AMD Radeon Pro Vega 20 vs AMD Radeon RX 6700 Comparison

Head-to-Head Benchmarks

The benchmark data shows a decisive performance gap between the AMD Radeon RX 6700 and the AMD Radeon Pro Vega 20 across all three shared tests. The RX 6700 wins all three head-to-head matchups, with the largest margin appearing in the Geekbench Metal test. There, the RX 6700 scores 122,223 points against the Pro Vega 20's 30,427 points, a 301.7% advantage. That is the single biggest win in the comparison and indicates a massive difference in compute throughput under Apple's Metal API.

The Geekbench OpenCL test tells a similar story. The RX 6700 records 97,841 points while the Pro Vega 20 manages 26,679 points, giving the newer card a 266.7% lead. This margin is slightly smaller than the Metal result but still represents a more than threefold improvement in raw compute performance. In the Vulkan test, the RX 6700 scores 83,974 points versus 26,410 points for the Pro Vega 20, a 218% lead. The pattern is consistent: whichever API is used, the RX 6700 dominates by a wide margin.

Looking at the broader database context, the RX 6700 sits at the 75th percentile among all GPUs, while the Pro Vega 20 sits at the 73rd percentile. Despite the large head-to-head deltas, the percentile gap is only two points. This is because the RX 6700's average benchmark score of 30,433 places it in a crowded field. Its nearest rivals include the NVIDIA CMP 70HX with an average score of 30,476 (0.1% behind the RX 6700), the NVIDIA Tesla M60 at 30,490 (0.2% behind), the AMD Radeon RX 6800 at 30,095 (1.1% ahead), and the NVIDIA GeForce RTX 3070 Ti at 29,945 (1.6% ahead). The Pro Vega 20, with an average score of 27,839, sits near the AMD Radeon RX 7800M (27,883, 0.2% behind), the AMD Radeon Pro W5500X (27,973, 0.5% behind), and the NVIDIA GeForce GTX 980 Ti (28,020, 0.6% behind). The RTX 3090 is the only one of its listed rivals that it slightly exceeds, at 27,565, which is 1% behind the Pro Vega 20.

The head-to-head deltas in Metal, OpenCL, and Vulkan are all far larger than the differences between either card and its nearest rivals. This suggests that the RX 6700 is not just marginally faster in these tests, it operates in a different performance class entirely.

Architecture Differences

The two GPUs come from different architectural generations and manufacturing processes. The RX 6700 uses the Navi 22 chip built on RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. The Pro Vega 20 uses the Vega 12 chip with GCN 5.0 architecture, fabricated on a 14 nm process at GlobalFoundries. The process node difference is substantial: 7 nm versus 14 nm, which helps explain the RX 6700's higher clock speeds and efficiency. The RX 6700 has a base clock of 1941 MHz and a boost clock of 2450 MHz, with a game clock of 2174 MHz. The Pro Vega 20 runs at a base clock of 815 MHz and a boost clock of 1283 MHz. The RX 6700's boost clock is nearly double the Pro Vega 20's base clock.

Transistor counts and die sizes are only recorded for the RX 6700. It contains 17,200 million transistors on a 335 mm² die, yielding a transistor density of 51.3 million transistors per square millimeter. No comparable data exists for the Pro Vega 20 in the database.

The compute resources differ sharply. The RX 6700 has 2304 shading units, 144 texture mapping units, and 64 raster operation units. It also includes 36 ray tracing cores. The Pro Vega 20 has 1280 shading units, 80 TMUs, and 32 ROPs, with no ray tracing cores listed. The RX 6700's pixel rate is 156.8 GPixel/s and its texture rate is 352.8 GTexel/s. The Pro Vega 20 achieves 41.06 GPixel/s and 102.6 GTexel/s. In FP32 compute, the RX 6700 delivers 11.29 TFLOPS compared to 3.284 TFLOPS for the Pro Vega 20. FP16 performance is 22.58 TFLOPS (2:1) for the RX 6700 and 6.569 TFLOPS (2:1) for the Pro Vega 20.

Memory architecture is another major divergence. The RX 6700 uses 10 GB of GDDR6 memory on a 160-bit bus, with memory clocks of 2000 MHz (16 Gbps effective) and a bandwidth of 320.0 GB/s. The Pro Vega 20 uses 4 GB of HBM2 memory on a 1024-bit bus, with memory clocks of 740 MHz (1480 Mbps effective) and a bandwidth of 189.4 GB/s. The RX 6700 has more capacity and higher bandwidth, though the Pro Vega 20's wider bus is a notable design difference.

API support also differs. The RX 6700 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Pro Vega 20 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The RX 6700's newer DirectX feature level and higher Vulkan version reflect its more recent architecture.

Power and physical specifications diverge as well. The RX 6700 has a TDP of 175 W, is dual-slot, and requires a single 8-pin power connector with a suggested 450 W PSU. The Pro Vega 20 has a TDP of 100 W and is listed as an IGP (integrated graphics processor), which means it has no slot width, power connector, or suggested PSU data, and its display outputs are described as "Portable Device Dependent". The RX 6700 uses PCIe 4.0 x16, while the Pro Vega 20 uses PCIe 3.0 x16.

The RX 6700 was released on 2021-06-08, while the Pro Vega 20 was released on 2018-11-13. Both are end-of-life products.

The Verdict

The data points to one clear conclusion: the AMD Radeon RX 6700 is the stronger GPU in every measured category. It wins all three head-to-head benchmarks, with deltas ranging from 218% to 301.7%. Its average benchmark score of 30,433 is higher than the Pro Vega 20's 27,839. It has more shading units, more TMUs, more ROPs, more memory, higher bandwidth, and significantly higher clock speeds. It also supports newer API versions and includes ray tracing cores, which the Pro Vega 20 lacks.

The Pro Vega 20's only advantages are its lower TDP of 100 W versus 175 W, its HBM2 memory type, and its wider 1024-bit memory bus. It is also an IGP, which makes it suitable for integrated applications, whereas the RX 6700 is a dual-slot discrete card. However, the performance data shows that the RX 6700 is overwhelmingly faster in compute benchmarks, and the Pro Vega 20's wider bus does not compensate for its lower bandwidth of 189.4 GB/s versus 320.0 GB/s.

For users choosing between these two based strictly on recorded measurements, the RX 6700 is the obvious pick for any workload that relies on Metal, OpenCL, or Vulkan performance. The Pro Vega 20 may still be relevant in systems where its IGP form factor and lower power draw are hard requirements, but its benchmark scores indicate it cannot match the RX 6700 in raw throughput.

FAQ

Q: Which GPU wins the most head-to-head benchmarks?

A: The AMD Radeon RX 6700 wins all three head-to-head benchmarks against the AMD Radeon Pro Vega 20: Geekbench Metal, Geekbench OpenCL, and Geekbench Vulkan.

Q: What is the largest performance gap between the two cards?

A: The largest gap is in Geekbench Metal, where the RX 6700 scores 122,223 points versus the Pro Vega 20's 30,427 points, a 301.7% advantage.

Q: How do the average benchmark scores compare?

A: The RX 6700 has an average benchmark score of 30,433, while the Pro Vega 20 has an average benchmark score of 27,839.

Q: What are the memory differences?

A: The RX 6700 has 10 GB of GDDR6 memory on a 160-bit bus with 320.0 GB/s bandwidth. The Pro Vega 20 has 4 GB of HBM2 memory on a 1024-bit bus with 189.4 GB/s bandwidth.

Q: Does the Pro Vega 20 have ray tracing cores?

A: No, the Pro Vega 20 has no ray tracing cores listed. The RX 6700 has 36 ray tracing cores.

Q: What is the TDP difference?

A: The RX 6700 has a TDP of 175 W, while the Pro Vega 20 has a TDP of 100 W.

Where Each One Wins

The RX 6700 wins in every benchmark where both cards have recorded scores. In Geekbench Metal, its 122,223 points versus 30,427 points represents a 301.7% lead. In Geekbench OpenCL, its 97,841 points versus 26,679 points is a 266.7% lead. In Geekbench Vulkan, its 83,974 points versus 26,410 points is a 218% lead. The RX 6700 also wins on FP32 compute with 11.29 TFLOPS versus 3.284 TFLOPS, on texture rate with 352.8 GTexel/s versus 102.6 GTexel/s, and on pixel rate with 156.8 GPixel/s versus 41.06 GPixel/s.

The Pro Vega 20 does not win any benchmark or raw compute category where data exists for both. Its only distinguishing features are its lower 100 W TDP, its IGP form factor, and its HBM2 memory type on a 1024-bit bus. These are architectural facts, not performance wins. The Pro Vega 20's FP16 performance of 6.569 TFLOPS (2:1) is lower than the RX 6700's 22.58 TFLOPS (2:1). Its memory bandwidth of 189.4 GB/s is lower than the RX 6700's 320.0 GB/s.

For use cases, the RX 6700 is suited for high-throughput compute tasks across Metal, OpenCL, and Vulkan, as well as any workload that benefits from its 10 GB memory capacity, ray tracing cores, and DirectX 12 Ultimate support. The Pro Vega 20 is suited for integrated, low-power systems where its 100 W TDP and IGP design are required, and where the workload does not demand high compute throughput.

Specification Differences

The two cards differ in nearly every specification field. The RX 6700 uses the Navi 22 chip with RDNA 2.0 architecture on a 7 nm TSMC process, while the Pro Vega 20 uses the Vega 12 chip with GCN 5.0 architecture on a 14 nm GlobalFoundries process. The RX 6700 has a base clock of 1941 MHz, boost clock of 2450 MHz, and game clock of 2174 MHz. The Pro Vega 20 has a base clock of 815 MHz and boost clock of 1283 MHz, with no game clock listed. Memory clocks are 2000 MHz (16 Gbps effective) for the RX 6700 and 740 MHz (1480 Mbps effective) for the Pro Vega 20.

Shading units: 2304 for the RX 2700, 1280 for the Pro Vega 20. TMUs: 144 versus 80. ROPs: 64 versus 32. Ray tracing cores: 36 for the RX 6700, none for the Pro Vega 20. Pixel rate: 156.8 GPixel/s versus 41.06 GPixel/s. Texture rate: 352.8 GTexel/s versus 102.6 GTexel/s. FP32: 11.29 TFLOPS versus 3.284 TFLOPS. FP16: 22.58 TFLOPS (2:1) versus 6.569 TFLOPS (2:1). TDP: 175 W versus 100 W. Slot width: dual-slot for the RX 6700, IGP for the Pro Vega 20. Power connectors: 1x 8-pin for the RX 6700, none listed for the Pro Vega 20. Suggested PSU: 450 W for the RX 6700, none listed for the Pro Vega 20. Bus interface: PCIe 4.0 x16 for the RX 6700, PCIe 3.0 x16 for the Pro Vega 20. Display outputs: 1x HDMI 2.1 and 3x DisplayPort 1.4a for the RX 6700, "Portable Device Dependent" for the Pro Vega 20. DirectX support: 12 Ultimate (12_2) for the RX 6700, 12 (12_1) for the Pro Vega 20. Vulkan support: 1.4 for the RX 6700, 1.3 for the Pro Vega 20. Both support OpenGL 4.6. The RX 6700 has 17,200 million transistors and a die size of 335 mm², while the Pro Vega 20 has no transistor count or die size recorded. Release dates are 2021-06-08 for the RX 6700 and 2018-11-13 for the Pro Vega 20. Both are end-of-life.