Radeon RX 6700 XT vs ATI HD 3870 X2

Place in the ranking	913	50
Place by popularity	not in top-100	82
Cost-effectiveness evaluation	0.04	58.04
Power efficiency	0.77	15.51
Architecture	TeraScale (2005−2013)	RDNA 2.0 (2020−2024)
GPU code name	R680	Navi 22
Market segment	Desktop	Desktop
Release date	26 January 2008 (16 years ago)	3 March 2021 (3 years ago)
Launch price (MSRP)	$449	$479

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6700 XT has 145000% better value for money than ATI HD 3870 X2.

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	320	2560
Core clock speed	825 MHz	2321 MHz
Boost clock speed	no data	2581 MHz
Number of transistors	666 million	17,200 million
Manufacturing process technology	55 nm	7 nm
Power consumption (TDP)	165 Watt	230 Watt
Texture fill rate	13.20	413.0
Floating-point processing power	0.528 TFLOPS	13.21 TFLOPS
ROPs	16	64
TMUs	16	160
Ray Tracing Cores	no data	40

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 2.0 x16	PCIe 4.0 x16
Length	267 mm	267 mm
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin + 1x 8-pin	1x 6-pin + 1x 8-pin

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	GDDR3	GDDR6
Maximum RAM amount	512 MB	12 GB
Memory bus width	256 Bit	192 Bit
Memory clock speed	901 MHz	2000 MHz
Memory bandwidth	57.66 GB/s	384.0 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	2x DVI, 1x S-Video	1x HDMI, 3x DisplayPort
HDMI	-	+

API compatibility

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

DirectX	10.1 (10_1)	12 Ultimate (12_2)
Shader Model	4.1	6.5
OpenGL	3.3	4.6
OpenCL	N/A	2.1
Vulkan	N/A	1.2

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.

ATI HD 3870 X2 1.83

RX 6700 XT 51.50
+2714%

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.

ATI HD 3870 X2 708

RX 6700 XT 19874
+2707%

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	5−6 −3120%	161 +3120%
1440p	3−4 −2933%	91 +2933%
4K	1−2 −5000%	51 +5000%

Cost per frame, $

1080p	89.80	2.98
1440p	149.67	5.26
4K	449.00	9.39

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

119

+0%

119

+0%

Full HD
Medium Preset

Assassin's Creed Odyssey	100−110 +0%	100−110 +0%
Assassin's Creed Valhalla	169 +0%	169 +0%
Battlefield 5	160−170 +0%	160−170 +0%
Call of Duty: Modern Warfare	100−105 +0%	100−105 +0%
Cyberpunk 2077	99 +0%	99 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Far Cry New Dawn	120−130 +0%	120−130 +0%
Forza Horizon 4	210−220 +0%	210−220 +0%
Hitman 3	138 +0%	138 +0%
Horizon Zero Dawn	200−210 +0%	200−210 +0%
Metro Exodus	140−150 +0%	140−150 +0%
Red Dead Redemption 2	100−110 +0%	100−110 +0%
Shadow of the Tomb Raider	200−210 +0%	200−210 +0%
Watch Dogs: Legion	140−150 +0%	140−150 +0%

Full HD
High Preset

Assassin's Creed Odyssey	100−110 +0%	100−110 +0%
Assassin's Creed Valhalla	144 +0%	144 +0%
Battlefield 5	160−170 +0%	160−170 +0%
Call of Duty: Modern Warfare	100−105 +0%	100−105 +0%
Cyberpunk 2077	90 +0%	90 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Far Cry New Dawn	120−130 +0%	120−130 +0%
Forza Horizon 4	210−220 +0%	210−220 +0%
Hitman 3	136 +0%	136 +0%
Horizon Zero Dawn	200−210 +0%	200−210 +0%
Metro Exodus	140−150 +0%	140−150 +0%
Red Dead Redemption 2	100−110 +0%	100−110 +0%
Shadow of the Tomb Raider	281 +0%	281 +0%
The Witcher 3: Wild Hunt	100−110 +0%	100−110 +0%
Watch Dogs: Legion	140−150 +0%	140−150 +0%

Full HD
Ultra Preset

Assassin's Creed Odyssey	100−110 +0%	100−110 +0%
Assassin's Creed Valhalla	125 +0%	125 +0%
Call of Duty: Modern Warfare	100−105 +0%	100−105 +0%
Cyberpunk 2077	85 +0%	85 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Forza Horizon 4	210−220 +0%	210−220 +0%
Hitman 3	135 +0%	135 +0%
Horizon Zero Dawn	193 +0%	193 +0%
Shadow of the Tomb Raider	240 +0%	240 +0%
The Witcher 3: Wild Hunt	127 +0%	127 +0%
Watch Dogs: Legion	84 +0%	84 +0%

Full HD
Epic Preset

Red Dead Redemption 2

100−110

+0%

100−110

+0%

1440p
High Preset

Battlefield 5	100−110 +0%	100−110 +0%
Far Cry New Dawn	80−85 +0%	80−85 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	55−60 +0%	55−60 +0%
Assassin's Creed Valhalla	109 +0%	109 +0%
Call of Duty: Modern Warfare	60−65 +0%	60−65 +0%
Cyberpunk 2077	56 +0%	56 +0%
Far Cry 5	60−65 +0%	60−65 +0%
Forza Horizon 4	260−270 +0%	260−270 +0%
Hitman 3	83 +0%	83 +0%
Horizon Zero Dawn	145 +0%	145 +0%
Metro Exodus	123 +0%	123 +0%
Shadow of the Tomb Raider	173 +0%	173 +0%
The Witcher 3: Wild Hunt	80−85 +0%	80−85 +0%
Watch Dogs: Legion	220−230 +0%	220−230 +0%

1440p
Epic Preset

Red Dead Redemption 2

85−90

+0%

85−90

+0%

4K
High Preset

Battlefield 5	55−60 +0%	55−60 +0%
Far Cry New Dawn	45−50 +0%	45−50 +0%
Hitman 3	48 +0%	48 +0%
Horizon Zero Dawn	210−220 +0%	210−220 +0%
Metro Exodus	70−75 +0%	70−75 +0%
The Witcher 3: Wild Hunt	74 +0%	74 +0%

4K
Ultra Preset

Assassin's Creed Odyssey	35−40 +0%	35−40 +0%
Assassin's Creed Valhalla	48 +0%	48 +0%
Call of Duty: Modern Warfare	35−40 +0%	35−40 +0%
Cyberpunk 2077	25 +0%	25 +0%
Far Cry 5	30−35 +0%	30−35 +0%
Forza Horizon 4	75−80 +0%	75−80 +0%
Shadow of the Tomb Raider	93 +0%	93 +0%
Watch Dogs: Legion	35 +0%	35 +0%

4K
Epic Preset

Red Dead Redemption 2

45−50

+0%

45−50

+0%

This is how ATI HD 3870 X2 and RX 6700 XT compete in popular games:

RX 6700 XT is 3120% faster in 1080p
RX 6700 XT is 2933% faster in 1440p
RX 6700 XT is 5000% faster in 4K

All in all, in popular games:

there's a draw in 72 tests (100%)

Pros & cons summary

Performance score	1.83	51.50
Recency	26 January 2008	3 March 2021
Maximum RAM amount	512 MB	12 GB
Chip lithography	55 nm	7 nm
Power consumption (TDP)	165 Watt	230 Watt

ATI HD 3870 X2 has 39.4% lower power consumption.

RX 6700 XT, on the other hand, has a 2714.2% higher aggregate performance score, an age advantage of 13 years, a 2300% higher maximum VRAM amount, and a 685.7% more advanced lithography process.

The Radeon RX 6700 XT is our recommended choice as it beats the Radeon HD 3870 X2 in performance tests.

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