Radeon RX 6800 vs HD 7870 XT
Aggregate performance score
We've compared Radeon HD 7870 XT and Radeon RX 6800, covering specs and all relevant benchmarks.
RX 6800 outperforms HD 7870 XT by a whopping 394% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 487 | 64 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.20 | 38.99 |
| Power efficiency | 4.50 | 16.43 |
| Architecture | GCN 1.0 (2012−2020) | RDNA 2.0 (2020−2025) |
| GPU code name | Tahiti | Navi 21 |
| Market segment | Desktop | Desktop |
| Release date | 19 November 2012 (13 years ago) | 28 October 2020 (5 years ago) |
| Launch price (MSRP) | $270 | $579 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
RX 6800 has 1118% better value for money than HD 7870 XT.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 1536 | 3840 |
| Core clock speed | 925 MHz | 1700 MHz |
| Boost clock speed | 975 MHz | 2105 MHz |
| Number of transistors | 4,313 million | 26,800 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | 185 Watt | 250 Watt |
| Texture fill rate | 93.60 | 505.2 |
| Floating-point processing power | 2.995 TFLOPS | 16.17 TFLOPS |
| ROPs | 32 | 96 |
| TMUs | 96 | 240 |
| Ray Tracing Cores | no data | 60 |
| L0 Cache | no data | 960 KB |
| L1 Cache | 384 KB | 768 KB |
| L2 Cache | 512 KB | 4 MB |
| L3 Cache | no data | 128 MB |
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 3.0 x16 | PCIe 4.0 x16 |
| Length | 267 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 6-pin | 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 2 GB | 16 GB |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 1500 MHz | 2000 MHz |
| Memory bandwidth | 192.0 GB/s | 512.0 GB/s |
| Shared memory | - | - |
| Resizable BAR | - | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | 1x DVI, 1x HDMI, 2x mini-DisplayPort | 1x HDMI, 2x DisplayPort, 1x USB Type-C |
| HDMI | + | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2.131 | 1.2 |
Synthetic benchmarks
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.
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.
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.
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 | 35−40
−80%
| 175 |
| 1440p | 18−21
−82.4%
| 102 |
| 4K | 12−14 | 62
+417%
|
Cost per frame, $
| 1080p | 7.71 | 3.31
+57.1%
|
| 1440p | 15.00 | 5.68
+62.2%
|
| 4K | 22.50 | 9.34
+58.5%
|
- RX 6800 has 57% lower cost per frame in 1080p
- RX 6800 has 62% lower cost per frame in 1440p
- RX 6800 has 58% lower cost per frame in 4K
FPS performance in popular games
Full HD
Low
| Atomic Heart | 262 | 262 |
| Counter-Strike 2 | 350 | 350 |
| Cyberpunk 2077 | 135 | 135 |
Full HD
Medium
| Atomic Heart | 198 | 198 |
| Battlefield 5 | 150−160 | 150−160 |
| Counter-Strike 2 | 349 | 349 |
| Cyberpunk 2077 | 115 | 115 |
| Far Cry 5 | 197 | 197 |
| Fortnite | 230−240 | 230−240 |
| Forza Horizon 4 | 200−210 | 200−210 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| Valorant | 300−350 | 300−350 |
Full HD
High
| Atomic Heart | 120 | 120 |
| Battlefield 5 | 150−160 | 150−160 |
| Counter-Strike 2 | 259 | 259 |
| Counter-Strike: Global Offensive | 270−280 | 270−280 |
| Cyberpunk 2077 | 104 | 104 |
| Dota 2 | 145 | 145 |
| Far Cry 5 | 186 | 186 |
| Far Cry 6 | 161 | 161 |
| Fortnite | 230−240 | 230−240 |
| Forza Horizon 4 | 200−210 | 200−210 |
| Grand Theft Auto V | 159 | 159 |
| Metro Exodus | 147 | 147 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| The Witcher 3: Wild Hunt | 269 | 269 |
| Valorant | 300−350 | 300−350 |
Full HD
Ultra
| Battlefield 5 | 150−160 | 150−160 |
| Cyberpunk 2077 | 99 | 99 |
| Dota 2 | 128 | 128 |
| Far Cry 5 | 174 | 174 |
| Forza Horizon 4 | 200−210 | 200−210 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| The Witcher 3: Wild Hunt | 152 | 152 |
| Valorant | 300−350 | 300−350 |
Full HD
Epic
| Fortnite | 230−240 | 230−240 |
1440p
High
| Counter-Strike 2 | 175 | 175 |
| Counter-Strike: Global Offensive | 350−400 | 350−400 |
| Far Cry 6 | 115 | 115 |
| Grand Theft Auto V | 125 | 125 |
| Metro Exodus | 89 | 89 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| Valorant | 350−400 | 350−400 |
1440p
Ultra
| Battlefield 5 | 130−140 | 130−140 |
| Cyberpunk 2077 | 74 | 74 |
| Far Cry 5 | 163 | 163 |
| Forza Horizon 4 | 160−170 | 160−170 |
| The Witcher 3: Wild Hunt | 110−120 | 110−120 |
1440p
Epic
| Fortnite | 140−150 | 140−150 |
4K
High
| Atomic Heart | 45−50 | 45−50 |
| Counter-Strike 2 | 47 | 47 |
| Far Cry 6 | 69 | 69 |
| Grand Theft Auto V | 132 | 132 |
| Metro Exodus | 55 | 55 |
| The Witcher 3: Wild Hunt | 99 | 99 |
| Valorant | 300−350 | 300−350 |
4K
Ultra
| Battlefield 5 | 90−95 | 90−95 |
| Counter-Strike 2 | 65−70 | 65−70 |
| Cyberpunk 2077 | 34 | 34 |
| Dota 2 | 102 | 102 |
| Far Cry 5 | 91 | 91 |
| Forza Horizon 4 | 110−120 | 110−120 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 90−95 | 90−95 |
4K
Epic
| Fortnite | 75−80 | 75−80 |
This is how HD 7870 XT and RX 6800 compete in popular games:
- RX 6800 is 400% faster in 1080p
- RX 6800 is 467% faster in 1440p
- RX 6800 is 417% faster in 4K
All in all, in popular games:
- there's a draw in 64 tests (100%)
Pros & cons summary
| Performance score | 10.68 | 52.72 |
| Recency | 19 November 2012 | 28 October 2020 |
| Maximum RAM amount | 2 GB | 16 GB |
| Chip lithography | 28 nm | 7 nm |
| Power consumption (TDP) | 185 Watt | 250 Watt |
HD 7870 XT has 26% lower power consumption.
RX 6800, on the other hand, has a 394% higher aggregate performance score, an age advantage of 7 years, a 700% higher maximum VRAM amount, and a 75% more advanced lithography process.
The Radeon RX 6800 is our recommended choice as it beats the Radeon HD 7870 XT in performance tests.
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