AMD Radeon 540 vs AMD Radeon Vega 8 Comparison

Where Each One Wins

The database shows a clean split between these two AMD parts, with each taking one benchmark category. The AMD Radeon Vega 8 wins in OpenCL compute workloads, while the AMD Radeon 540 wins in Vulkan graphics workloads.

In Geekbench OpenCL, the Vega 8 scores 8,822 against the Radeon 540's 6,184. That is a 42.7% advantage for the integrated part, a massive margin in a compute-focused test. The Vega 8's 512 shading units and 32 texture mapping units give it a raw throughput edge that shows up clearly when the workload scales across many parallel lanes. Its FP32 output of 1,126.4 GFLOPS versus 908.5 GFLOPS for the Radeon 540 reinforces this: the Vega 8 simply has more mathematical muscle for general compute tasks.

The Radeon 540 fights back in Vulkan. It posts 9,162 versus 8,134 for the Vega 8, an 11.2% lead for the discrete card. Vulkan's lower-level API overhead tends to favor discrete memory configurations, and the Radeon 540's dedicated 1,024 MB of GDDR5 on a 32-bit bus with 24.00 GB/s bandwidth helps it avoid the system memory sharing penalty that the Vega 8 must absorb. The Vega 8's memory bandwidth is listed as "System Dependent," which means its performance in memory-sensitive workloads can swing wildly based on the host platform's RAM configuration. The Radeon 540's fixed 24.00 GB/s is modest by discrete standards, but it is predictable.

The pixel rate story also favors the Radeon 540. It outputs 18.93 GPixel/s versus 8.80 GPixel/s for the Vega 8, thanks to 16 ROPs against just 8. That matters for fill-rate-bound scenarios like heavy post-processing or high-resolution UI rendering. The texture rate is closer: 28.39 GTexel/s for the Radeon 540 versus 35.20 GTexel/s for the Vega 8, so the Vega 8 actually has a texture throughput edge despite fewer total ROPs.

Looking at the broader benchmark context, the Vega 8 sits at the 45th percentile among all GPUs with an average score of 9,221. The Radeon 540 sits at the 41st percentile with an average score of 7,673. The nearest rivals for the Vega 8 include the AMD Radeon 890M (0.1% ahead), NVIDIA GeForce GTX 960 (0.6% ahead), NVIDIA GeForce GTX 465 (0.8% ahead), and NVIDIA GeForce GTX 850M (0.9% ahead). The Radeon 540's nearest rivals include the NVIDIA GeForce GTX 1660 Ti (0.6% ahead), AMD Radeon Pro WX 3100 (1.2% behind), AMD Radeon R7 250 (1.5% behind), and Intel Arc A310 (1.6% behind).

So the Vega 8's average score is higher, but the Radeon 540's Vulkan strength makes it the better choice for Vulkan-based gaming or graphics workloads.

The Verdict

The data points to different buyers for each card. The AMD Radeon Vega 8 is the pick for compute-heavy tasks that leverage OpenCL. Its 42.7% OpenCL advantage over the Radeon 540 is the single largest delta in this comparison. Anyone running OpenCL-accelerated productivity software, rendering plugins, or scientific workloads should favor the Vega 8. It also comes with a dramatically lower power envelope at 25 W TDP versus 50 W for the Radeon 540, and it needs no power connectors at all. The Vega 8 is an IGP, so it draws from the motherboard's existing power delivery.

The AMD Radeon 540 is the pick for Vulkan-based gaming or graphics applications. Its 11.2% Vulkan lead over the Vega 8, combined with dedicated GDDR5 memory, makes it more consistent in frame-time-sensitive scenarios. The 540 is a single-slot discrete card with a 250 W suggested PSU, so it fits into small prebuilt systems that lack integrated graphics or need a modest upgrade path. Its pixel rate of 18.93 GPixel/s is more than double the Vega 8's, which helps in resolution-heavy scenes.

The average benchmark scores favor the Vega 8 overall: 9,221 versus 7,673, a 20.2% gap. But averages flatten the workload-specific reality. If you only run Vulkan titles, the Radeon 540 is the better performer. If you only run OpenCL tasks, the Vega 8 is dramatically better. There is no universal winner.

For a system builder choosing between these two, the decision hinges on the primary software stack. Mixed workloads with both OpenCL and Vulkan components will see the Vega 8 pull ahead in compute phases and the Radeon 540 pull ahead in graphics phases. The Vega 8's higher percentile ranking (45th versus 41st) suggests it is the more capable all-rounder, but the Radeon 540's dedicated memory and superior pixel throughput make it the safer bet for purely graphical workloads.

Head-to-Head Benchmarks

The two benchmark tests in the database tell opposing stories.

Geekbench OpenCL: AMD Radeon Vega 8 wins with 8,822 against 6,184 for the AMD Radeon 540. That is a 42.7% margin, the largest performance gap in either direction. The Vega 8's 512 shading units and 32 TMUs outnumber the Radeon 540's 384 shading units and 24 TMUs. The FP32 throughput difference, 1,126.4 GFLOPS versus 908.5 GFLOPS, translates directly into OpenCL's parallel compute scaling. The Vega 8 also has a 2:1 FP16 ratio, producing 2.253 TFLOPS of half-precision throughput, while the Radeon 540 is locked at 1:1 with 908.5 GFLOPS. For workloads that can exploit FP16, the Vega 8's advantage grows even larger.

Geekbench Vulkan: AMD Radeon 540 wins with 9,162 against 8,134 for the AMD Radeon Vega 8. That is an 11.2% margin. The Radeon 540's dedicated 1,024 MB of GDDR5 memory on a 32-bit bus with 24.00 GB/s bandwidth provides deterministic memory access, while the Vega 8 relies on system shared memory with bandwidth that is "System Dependent." Vulkan's explicit memory management rewards dedicated VRAM, and the Radeon 540's 16 ROPs also help with the final pixel output stage. The Vega 8's 8 ROPs bottleneck its fill rate regardless of its higher shading unit count.

The wins split exactly one apiece in this head-to-head. The Vega 8's win is larger in percentage terms (42.7% versus 11.2%), but the Radeon 540's win comes in the more graphics-focused API. The average benchmark scores reflect the Vega 8's overall edge: 9,221 versus 7,673. However, the Radeon 540's Vulkan score of 9,162 is close to the Vega 8's average, while the Radeon 540's OpenCL score of 6,184 drags its average down considerably.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Vega 8 has an average benchmark score of 9,221, while the AMD Radeon 540 scores 7,673. The Vega 8 also holds the 45th percentile among all GPUs, compared to the 41st percentile for the Radeon 540.

Q: How big is the OpenCL performance difference?

A: The Vega 8 scores 8,822 in Geekbench OpenCL versus 6,184 for the Radeon 540, a 42.7% advantage for the Vega 8.

Q: Which GPU wins in Vulkan benchmarks?

A: The Radeon 540 scores 9,162 in Geekbench Vulkan versus 8,134 for the Vega 8, giving the Radeon 540 an 11.2% lead.

Q: What are the memory configurations?

A: The Vega 8 uses system shared memory with bandwidth described as "System Dependent." The Radeon 540 has 1,024 MB of dedicated GDDR5 on a 32-bit bus with 24.00 GB/s bandwidth.

Q: How do their power requirements compare?

A: The Vega 8 has a 25 W TDP and requires no power connectors. The Radeon 540 has a 50 W TDP, also requires no power connectors, and has a 250 W suggested PSU.

Q: What are their nearest rival comparisons?

A: The Vega 8's nearest rivals include the AMD Radeon 890M (0.1% ahead), NVIDIA GeForce GTX 960 (0.6% ahead), and NVIDIA GeForce GTX 465 (0.8% ahead). The Radeon 540's nearest rivals include the NVIDIA GeForce GTX 1660 Ti (0.6% ahead), AMD Radeon Pro WX 3100 (1.2% behind), and AMD Radeon R7 250 (1.5% behind).

Architecture Differences

These two GPUs come from different AMD architecture generations and different chip designs.

The AMD Radeon Vega 8 uses the GCN 5.0 architecture on the Raven chip. It is built on a 14 nm process at GlobalFoundries with 4,940 million transistors on a 210 mm² die, giving a transistor density of 23.5M per mm². The chip is part of the Vega IGP generation, specifically from Raven Ridge. Its predecessor is GCN 3.0 IGP and its successor is Vega II IGP. It was released in February 2018 and is now end-of-life.

The AMD Radeon 540 uses the GCN 4.0 architecture on the Lexa chip. It is also built on a 14 nm process at GlobalFoundries but packs only 2,200 million transistors on a 103 mm² die, for a transistor density of 21.4M per mm². This chip belongs to the Polaris generation, specifically the RX 500 family. Its predecessor is Arctic Islands and its successor is Vega. It was released in April 2017 and is also end-of-life.

The Vega 8 integrates 512 shading units, 32 TMUs, and 8 ROPs. The Radeon 540 has fewer shading units (384), fewer TMUs (24), but double the ROPs (16). The Vega 8's base clock is 300 MHz with a boost of 1100 MHz, while the Radeon 540's clocks are not listed in the database. The Vega 8's memory is system shared, while the Radeon 540 uses dedicated GDDR5.

The Vega 8 has higher FP32 throughput at 1,126.4 GFLOPS and supports FP16 at 2.253 TFLOPS with a 2:1 ratio. The Radeon 540 delivers 908.5 GFLOPS in FP32 and the same 908.5 GFLOPS in FP16 with a 1:1 ratio, meaning no half-precision speedup.

The Radeon 540's pixel rate of 18.93 GPixel/s is more than double the Vega 8's 8.80 GPixel/s, offsetting its lower texture rate of 28.39 GTexel/s versus 35.20 GTexel/s for the Vega 8.

API support differs slightly. The Vega 8 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The Radeon 540 supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. Both have no ray tracing cores or tensor cores.

Physical characteristics also differ. The Vega 8 is an IGP with no slot width, no power connectors, and motherboard-dependent display outputs. The Radeon 540 is a single-slot card with no power connectors, a 250 W suggested PSU, and two DisplayPort 1.4a outputs. It connects via PCIe 3.0 x8, while the Vega 8 uses the IGP bus interface.

The transistor count difference is stark: 4,940 million for the Vega 8 versus 2,200 million for the Radeon 540. The Vega 8's larger die (210 mm² versus 103 mm²) explains its higher shading unit count and compute throughput, but the Radeon 540's dedicated memory and ROP configuration give it the edge in graphics output stages.