot
Supplementary power connectors	1x 6-pin	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	HBM2
Maximum RAM amount	2 GB	32 GB
Memory bus width	256 Bit	4096 Bit
Memory clock speed	1400 MHz	806 MHz
Memory bandwidth	179.2 GB/s	825.3 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	2x DVI, 1x HDMI, 1x DisplayPort	1x HDMI 2.0b, 4x Thunderbolt
HDMI	+	+

API compatibility

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

DirectX	12 (11_0)	12 (12_1)
Shader Model	5.1	6.7
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.1.126	1.3
CUDA	3.0	-

Gaming performance

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

Pros & cons summary

Performance score	3.36	40.43
Recency	22 August 2012	3 June 2019
Maximum RAM amount	2 GB	32 GB
Chip lithography	28 nm	7 nm
Power consumption (TDP)	130 Watt	475 Watt

GTX 660 OEM has 265.4% lower power consumption.

Pro Vega II, on the other hand, has a 1103.3% higher aggregate performance score, an age advantage of 6 years, a 1500% higher maximum VRAM amount, and a 300% more advanced lithography process.

The Radeon Pro Vega II is our recommended choice as it beats the GeForce GTX 660 OEM in performance tests.

Be aware that GeForce GTX 660 OEM is a desktop card while Radeon Pro Vega II is a workstation one.

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