AMD Radeon 610M vs NVIDIA Quadro K620 Comparison

Where Each One Wins

The NVIDIA Quadro K620 and AMD Radeon 610M split their two recorded benchmark wins evenly, but the nature of those wins points to very different use cases. The Quadro K620 takes the Geekbench OpenCL test with a score of 6693 against 4535 for the Radeon 610M, a decisive 47.6% margin. That is a compute-oriented workload, and the data shows the older NVIDIA card is substantially stronger in raw GPGPU throughput. The Radeon 610M, by contrast, wins the Geekbench Vulkan test 6353 to 5870, a 7.6% advantage. Vulkan leans on modern graphics API features and driver overhead characteristics, which is where the newer RDNA 2.0 architecture pulls ahead.

For a builder deciding between these two, the split is clean: the Quadro K620 is the pick for OpenCL compute tasks, while the Radeon 610M is the pick for Vulkan-based rendering or gaming workloads. The Radeon 610M also carries a much lower 15 W TDP compared to the Quadro's 45 W, so in thermally constrained or battery-powered systems, it has a clear efficiency story. The Quadro K620, however, is a single-slot discrete card with its own 2 GB DDR3 memory and 28.80 GB/s of bandwidth, which matters for tasks that need dedicated VRAM rather than system-shared memory. The Radeon 610M relies entirely on System Shared memory with System Dependent bandwidth, so its performance in memory-heavy workloads will vary with the host system's RAM configuration.

Architecture Differences

The architectural gap between these two is generational and fundamental. The Quadro K620 uses the GM107 chip built on NVIDIA's Maxwell architecture, fabricated on a 28 nm process at TSMC. It packs 1,870 million transistors into a 148 mm² die, giving a transistor density of 12.6M per mm². The Radeon 610M uses the Mendocino chip on AMD's RDNA 2.0 architecture, built on a 6 nm process at TSMC, with a 100 mm² die size. The database does not list a transistor count for the Radeon, but the process node difference alone is stark: 28 nm versus 6 nm.

Core counts also differ significantly. The Quadro K620 has 384 shading units, 24 texture mapping units, and 16 raster output units. The Radeon 610M has 128 shading units, 8 TMUs, and 4 ROPs. Despite having fewer cores, the Radeon 610M boosts to 1900 MHz versus the Quadro's 1124 MHz boost clock, which helps close the raw throughput gap. Still, the Quadro's FP32 output is 863.2 GFLOPS compared to the Radeon's 486.4 GFLOPS, and its texture rate is 26.98 GTexel/s versus 15.20 GTexel/s. The Quadro also leads in pixel rate at 17.98 GPixel/s versus 7.600 GPixel/s.

The Radeon 610M does have features the Quadro lacks. It includes 2 ray tracing cores and supports DirectX 12 Ultimate (12_2), while the Quadro only supports DirectX 12 (11_0). The Radeon also lists FP16 performance at 972.8 GFLOPS (2:1 ratio), whereas the Quadro has no listed FP16 capability. Both cards support OpenGL 4.6 and Vulkan 1.4, so API coverage is otherwise equal. The Quadro uses a PCIe 2.0 x16 interface, while the Radeon uses PCIe 4.0 x8, which gives the newer card more bandwidth per lane despite the narrower link. The Radeon is an IGP (integrated graphics processor) with no slot width, while the Quadro is a single-slot discrete card measuring 160 mm in length and 69 mm in height.

Head-to-Head Benchmarks

The two recorded head-to-head results tell a story of specialization. In Geekbench OpenCL, the NVIDIA Quadro K620 scores 6693 against the AMD Radeon 610M's 4535. That 47.6% delta is the largest performance gap in either direction. OpenCL workloads typically scale with raw shader throughput and memory bandwidth, and the Quadro's 863.2 GFLOPS of FP32 compute and dedicated 28.80 GB/s of bandwidth give it a clear edge over the Radeon's 486.4 GFLOPS and system-dependent memory bandwidth. For users running OpenCL-accelerated applications such as certain video encoders, physics simulations, or productivity suites, this result indicates the Quadro K620 is the stronger choice despite being nearly a decade older.

In Geekbench Vulkan, the AMD Radeon 610M flips the result, scoring 6353 versus the Quadro K620's 5870. The 7.6% delta favors the RDNA 2.0 IGP. Vulkan is a lower-level API that benefits from modern driver stacks and hardware that can handle draw calls with less CPU overhead. The Radeon's higher boost clock of 1900 MHz and its support for DirectX 12 Ultimate features suggest it is better equipped for modern game engines that rely on Vulkan. Its FP16 throughput of 2:1 ratio also helps in certain shader-heavy scenes, which may contribute to its Vulkan advantage. The Quadro's Maxwell architecture, designed for professional workstation tasks, does not prioritize low-latency graphics in the same way, which likely explains the Vulkan result. For anyone planning to play modern games or run Vulkan-based emulation, the data favors the Radeon 610M.

The average benchmark scores reinforce the overall picture. The Quadro K620 averages 6282 across its benchmark suite, placing it in the 36th percentile of all GPUs in the database. The Radeon 610M averages 5444, placing it in the 32nd percentile. The Quadro's nearest rivals in the database are the NVIDIA GeForce RTX 5070 Ti SUPER at 6270 (0.2% slower), the NVIDIA GeForce RTX 4070 Ti SUPER AD102 at 6270 (0.2% slower), the AMD Radeon R7 M350 at 6327 (0.7% faster), and the AMD Radeon Pro WX 4100 at 6330 (0.8% faster). The Radeon 610M's nearest rivals are the NVIDIA Quadro M4000 at 5467 (0.4% faster), the AMD Radeon R7 M365X at 5416 (0.5% slower), the AMD Radeon R7 M440 at 5483 (0.7% faster), and the NVIDIA GeForce GTX 765M at 5501 (1% faster). These comparisons show both cards sit in a similar overall performance tier, trading blows depending on the API and workload in question.

FAQ

Q: Which card has better OpenCL performance?

A: The NVIDIA Quadro K620 wins OpenCL decisively. It scores 6693 in Geekbench OpenCL, which is 47.6% higher than the AMD Radeon 610M's 4535.

Q: Which card wins in Vulkan?

A: The AMD Radeon 610M wins Vulkan, scoring 6353 in Geekbench Vulkan against the NVIDIA Quadro K620's 5870. That is a 7.6% advantage for the Radeon 610M. The Radeon 610M supports DirectX 12 Ultimate (12_2, which may contribute to its Vulkan lead.

Q: How do their memory systems differ?

A: The NVIDIA Quadro K620 has 2 GB of DDR3 memory with a 128-bit bus and 28.80 GB/s bandwidth. The AMD Radeon 610M uses System Shared memory with System Dependent bandwidth, meaning its memory performance depends on the host system. The Quadro's memory bandwidth is fixed at 28.80 GB/s, while the Radeon's is not specified as a fixed number.

Q: What are the power consumption differences?

A: The NVIDIA Quadro K620 has a 45 W TDP, while the AMD Radeon 610M has a 15 W TDP. The Quadro suggests a 200 W PSU, while the Radeon has no suggested PSU listed since it is an IGP. The Quadro has no power connectors, and the Radeon also has no power connectors.

Q: Are there any API support differences?

A: Both support DirectX 12, OpenGL 4.6, and Vulkan 1.4. The NVIDIA Quadro K620 supports DirectX 12 (11_0), while the AMD Radeon 610M supports DirectX 12 Ultimate (12_2). The Radeon also has 2 ray tracing cores, which the Quadro lacks.

Q: What is the release timeline for these two cards?

A: The NVIDIA Quadro K620 was released on 2014-07-21, and the AMD Radeon 610M was released on 2022-09-19. Both are marked as end-of-life in the database.

Q: Do the cards have different bus interfaces?

A: Yes. The NVIDIA Quadro K620 uses PCIe 2.0 x16, while the AMD Radeon 610M uses PCIe 4.0 x8. The Radeon's newer PCIe generation provides higher per-lane bandwidth, but the Quadro's x16 link offers more lanes.

Specification Differences

The two cards differ in nearly every major specification category. The process node is a key gap: the NVIDIA Quadro K620 uses 28 nm, while the AMD Radeon 610M uses 6 nm. The Quadro's chip is GM107 on Maxwell architecture, while the Radeon uses Mendocino on RDNA 2.0. Die size also differs: the Quadro is 148 mm², the Radeon is 100 mm². The Quadro lists 1,870 million transistors and a transistor density of 12.6M per mm²; the Radeon has no listed transistor count or density.

Core configurations are significantly different. The Quadro K620 has 384 shading units, 24 TMUs, and 16 ROPs. The Radeon 610M has 128 shading units, 8 TMUs, and 4 ROPs, but adds 2 ray tracing cores. Clock speeds favor the Radeon: its base clock is 1500 MHz and boost is 1900 MHz, while the Quadro's base is 1058 MHz and boost is 1124 MHz. Memory systems are completely different: the Quadro has 2 GB DDR3 on a 128-bit bus with 28.80 GB/s bandwidth, while the Radeon uses System Shared memory with System Dependent bandwidth. The Quadro's memory runs at 900 MHz (1800 Mbps effective), while the Radeon's memory clock is listed as System Shared.

Compute rates favor the Quadro in most categories. Its pixel rate is 17.98 GPixel/s versus the Radeon's 7.600 GPixel/s. Its texture rate is 26.98 GTexel/s versus 15.20 GTexel/s. Its FP32 output is 863.2 GFLOPS versus 486.4 GFLOPS. The Radeon counters with FP16 performance of 972.8 GFLOPS (2:1), while the Quadro has no listed FP16 value. Power draws differ by a wide margin: the Quadro is 45 W, the Radeon is 15 W. The Quadro suggests a 200 W PSU; the Radeon has no suggested PSU. Form factors differ as well: the Quadro is a single-slot card at 160 mm length and 69 mm height with a PCIe 2.0 x16 interface, while the Radeon is an IGP with no listed dimensions and a PCIe 4.0 x8 interface. Display outputs also differ: the Quadro has 1x DVI and 1x DisplayPort 1.2, while the Radeon's outputs are Portable Device Dependent.

The Verdict

The data paints a clear picture for different buyers. If the primary workload is OpenCL compute, the NVIDIA Quadro K620 is the stronger choice. Its 47.6% OpenCL lead over the Radeon 610M, combined with 863.2 GFLOPS of FP32 compute and a fixed 28.80 GB/s of dedicated memory bandwidth, makes it the more capable compute-oriented card. It also has a higher average benchmark score of 6282 versus the Radeon's 5444, and it sits in the 36th percentile of all GPUs compared to the Radeon's 32nd.

If the workload leans toward Vulkan graphics or if power efficiency is a priority, the AMD Radeon 610M is the better pick. Its 7.6% Vulkan win, 1900 MHz boost clock, ray tracing cores, and DirectX 12 Ultimate support give it a modern feature set that the Quadro cannot match. Its 15 W TDP is one-third of the Quadro's 45 W, which makes it far more suitable for compact or battery-powered systems. The Radeon also has no power connectors and is an IGP, so it requires no separate card slot beyond the PCIe 4.0 x8 interface.

The choice ultimately comes down to workload type and platform constraints. A desktop workstation with a free PCIe slot and a need for dedicated VRAM in OpenCL applications should take the Quadro K620. A mobile or space-constrained system that prioritizes modern graphics APIs, lower power draw, and Vulkan performance should take the Radeon 610M. Neither card dominates the other across the board; the recorded benchmarks show a 1-1 split, and the specification differences reinforce that each card serves a distinct niche.