Arc B580 vs Radeon HD 6870

Place in the ranking	607	107
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.93	91.31
Power efficiency	2.62	14.59
Architecture	TeraScale 2 (2009−2015)	Xe2 (2025)
GPU code name	Barts	BMG-G21
Market segment	Desktop	Desktop
Design	reference	no data
Release date	21 October 2010 (14 years ago)	16 January 2025 (recently)
Launch price (MSRP)	$239	$249

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

Arc B580 has 9718% better value for money than HD 6870.

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	1120	2560
Core clock speed	no data	2670 MHz
Boost clock speed	900 MHz	2670 MHz
Number of transistors	1,700 million	19,600 million
Manufacturing process technology	40 nm	5 nm
Power consumption (TDP)	151 Watt	190 Watt
Texture fill rate	50.40	427.2
Floating-point processing power	2.016 TFLOPS	13.67 TFLOPS
ROPs	32	80
TMUs	56	160
Tensor Cores	no data	160
Ray Tracing Cores	no data	20

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	PCIe 2.0 x16	no data
Interface	PCIe 2.0 x16	PCIe 4.0 x8
Length	220 mm	272 mm
Width	2-slot	2-slot
Supplementary power connectors	2x 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	GDDR5	GDDR6
Maximum RAM amount	1 GB	12 GB
Memory bus width	256 Bit	192 Bit
Memory clock speed	1050 MHz	2375 MHz
Memory bandwidth	134.4 GB/s	456.0 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	2x DVI, 1x HDMI, 2x mini-DisplayPort	1x HDMI 2.1a, 3x DisplayPort 2.1
Eyefinity	+	-
HDMI	+	+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

CrossFire

API and SDK compatibility

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

DirectX	DirectX® 11	12 Ultimate (12_2)
Shader Model	5.0	6.6
OpenGL	4.4	4.6
OpenCL	1.2	3.0
Vulkan	-	1.4

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.

HD 6870 5.36

Arc B580 37.62
+602%

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.

HD 6870 2210

Arc B580 15503
+601%

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	61 −556%	400−450 +556%
Full HD	63 −98.4%	125 +98.4%
1200p	39 −592%	270−280 +592%
1440p	9−10 −678%	70 +678%
4K	5−6 −740%	42 +740%

Cost per frame, $

1080p	3.79 −90.4%	1.99 +90.4%
1440p	26.56 −647%	3.56 +647%
4K	47.80 −706%	5.93 +706%

Arc B580 has 90% lower cost per frame in 1080p
Arc B580 has 647% lower cost per frame in 1440p
Arc B580 has 706% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	12−14 −1092%	143 +1092%
Cyberpunk 2077	12−14 −567%	80−85 +567%

Full HD
Medium Preset

Battlefield 5	18−20 −489%	100−110 +489%
Counter-Strike 2	12−14 −875%	117 +875%
Cyberpunk 2077	12−14 −567%	80−85 +567%
Forza Horizon 4	24−27 −567%	160−170 +567%
Forza Horizon 5	12−14 −758%	100−110 +758%
Metro Exodus	14−16 −586%	95−100 +586%
Red Dead Redemption 2	16−18 −365%	75−80 +365%
Valorant	18−20 −800%	160−170 +800%

Full HD
High Preset

Battlefield 5	18−20 −489%	100−110 +489%
Counter-Strike 2	12−14 −767%	104 +767%
Cyberpunk 2077	12−14 −567%	80−85 +567%
Dota 2	18−20 −637%	140 +637%
Far Cry 5	27−30 −156%	69 +156%
Fortnite	30−35 −415%	170−180 +415%
Forza Horizon 4	24−27 −567%	160−170 +567%
Forza Horizon 5	12−14 −758%	100−110 +758%
Grand Theft Auto V	18−20 −584%	130−140 +584%
Metro Exodus	14−16 −157%	36 +157%
PLAYERUNKNOWN'S BATTLEGROUNDS	45−50 −323%	200−210 +323%
Red Dead Redemption 2	16−18 −365%	75−80 +365%
The Witcher 3: Wild Hunt	18−20 −700%	140−150 +700%
Valorant	18−20 −800%	160−170 +800%
World of Tanks	189 −47.6%	270−280 +47.6%

Full HD
Ultra Preset

Battlefield 5	18−20 −489%	100−110 +489%
Counter-Strike 2	12−14 −692%	95 +692%
Cyberpunk 2077	12−14 −567%	80−85 +567%
Dota 2	18−20 −584%	130−140 +584%
Far Cry 5	27−30 −267%	95−100 +267%
Forza Horizon 4	24−27 −567%	160−170 +567%
Forza Horizon 5	12−14 −758%	100−110 +758%
PLAYERUNKNOWN'S BATTLEGROUNDS	45−50 −323%	200−210 +323%
Valorant	18−20 −800%	160−170 +800%

1440p
High Preset

Dota 2	6−7 −1050%	69 +1050%
Grand Theft Auto V	6−7 −567%	40−45 +567%
PLAYERUNKNOWN'S BATTLEGROUNDS	35−40 −586%	240−250 +586%
Red Dead Redemption 2	4−5 −900%	40−45 +900%
World of Tanks	40−45 −524%	250−260 +524%

1440p
Ultra Preset

Battlefield 5	9−10 −722%	70−75 +722%
Cyberpunk 2077	5−6 −600%	35−40 +600%
Far Cry 5	12−14 −992%	130−140 +992%
Forza Horizon 4	10−11 −600%	70−75 +600%
Forza Horizon 5	8−9 −738%	65−70 +738%
Metro Exodus	6−7 −1350%	85−90 +1350%
The Witcher 3: Wild Hunt	9−10 −567%	60−65 +567%
Valorant	14−16 −753%	120−130 +753%

4K
High Preset

Counter-Strike 2	3−4 −533%	18−20 +533%
Dota 2	16−18 −359%	78 +359%
Grand Theft Auto V	16−18 −547%	110−120 +547%
Metro Exodus	0−1	46
PLAYERUNKNOWN'S BATTLEGROUNDS	16−18 −719%	130−140 +719%
Red Dead Redemption 2	4−5 −550%	24−27 +550%
The Witcher 3: Wild Hunt	16−18 −547%	110−120 +547%

4K
Ultra Preset

Battlefield 5	5−6 −840%	45−50 +840%
Counter-Strike 2	3−4 −367%	14 +367%
Cyberpunk 2077	2−3 −600%	14−16 +600%
Dota 2	16−18 −547%	110−120 +547%
Far Cry 5	6−7 −900%	60−65 +900%
Fortnite	5−6 −1060%	55−60 +1060%
Forza Horizon 4	6−7 −567%	40−45 +567%
Forza Horizon 5	3−4 −1167%	35−40 +1167%
Valorant	5−6 −1260%	65−70 +1260%

This is how HD 6870 and Arc B580 compete in popular games:

Arc B580 is 556% faster in 900p
Arc B580 is 98% faster in 1080p
Arc B580 is 592% faster in 1200p
Arc B580 is 678% faster in 1440p
Arc B580 is 740% faster in 4K

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

in Metro Exodus, with 1440p resolution and the Ultra Preset, the Arc B580 is 1350% faster.

All in all, in popular games:

Without exception, Arc B580 surpassed HD 6870 in all 43 of our tests.

Pros & cons summary

Performance score	5.36	37.62
Recency	21 October 2010	16 January 2025
Maximum RAM amount	1 GB	12 GB
Chip lithography	40 nm	5 nm
Power consumption (TDP)	151 Watt	190 Watt

HD 6870 has 25.8% lower power consumption.

Arc B580, on the other hand, has a 601.9% higher aggregate performance score, an age advantage of 14 years, a 1100% higher maximum VRAM amount, and a 700% more advanced lithography process.

The Arc B580 is our recommended choice as it beats the Radeon HD 6870 in performance tests.

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