GPU Comparison

FAQ

Q: How does the NVIDIA GeForce RTX 2080 compare to the NVIDIA Tesla K40m in the database's average benchmark score?

A: The RTX 2080 has an average benchmark score of 22,895, while the Tesla K40m scores 19,885. This places the RTX 2080 at the 68th percentile among all GPUs, compared to the 65th percentile for the Tesla K40m.

Q: Which GPU wins in the available head-to-head benchmark, and by how much?

A: The GeForce RTX 2080 wins the Geekbench OpenCL test with a score of 91,313 against the Tesla K40m's 19,885. That is a 359.2% advantage for the RTX 2080.

Q: Do these cards have different memory configurations?

A: Yes. The RTX 2080 uses 8 GB of GDDR6 on a 256-bit bus with 448.0 GB/s bandwidth. The Tesla K40m uses 12 GB of GDDR5 on a 384-bit bus with 288.4 GB/s bandwidth.

Q: What are the launch MSRP values for these two cards?

A: The GeForce RTX 2080 had a launch MSRP of 699 USD. The Tesla K40m had a launch MSRP of 7,699 USD.

Q: Are both cards still in production?

A: No. Both are listed as end-of-life in the database. The RTX 2080 was released on 2018-09-19, and the Tesla K40m on 2013-11-21.

Q: How does the RTX 2080 compare to its nearest rivals, such as the RTX 3080?

A: The RTX 2080's average score of 22,895 is 1.2% below the RTX 3080, which averages 23,172. It is also 0.5% behind the Intel Arc B580 and 0.7% behind the AMD Radeon RX 580 2048SP, while sitting 0.7% ahead of the RTX 4060 Mobile.

Architecture Differences

The GeForce RTX 2080 is built on the Turing architecture using the TU104 chip, fabricated on a 12 nm process at TSMC. The Tesla K40m uses the older Kepler architecture with the GK110B chip, on a 28 nm process also from TSMC. This process gap is substantial: the RTX 2080 packs 13,600 million transistors into a 545 mm² die, yielding a transistor density of 25.0M per mm². The Tesla K40m contains 7,080 million transistors on a slightly larger 561 mm² die, giving a density of just 12.6M per mm².

Clock speeds reflect the architectural generational leap. The RTX 2080 runs at a 1515 MHz base clock and 1710 MHz boost, while the Tesla K40m operates at 745 MHz base and 876 MHz boost. Memory clocks also differ: the RTX 2080's GDDR6 runs at 1750 MHz with 14 Gbps effective transfer, whereas the Tesla K40m's GDDR5 runs at 1502 MHz with 6 Gbps effective.

The feature sets diverge sharply. The RTX 2080 includes 46 ray tracing cores and 368 tensor cores, capabilities entirely absent from the Tesla K40m, which lists neither. The RTX 2080 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Tesla K40m supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.175. The RTX 2080 also provides display outputs (1x HDMI 2.0, 3x DisplayPort 1.4a, 1x USB Type-C) while the Tesla K40m has no outputs at all, a compute-focused design.

Shading resources are comparable in count: the RTX 2080 has 2,944 shading units, 184 TMUs, and 64 ROPs. The Tesla K40m has 2,880 shading units, 240 TMUs, and 48 ROPs. The RTX 2080 thus has more ROPs, while the Kepler card has more texture units. Power consumption favors the newer card: the RTX 2080 is rated at 215 W TDP versus 245 W for the Tesla K40m, though both suggest a 550 W PSU. Both are dual-slot cards with identical 267 mm length.

Head-to-Head Benchmarks

The database contains one direct head-to-head benchmark between these two GPUs: Geekbench OpenCL. The RTX 2080 scores 91,313, while the Tesla K40m scores 19,885. The delta is 359.2% in favor of the RTX 2080. This is not a marginal victory; it is a dominant, multi-generational leap in compute performance.

To contextualize the Tesla K40m's result, its nearest rivals in the database are all close: the AMD FirePro W7000 averages 19,905 (0.1% ahead of the Tesla), the AMD Radeon RX 6650 XT averages 19,765 (0.6% behind), the AMD FirePro D300 averages 19,637 (1.3% behind), and the NVIDIA Quadro K5200 averages 19,602 (1.4% behind). The Tesla K40m sits at the 65th percentile overall. In other words, the K40m's 19,885 score is competitive with professional workstation cards of its era, but it is far outside the range of modern high-end consumer GPUs.

The RTX 2080, by contrast, sits at the 68th percentile and its 22,895 average score places it in a tight cluster with recent cards. It trails the RTX 3080 (23,172) by 1.2%, the AMD Radeon RX 580 2048SP (23,061) by 0.7%, and the Intel Arc B580 (23,021) by 0.5%. It leads the RTX 4060 Mobile (22,729) by 0.7%. The RTX 2080's OpenCL score of 91,313 is roughly 4.6 times the Tesla K40m's score in the same test, a gap that dwarfs the differences among their respective nearest rivals.

The wins tally is one to zero. The RTX 2080 takes the only recorded benchmark. The Tesla K40m has no victory in any head-to-head test in the database.

The Verdict

The data points to a clear conclusion: the GeForce RTX 2080 is the superior GPU by a wide margin. Its 359.2% lead in Geekbench OpenCL is the single strongest signal in the comparison. Anyone choosing between these two for compute-heavy workloads should select the RTX 2080 without hesitation, provided the 8 GB memory capacity is sufficient.

The Tesla K40m does retain one advantage: memory capacity. It offers 12 GB versus the RTX 2080's 8 GB, and its 384-bit bus is wider. But the K40m's GDDR5 memory delivers only 288.4 GB/s bandwidth, substantially below the RTX 2080's 448.0 GB/s. The larger frame buffer could matter for workloads that exceed 8 GB, but the K40m's lower bandwidth and far weaker compute performance make that a narrow use case.

The RTX 2080 also wins on efficiency. It draws 215 W TDP versus 245 W for the Tesla K40m, while delivering more than four times the OpenCL performance. It includes modern features the K40m lacks entirely: ray tracing cores, tensor cores, DirectX 12 Ultimate support, and display outputs. The Tesla K40m is a compute-only accelerator with no video outputs.

The Tesla K40m's nearest rivals in the database are all workstation and prosumer cards from around its launch era, and it is competitive among them. But against the RTX 2080, which sits among modern consumer cards like the RTX 3080, the K40m is simply outclassed. The RTX 2080's percentile ranking (68th) is only three points higher than the K40m's (65th), but that ranking is computed across all GPUs in the database, and the actual score gap is enormous.

For a system builder with a 550 W PSU and a PCIe 3.0 x16 slot, both cards fit physically and electrically. But the RTX 2080 requires one 6-pin and one 8-pin power connector, while the Tesla K40m's power connector configuration is not listed in the database. The RTX 2080 offers a complete feature set, modern API support, and a massive performance lead. The Tesla K40m offers more memory and nothing else.

The verdict is straightforward: the RTX 2080 is the pick for virtually any workload represented in the database. The Tesla K40m's 12 GB buffer is its only redeeming feature, and that advantage does not offset a 359.2% performance deficit.

Specification Differences

Process Node: The RTX 2080 uses a 12 nm process; the Tesla K40m uses 28 nm.

Transistors: The RTX 2080 has 13,600 million transistors; the Tesla K40m has 7,080 million.

Die Size: The RTX 2080 measures 545 mm²; the Tesla K40m measures 561 mm².

Transistor Density: The RTX 2080 achieves 25.0M per mm²; the Tesla K40m achieves 12.6M per mm².

Base Clock: The RTX 2080 runs at 1515 MHz; the Tesla K40m at 745 MHz.

Boost Clock: The RTX 2080 boosts to 1710 MHz; the Tesla K40m to 876 MHz.

Memory Clock: The RTX 2080 runs at 1750 MHz (14 Gbps effective); the Tesla K40m at 1502 MHz (6 Gbps effective).

Memory Size: The RTX 2080 has 8 GB; the Tesla K40m has 12 GB.

Memory Type: The RTX 2080 uses GDDR6; the Tesla K40m uses GDDR5.

Memory Bus Width: The RTX 2080 uses a 256-bit bus; the Tesla K40m uses a 384-bit bus.

Memory Bandwidth: The RTX 2080 delivers 448.0 GB/s; the Tesla K40m delivers 288.4 GB/s.

Shading Units: The RTX 2080 has 2,944; the Tesla K40m has 2,880.

TMUs: The RTX 2080 has 184; the Tesla K40m has 240.

ROPs: The RTX 2080 has 64; the Tesla K40m has 48.

Ray Tracing Cores: The RTX 2080 has 46; the Tesla K40m has none.

Tensor Cores: The RTX 2080 has 368; the Tesla K40m has none.

Pixel Rate: The RTX 2080 achieves 109.4 GPixel/s; the Tesla K40m achieves 52.56 GPixel/s.

Texture Rate: The RTX 2080 achieves 314.6 GTexel/s; the Tesla K40m achieves 210.2 GTexel/s.

FP32 Performance: The RTX 2080 delivers 10.07 TFLOPS; the Tesla K40m delivers 5.046 TFLOPS.

FP16 Performance: The RTX 2080 delivers 20.14 TFLOPS (2:1); the Tesla K40m has no listed FP16 performance.

TDP: The RTX 2080 is rated at 215 W; the Tesla K40m at 245 W.

Power Connectors: The RTX 2080 uses 1x 6-pin plus 1x 8-pin; the Tesla K40m's connectors are not listed.

Display Outputs: The RTX 2080 has 1x HDMI 2.0, 3x DisplayPort 1.4a, and 1x USB Type-C; the Tesla K40m has no outputs.

DirectX Support: The RTX 2080 supports DirectX 12 Ultimate (12_2); the Tesla K40m supports DirectX 12 (11_1).

Vulkan Support: The RTX 2080 supports Vulkan 1.4; the Tesla K40m supports Vulkan 1.2.175.

Dimensions: Both cards are 267 mm long, but the RTX 2080 is 116 mm high and 35 mm wide, while the Tesla K40m's height and width are not listed.

Release Date: The RTX 2080 was released on 2018-09-19; the Tesla K40m on 2013-11-21.

Predecessor: The RTX 2080's predecessor is GeForce 10; the Tesla K40m's predecessor is Tesla Fermi.

Successor: The RTX 2080's successor is GeForce 30; the Tesla K40m's successor is Tesla Maxwell.

Launch MSRP: The RTX 2080 launched at 699 USD; the Tesla K40m launched at 7,699 USD.