Radeon RX 7900 XTX vs ATI Mobility HD 3870 X2

Place in performance ranking	858	8
Place by popularity	not in top-100	70
Cost-effectiveness evaluation	no data	42.19
Architecture	RV6xx (2007−2010)	RDNA 3 (2022−2023)
GPU code name	M88-XT CF	Navi 31 XTX
Market segment	Laptop	Desktop
Release date	1 September 2008 (16 years ago)	3 November 2022 (1 year ago)
Launch price (MSRP)	no data	$999

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	640	6144
Core clock speed	660 MHz	no data
Boost clock speed	no data	2270 MHz
Number of transistors	666 million	57,700 million
Manufacturing process technology	55 nm	5 nm
Power consumption (TDP)	110 Watt	355 Watt
Texture fill rate	10.56	959.6
Floating-point performance	0.4224 gflops	61.42 gflops

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).

Laptop size	large	no data
Interface	PCIe 2.0 x16	PCIe 4.0 x16
Length	no data	287 mm
Width	no data	2-slot
Supplementary power connectors	no data	2x 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	24 GB
Memory bus width	256 Bit	384 Bit
Memory clock speed	850 MHz	20000 MHz
Memory bandwidth	54.4 GB/s	960.0 GB/s
Shared memory	-	-

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	No outputs	1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI	-	+

API compatibility

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

DirectX	10.1 (10_1)	12 Ultimate (12_2)
Shader Model	4.1	6.7
OpenGL	3.3	4.6
OpenCL	N/A	2.1
Vulkan	N/A	1.3

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.

ATI Mobility HD 3870 X2 2.21

RX 7900 XTX 80.20
+3529%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

ATI Mobility HD 3870 X2 6895

RX 7900 XTX 148746
+2057%

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	6−7 −4050%	249 +4050%
1440p	4−5 −4175%	171 +4175%
4K	2−3 −5250%	107 +5250%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

5−6

−4740%

242
+4740%

Full HD
Medium Preset

Assassin's Creed Odyssey	8−9 −1975%	166 +1975%
Battlefield 5	2−3 −12100%	240−250 +12100%
Call of Duty: Modern Warfare	6−7 −1900%	120−130 +1900%
Cyberpunk 2077	5−6 −4520%	231 +4520%
Far Cry 5	4−5 −2850%	110−120 +2850%
Far Cry New Dawn	6−7 −3250%	200−210 +3250%
Forza Horizon 4	10−11 −2410%	250−260 +2410%
Hitman 3	7−8 −1743%	120−130 +1743%
Horizon Zero Dawn	18−20 −1400%	280−290 +1400%
Metro Exodus	0−1	150−160
Red Dead Redemption 2	5−6 −2380%	120−130 +2380%
Shadow of the Tomb Raider	10−11 −3400%	350−400 +3400%
Watch Dogs: Legion	35−40 −328%	150−160 +328%

Full HD
High Preset

Assassin's Creed Odyssey	8−9 −4025%	330 +4025%
Battlefield 5	2−3 −12100%	240−250 +12100%
Call of Duty: Modern Warfare	6−7 −1900%	120−130 +1900%
Cyberpunk 2077	5−6 −4060%	208 +4060%
Far Cry 5	4−5 −2850%	110−120 +2850%
Far Cry New Dawn	6−7 −3250%	200−210 +3250%
Forza Horizon 4	10−11 −2410%	250−260 +2410%
Hitman 3	7−8 −1743%	120−130 +1743%
Horizon Zero Dawn	18−20 −1400%	280−290 +1400%
Metro Exodus	0−1	150−160
Red Dead Redemption 2	5−6 −2380%	120−130 +2380%
Shadow of the Tomb Raider	10−11 −5250%	535 +5250%
The Witcher 3: Wild Hunt	12−14 −1262%	170−180 +1262%
Watch Dogs: Legion	35−40 −328%	150−160 +328%

Full HD
Ultra Preset

Assassin's Creed Odyssey	8−9 −1575%	134 +1575%
Call of Duty: Modern Warfare	6−7 −1900%	120−130 +1900%
Cyberpunk 2077	5−6 −3880%	199 +3880%
Far Cry 5	4−5 −2850%	110−120 +2850%
Forza Horizon 4	10−11 −2850%	295 +2850%
Hitman 3	7−8 −1743%	120−130 +1743%
Horizon Zero Dawn	18−20 −2037%	406 +2037%
Shadow of the Tomb Raider	10−11 −4610%	471 +4610%
The Witcher 3: Wild Hunt	12−14 −2192%	298 +2192%
Watch Dogs: Legion	35−40 −339%	158 +339%

Full HD
Epic Preset

Red Dead Redemption 2

5−6

−2380%

120−130
+2380%

1440p
High Preset

Battlefield 5	3−4 −5433%	160−170 +5433%
Far Cry New Dawn	3−4 −3633%	110−120 +3633%

1440p
Ultra Preset

Assassin's Creed Odyssey	2−3 −6500%	132 +6500%
Call of Duty: Modern Warfare	1−2 −8100%	80−85 +8100%
Cyberpunk 2077	1−2 −14000%	141 +14000%
Far Cry 5	2−3 −4100%	80−85 +4100%
Hitman 3	7−8 −1586%	110−120 +1586%
Horizon Zero Dawn	6−7 −5367%	328 +5367%
The Witcher 3: Wild Hunt	1−2 −23700%	238 +23700%
Watch Dogs: Legion	12−14 −1900%	240−250 +1900%

1440p
Epic Preset

Red Dead Redemption 2

5−6

−2380%

120−130
+2380%

4K
High Preset

Battlefield 5	0−1	85−90
Far Cry New Dawn	1−2 −6800%	65−70 +6800%

4K
Ultra Preset

Assassin's Creed Odyssey	2−3 −5400%	110 +5400%
Assassin's Creed Valhalla	1−2 −10600%	107 +10600%
Call of Duty: Modern Warfare	1−2 −5100%	50−55 +5100%
Far Cry 5	1−2 −4900%	50−55 +4900%
Watch Dogs: Legion	0−1	103

4K
Epic Preset

Red Dead Redemption 2

3−4

−3067%

95−100
+3067%

Full HD
Medium Preset

Assassin's Creed Valhalla

283

+0%

283

+0%

Full HD
High Preset

Assassin's Creed Valhalla

241

+0%

241

+0%

Full HD
Ultra Preset

Assassin's Creed Valhalla

210

+0%

210

+0%

1440p
Ultra Preset

Assassin's Creed Valhalla	171 +0%	171 +0%
Forza Horizon 4	270−280 +0%	270−280 +0%
Metro Exodus	146 +0%	146 +0%
Shadow of the Tomb Raider	360 +0%	360 +0%

4K
High Preset

Hitman 3	70−75 +0%	70−75 +0%
Horizon Zero Dawn	220−230 +0%	220−230 +0%
Metro Exodus	130−140 +0%	130−140 +0%
The Witcher 3: Wild Hunt	182 +0%	182 +0%

4K
Ultra Preset

Cyberpunk 2077	71 +0%	71 +0%
Forza Horizon 4	227 +0%	227 +0%
Shadow of the Tomb Raider	197 +0%	197 +0%

This is how ATI Mobility HD 3870 X2 and RX 7900 XTX compete in popular games:

RX 7900 XTX is 4050% faster in 1080p
RX 7900 XTX is 4175% faster in 1440p
RX 7900 XTX is 5250% faster in 4K

Here's the range of performance differences observed across popular games:

in The Witcher 3: Wild Hunt, with 1440p resolution and the Ultra Preset, the RX 7900 XTX is 23700% faster.

All in all, in popular games:

RX 7900 XTX is ahead in 54 tests (79%)
there's a draw in 14 tests (21%)

Pros & cons summary

Performance score	2.21	80.20
Recency	1 September 2008	3 November 2022
Maximum RAM amount	512 MB	24 GB
Chip lithography	55 nm	5 nm
Power consumption (TDP)	110 Watt	355 Watt

ATI Mobility HD 3870 X2 has 222.7% lower power consumption.

RX 7900 XTX, on the other hand, has a 3529% higher aggregate performance score, an age advantage of 14 years, a 4700% higher maximum VRAM amount, and a 1000% more advanced lithography process.

The Radeon RX 7900 XTX is our recommended choice as it beats the Mobility Radeon HD 3870 X2 in performance tests.

Be aware that Mobility Radeon HD 3870 X2 is a notebook card while Radeon RX 7900 XTX is a desktop one.

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