ATI Radeon HD 5850 vs GeForce GTX 660

Place in the ranking	433	614
Place by popularity	89	not in top-100
Cost-effectiveness evaluation	3.28	0.59
Power efficiency	5.34	2.46
Architecture	Kepler (2012−2018)	TeraScale 2 (2009−2015)
GPU code name	GK106	Cypress
Market segment	Desktop	Desktop
Release date	6 September 2012 (12 years ago)	30 September 2009 (15 years ago)
Launch price (MSRP)	$229	$299

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GTX 660 has 456% better value for money than ATI HD 5850.

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	960	1440
Core clock speed	980 MHz	725 MHz
Boost clock speed	1033 MHz	no data
Number of transistors	2,540 million	2,154 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	140 Watt	151 Watt
Texture fill rate	82.56	52.20
Floating-point processing power	1.981 TFLOPS	2.088 TFLOPS
ROPs	24	32
TMUs	80	72

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	241 mm	241 mm
Height	4.376" (11.1 cm)	no data
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	2x 6-pin
SLI options	+	-

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	2 GB	1 GB
Memory bus width	192-bit GDDR5	256 Bit
Memory clock speed	6.0 GB/s	1000 MHz
Memory bandwidth	144.2 GB/s	128.0 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 HDMI, One DisplayPort	2x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support	4 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.

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

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	4.3	4.4
OpenCL	1.2	1.2
Vulkan	1.1.126	N/A
CUDA	+	-

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark 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 10.37
+101%

ATI HD 5850 5.15

Passmark

This is the most ubiquitous GPU benchmark. 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.

GTX 660 4001
+101%

ATI HD 5850 1988

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	110−120 +86.4%	59 −86.4%
Full HD	47 −17%	55 +17%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

9−10

+0%

9−10

+0%

Full HD
Medium Preset

Assassin's Creed Odyssey	14−16 +0%	14−16 +0%
Assassin's Creed Valhalla	5−6 +0%	5−6 +0%
Battlefield 5	12−14 +0%	12−14 +0%
Call of Duty: Modern Warfare	10−12 +0%	10−12 +0%
Cyberpunk 2077	9−10 +0%	9−10 +0%
Far Cry 5	10−12 +0%	10−12 +0%
Far Cry New Dawn	14−16 +0%	14−16 +0%
Forza Horizon 4	30−35 +0%	30−35 +0%
Hitman 3	10−12 +0%	10−12 +0%
Horizon Zero Dawn	30−35 +0%	30−35 +0%
Metro Exodus	12−14 +0%	12−14 +0%
Red Dead Redemption 2	14−16 +0%	14−16 +0%
Shadow of the Tomb Raider	18−20 +0%	18−20 +0%
Watch Dogs: Legion	45−50 +0%	45−50 +0%

Full HD
High Preset

Assassin's Creed Odyssey	14−16 +0%	14−16 +0%
Assassin's Creed Valhalla	5−6 +0%	5−6 +0%
Battlefield 5	12−14 +0%	12−14 +0%
Call of Duty: Modern Warfare	10−12 +0%	10−12 +0%
Cyberpunk 2077	9−10 +0%	9−10 +0%
Far Cry 5	10−12 +0%	10−12 +0%
Far Cry New Dawn	14−16 +0%	14−16 +0%
Forza Horizon 4	30−35 +0%	30−35 +0%
Hitman 3	10−12 +0%	10−12 +0%
Horizon Zero Dawn	30−35 +0%	30−35 +0%
Metro Exodus	12−14 +0%	12−14 +0%
Red Dead Redemption 2	14−16 +0%	14−16 +0%
Shadow of the Tomb Raider	18−20 +0%	18−20 +0%
The Witcher 3: Wild Hunt	18−20 +0%	18−20 +0%
Watch Dogs: Legion	45−50 +0%	45−50 +0%

Full HD
Ultra Preset

Assassin's Creed Odyssey	14−16 +0%	14−16 +0%
Assassin's Creed Valhalla	5−6 +0%	5−6 +0%
Call of Duty: Modern Warfare	10−12 +0%	10−12 +0%
Cyberpunk 2077	9−10 +0%	9−10 +0%
Far Cry 5	10−12 +0%	10−12 +0%
Forza Horizon 4	30−35 +0%	30−35 +0%
Hitman 3	10−12 +0%	10−12 +0%
Horizon Zero Dawn	30−35 +0%	30−35 +0%
Shadow of the Tomb Raider	18−20 +0%	18−20 +0%
The Witcher 3: Wild Hunt	18−20 +0%	18−20 +0%
Watch Dogs: Legion	45−50 +0%	45−50 +0%

Full HD
Epic Preset

Red Dead Redemption 2

14−16

+0%

14−16

+0%

1440p
High Preset

Battlefield 5	10−11 +0%	10−11 +0%
Far Cry New Dawn	8−9 +0%	8−9 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	5−6 +0%	5−6 +0%
Assassin's Creed Valhalla	0−1	0−1
Call of Duty: Modern Warfare	4−5 +0%	4−5 +0%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Far Cry 5	6−7 +0%	6−7 +0%
Forza Horizon 4	12−14 +0%	12−14 +0%
Hitman 3	9−10 +0%	9−10 +0%
Horizon Zero Dawn	12−14 +0%	12−14 +0%
Metro Exodus	3−4 +0%	3−4 +0%
The Witcher 3: Wild Hunt	4−5 +0%	4−5 +0%
Watch Dogs: Legion	30−35 +0%	30−35 +0%

1440p
Epic Preset

Red Dead Redemption 2

9−10

+0%

9−10

+0%

4K
High Preset

Battlefield 5	4−5 +0%	4−5 +0%
Far Cry New Dawn	3−4 +0%	3−4 +0%
Hitman 3	1−2 +0%	1−2 +0%
Horizon Zero Dawn	8−9 +0%	8−9 +0%
Metro Exodus	2−3 +0%	2−3 +0%
The Witcher 3: Wild Hunt	1−2 +0%	1−2 +0%

4K
Ultra Preset

Assassin's Creed Odyssey	3−4 +0%	3−4 +0%
Assassin's Creed Valhalla	2−3 +0%	2−3 +0%
Call of Duty: Modern Warfare	2−3 +0%	2−3 +0%
Cyberpunk 2077	0−1	0−1
Far Cry 5	3−4 +0%	3−4 +0%
Forza Horizon 4	4−5 +0%	4−5 +0%
Watch Dogs: Legion	1−2 +0%	1−2 +0%

4K
Epic Preset

Red Dead Redemption 2

6−7

+0%

6−7

+0%

This is how GTX 660 and ATI HD 5850 compete in popular games:

GTX 660 is 86% faster in 900p
ATI HD 5850 is 17% faster in 1080p

All in all, in popular games:

there's a draw in 68 tests (100%)

Pros & cons summary

Performance score	10.37	5.15
Recency	6 September 2012	30 September 2009
Maximum RAM amount	2 GB	1 GB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	140 Watt	151 Watt

GTX 660 has a 101.4% higher aggregate performance score, an age advantage of 2 years, a 100% higher maximum VRAM amount, a 42.9% more advanced lithography process, and 7.9% lower power consumption.

The GeForce GTX 660 is our recommended choice as it beats the Radeon HD 5850 in performance tests.

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