Radeon Pro Vega 20 vs GeForce GTX 660

Place in performance ranking	405	354
Place by popularity	70	not in top-100
Cost-effectiveness evaluation	2.42	14.74
Architecture	Kepler (2012−2018)	Vega (2017−2021)
GPU code name	GK106	Vega Mobile
Market segment	Desktop	Mobile workstation
Release date	6 September 2012 (11 years ago)	15 November 2018 (5 years ago)
Launch price (MSRP)	$229	no data
Current price	$172 (0.8x MSRP)	$360

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Pro Vega 20 has 509% better value for money than GTX 660.

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	960	1280
CUDA cores	960	no data
Core clock speed	980 MHz	815 MHz
Boost clock speed	1033 MHz	1283 MHz
Number of transistors	2,540 million	no data
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	140 Watt	100 Watt
Texture fill rate	78.4 billion/sec	102.6
Floating-point performance	1,981 gflops	no data

Form factor & compatibility

Information on GeForce GTX 660 and Radeon Pro Vega 20 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop size	no data	large
Bus support	PCI Express 3.0	no data
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Length	9.5" (24.1 cm)	no data
Height	4.376" (11.1 cm)	no data
Width	2-slot	no data
Supplementary power connectors	One 6-pin	1x 6-pin + 1x 8-pin
SLI options	+	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	HBM2
Maximum RAM amount	2 GB	4 GB
Memory bus width	192-bit GDDR5	1024 Bit
Memory clock speed	6.0 GB/s	1480 MHz
Memory bandwidth	144.2 GB/s	189.4 GB/s
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	One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort	No outputs
Multi monitor support	4 displays	no data
HDMI	+	no data
HDCP	+	no data
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.

3D Blu-Ray	+	no data
3D Gaming	+	no data
3D Vision	+	no data

API compatibility

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

DirectX	12 (11_0)	12 (12_1)
Shader Model	5.1	6.3
OpenGL	4.3	4.6
OpenCL	1.2	2.0
Vulkan	1.1.126	1.2.131
CUDA	+	no data

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 660 10.36

Pro Vega 20 13.72
+32.4%

Radeon Pro Vega 20 outperforms GeForce GTX 660 by 32% based on our aggregate benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

GTX 660 3999

Pro Vega 20 5299
+32.5%

Radeon Pro Vega 20 outperforms GeForce GTX 660 by 33% in Passmark.

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

Benchmark coverage: 14%

GTX 660 5040

Pro Vega 20 9044
+79.4%

Radeon Pro Vega 20 outperforms GeForce GTX 660 by 79% in 3DMark Fire Strike Graphics.

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

Benchmark coverage: 9%

GTX 660 11296

Pro Vega 20 26840
+138%

Radeon Pro Vega 20 outperforms GeForce GTX 660 by 138% in GeekBench 5 OpenCL.

GeekBench 5 Vulkan

Benchmark coverage: 5%

GTX 660 11469

Pro Vega 20 26819
+134%

Radeon Pro Vega 20 outperforms GeForce GTX 660 by 134% in GeekBench 5 Vulkan.

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:

Full HD	47 −34%	63 +34%
4K	30−35 −36.7%	41 +36.7%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

21−24

−28.6%

27−30
+28.6%

Full HD
Medium Preset

Assassin's Creed Odyssey	27−30 −25%	35−40 +25%
Assassin's Creed Valhalla	21−24 −22.7%	27−30 +22.7%
Battlefield 5	40−45 −25%	55−60 +25%
Call of Duty: Modern Warfare	27−30 −25%	35−40 +25%
Cyberpunk 2077	21−24 −28.6%	27−30 +28.6%
Far Cry 5	30−35 −25%	40−45 +25%
Far Cry New Dawn	51 −27.5%	65−70 +27.5%
Forza Horizon 4	65−70 −30.8%	85−90 +30.8%
Hitman 3	24−27 −15.4%	30−33 +15.4%
Horizon Zero Dawn	55−60 −27.3%	70−75 +27.3%
Metro Exodus	45−50 −22.2%	55−60 +22.2%
Red Dead Redemption 2	35−40 −31.6%	50−55 +31.6%
Shadow of the Tomb Raider	40−45 −27.9%	55−60 +27.9%
Watch Dogs: Legion	45−50 −22.2%	55−60 +22.2%

Full HD
High Preset

Assassin's Creed Odyssey	27−30 −25%	35−40 +25%
Assassin's Creed Valhalla	21−24 −22.7%	27−30 +22.7%
Battlefield 5	40−45 −25%	55−60 +25%
Call of Duty: Modern Warfare	27−30 −25%	35−40 +25%
Cyberpunk 2077	21−24 −28.6%	27−30 +28.6%
Far Cry 5	30−35 −25%	40−45 +25%
Far Cry New Dawn	46 −30.4%	60−65 +30.4%
Forza Horizon 4	65−70 −30.8%	85−90 +30.8%
Hitman 3	24−27 −15.4%	30−33 +15.4%
Horizon Zero Dawn	55−60 −27.3%	70−75 +27.3%
Metro Exodus	45−50 −22.2%	55−60 +22.2%
Red Dead Redemption 2	35−40 −31.6%	50−55 +31.6%
Shadow of the Tomb Raider	40−45 −27.9%	55−60 +27.9%
The Witcher 3: Wild Hunt	50 −30%	65−70 +30%
Watch Dogs: Legion	45−50 −22.2%	55−60 +22.2%

Full HD
Ultra Preset

Assassin's Creed Odyssey	27−30 −25%	35−40 +25%
Assassin's Creed Valhalla	21−24 −22.7%	27−30 +22.7%
Call of Duty: Modern Warfare	27−30 −25%	35−40 +25%
Cyberpunk 2077	21−24 −28.6%	27−30 +28.6%
Far Cry 5	30−35 −25%	40−45 +25%
Forza Horizon 4	65−70 −30.8%	85−90 +30.8%
Horizon Zero Dawn	55−60 −27.3%	70−75 +27.3%
Shadow of the Tomb Raider	40−45 −27.9%	55−60 +27.9%
The Witcher 3: Wild Hunt	31 −29%	40−45 +29%
Watch Dogs: Legion	45−50 −22.2%	55−60 +22.2%

Full HD
Epic Preset

Red Dead Redemption 2

35−40

−31.6%

50−55
+31.6%

1440p
High Preset

Battlefield 5	27−30 −29.6%	35−40 +29.6%
Far Cry New Dawn	24−27 −20%	30−33 +20%

1440p
Ultra Preset

Assassin's Creed Odyssey	14−16 −28.6%	18−20 +28.6%
Assassin's Creed Valhalla	10−11 −20%	12−14 +20%
Call of Duty: Modern Warfare	16−18 −23.5%	21−24 +23.5%
Cyberpunk 2077	7−8 −28.6%	9−10 +28.6%
Far Cry 5	21−24 −22.7%	27−30 +22.7%
Forza Horizon 4	24−27 −15.4%	30−33 +15.4%
Hitman 3	16−18 −23.5%	21−24 +23.5%
Horizon Zero Dawn	27−30 −25%	35−40 +25%
Metro Exodus	21−24 −30.4%	30−33 +30.4%
Shadow of the Tomb Raider	24−27 −25%	30−33 +25%
The Witcher 3: Wild Hunt	14−16 −28.6%	18−20 +28.6%
Watch Dogs: Legion	8−9 −25%	10−11 +25%

1440p
Epic Preset

Red Dead Redemption 2

21−24

−22.7%

27−30
+22.7%

4K
High Preset

Battlefield 5	12−14 −23.1%	16−18 +23.1%
Far Cry New Dawn	10−11 −20%	12−14 +20%
Hitman 3	10−11 −20%	12−14 +20%
Horizon Zero Dawn	14−16 −20%	18−20 +20%
Shadow of the Tomb Raider	8−9 −25%	10−11 +25%
The Witcher 3: Wild Hunt	12−14 −16.7%	14−16 +16.7%

4K
Ultra Preset

Assassin's Creed Odyssey	8−9 −25%	10−11 +25%
Assassin's Creed Valhalla	6−7 −16.7%	7−8 +16.7%
Call of Duty: Modern Warfare	7−8 −28.6%	9−10 +28.6%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Far Cry 5	7−8 −28.6%	9−10 +28.6%
Forza Horizon 4	18−20 −16.7%	21−24 +16.7%
Horizon Zero Dawn	14−16 −20%	18−20 +20%
Metro Exodus	12−14 −23.1%	16−18 +23.1%
Watch Dogs: Legion	5−6 −20%	6−7 +20%

4K
Epic Preset

Red Dead Redemption 2

12−14

−16.7%

14−16
+16.7%

This is how GTX 660 and Pro Vega 20 compete in popular games:

Pro Vega 20 is 34% faster in 1080p
Pro Vega 20 is 37% faster in 4K

Pros & cons summary

Performance score	10.36	13.72
Recency	6 September 2012	15 November 2018
Maximum RAM amount	2 GB	4 GB
Chip lithography	28 nm	14 nm
Power consumption (TDP)	140 Watt	100 Watt