AMD Radeon Vega 8 vs NVIDIA GeForce GTX TITAN BLACK Comparison

NVIDIA GeForce GTX TITAN BLACK vs AMD Radeon Vega 8 is a matchup between a 2014 flagship discrete GPU and a 2018 integrated graphics processor. The data shows a decisive performance gap, but the comparison reveals more than just a raw speed difference: it highlights two entirely different design philosophies and use cases. The TITAN BLACK dominates every benchmark in this comparison, while the Vega 8 counters with efficiency and modern API support.

Head-to-Head Benchmarks

The benchmark results are unambiguous in favor of the NVIDIA GeForce GTX TITAN BLACK. Across all three shared tests, the discrete card wins by margins that range from substantial to overwhelming. The smallest gap appears in Geekbench Metal, where the TITAN BLACK scores 24172 against the Vega 8's 10706. That represents a 125.8% advantage — the TITAN BLACK is more than twice as fast in this Apple-focused compute API.

The gap widens considerably in Geekbench OpenCL. Here, the TITAN BLACK posts 27218 while the Vega 8 manages only 8822. This 208.5% delta means the NVIDIA card delivers roughly three times the OpenCL compute throughput. For workloads that leverage this API — including many productivity and rendering applications — the performance difference is transformative rather than incremental.

Geekbench Vulkan shows the most lopsided result of all. The TITAN BLACK scores 29561 versus the Vega 8's 8134, a 263.4% margin. This is notable because Vulkan is a modern, low-overhead API that typically favors newer architectures. The fact that a 2014 Kepler card beats a 2018 GCN 5.0 part by this margin in Vulkan speaks to the sheer compute resource disparity between the two. The TITAN BLACK's 5.645 TFLOPS FP32 throughput dwarfs the Vega 8's 1,126.4 GFLOPS — a fivefold raw compute advantage that no software optimization can overcome.

The average benchmark scores reflect this pattern. The TITAN BLACK averages 9474 across its full benchmark suite, while the Vega 8 averages 9221. Despite the Vega 8 being much closer in average score, that figure is misleading: the TITAN BLACK's average includes legacy DirectX 9 and 2D tests where it scores relatively low, while the head-to-head compute tests show a far wider gulf. The percentile rankings confirm both cards sit near the middle of the GPU population — the TITAN BLACK at the 46th percentile and the Vega 8 at the 45th — but the TITAN BLACK achieves its position with far more raw muscle.

Where Each One Wins

The NVIDIA GeForce GTX TITAN BLACK wins every benchmark in this comparison, so the use-case split is primarily about what kind of user would consider each card at all. The TITAN BLACK's wins span Metal, OpenCL, and Vulkan — the three API families that matter for modern compute and gaming workloads. Its 2880 shading units, 240 texture mapping units, and 48 ROPs provide massive parallel throughput that the Vega 8's 512 shaders, 32 TMUs, and 8 ROPs simply cannot match.

The Vega 8's only practical advantage is its existence as an integrated processor. It uses system shared memory, draws just 25 W, requires no power connectors, and fits in any motherboard with an IGP-capable chipset. For a lightweight office PC, a media center, or a basic productivity machine, the Vega 8 is the only one of these two that makes sense — not because it wins benchmarks, but because it consumes a fraction of the power and requires no discrete card at all.

In terms of API support, the Vega 8 actually has a modern edge. It supports DirectX 12 (12_1) and Vulkan 1.3, while the TITAN BLACK caps out at DirectX 12 (11_1) and Vulkan 1.2.175. For future game compatibility, the Vega 8's newer API headers could matter, but the TITAN BLACK's raw speed means it will still outperform the Vega 8 in almost any real-world scenario that both cards can run.

Architecture Differences

The architectural gap between these two is generational. The TITAN BLACK uses the GK110B chip built on Kepler architecture, fabricated on TSMC's 28 nm process. It packs 7,080 million transistors into a 561 mm² die, yielding a transistor density of 12.6M per mm². The Vega 8 uses the Raven chip on GCN 5.0 architecture, built on GlobalFoundries' 14 nm process. It contains 4,940 million transistors on a 210 mm² die, achieving a much higher density of 23.5M per mm².

Clock speeds tell a story of two different design goals. The TITAN BLACK runs at a base of 889 MHz with a boost of 980 MHz, while the Vega 8 runs at a base of just 300 MHz and boosts to 1100 MHz. The Vega 8's higher boost clock cannot compensate for its much smaller execution engine. Memory configurations are entirely different classes: the TITAN BLACK has 6 GB of GDDR5 on a 384-bit bus with 336.0 GB/s of bandwidth, while the Vega 8 uses system shared memory with system-dependent bandwidth. The TITAN BLACK's memory subsystem alone — dedicated, high-bandwidth GDDR5 — explains a large portion of its benchmark dominance.

Feature differences extend beyond raw specs. The TITAN BLACK offers a pixel rate of 58.80 GPixel/s and a texture rate of 235.2 GTexel/s, versus the Vega 8's 8.800 GPixel/s and 35.20 GTexel/s. The TITAN BLACK supports FP32 at 5.645 TFLOPS; the Vega 8 manages 1,126.4 GFLOPS but adds FP16 support at 2.253 TFLOPS (2:1), which the TITAN BLACK lacks entirely. The TITAN BLACK is a dual-slot card with 1x 6-pin + 1x 8-pin power connectors and a 250 W TDP, while the Vega 8 is an IGP with no power connectors and a 25 W TDP — a tenfold power consumption difference.

FAQ

Q: Which card is faster in Geekbench Vulkan?

A: The NVIDIA GeForce GTX TITAN BLACK scores 29561 versus the AMD Radeon Vega 8's 8134, a 263.4% advantage for the NVIDIA card.

Q: Does the Vega 8 have any modern feature the TITAN BLACK lacks?

A: Yes. The Vega 8 supports DirectX 12 (12_1) and Vulkan 1.3, while the TITAN BLACK is limited to DirectX 12 (11_1) and Vulkan 1.2.175. The Vega 8 also supports FP16 compute at 2.253 TFLOPS (2:1), which the TITAN BLACK does not offer.

Q: How do the memory systems compare?

A: The TITAN BLACK has 6 GB of dedicated GDDR5 on a 384-bit bus with 336.0 GB/s bandwidth. The Vega 8 uses system shared memory with system-dependent bandwidth, meaning its memory performance depends entirely on the host system's RAM.

Q: What are the power requirements for each card?

A: The TITAN BLACK has a 250 W TDP, requires a 600 W suggested PSU, and needs 1x 6-pin + 1x 8-pin power connectors. The Vega 8 has a 25 W TDP, requires no power connectors, and has no suggested PSU rating because it is an IGP.

Q: Which card has higher transistor density?

A: The AMD Radeon Vega 8 has a density of 23.5M transistors per mm² on GlobalFoundries' 14 nm process, versus the TITAN BLACK's 12.6M per mm² on TSMC's 28 nm process.

Q: What is the average benchmark score difference?

A: The TITAN BLACK averages 9474 across its benchmarks, while the Vega 8 averages 9221. This 253-point difference is small relative to the head-to-head compute deltas because the TITAN BLACK's suite includes legacy DirectX 9 and 2D tests where it scores low.

Specification Differences

The two cards differ in nearly every measurable specification. The TITAN BLACK uses a GK110B chip on Kepler architecture from the GeForce 700 generation, while the Vega 8 uses Raven on GCN 5.0 from the Vega IGP (Raven Ridge) generation. Process nodes differ: 28 nm TSMC for NVIDIA versus 14 nm GlobalFoundries for AMD. Transistor counts are 7,080 million versus 4,940 million, with die sizes of 561 mm² versus 210 mm².

Clock speeds: the TITAN BLACK runs at 889 MHz base and 980 MHz boost, while the Vega 8 runs at 300 MHz base and 1100 MHz boost. Memory is 6 GB GDDR5 on a 384-bit bus with 336.0 GB/s bandwidth for the TITAN BLACK, versus system shared memory with system-dependent bandwidth for the Vega 8. The TITAN BLACK has 2880 shading units, 240 TMUs, and 48 ROPs; the Vega 8 has 512 shading units, 32 TMUs, and 8 ROPs.

Pixel and texture rates: 58.80 GPixel/s and 235.2 GTexel/s for NVIDIA, versus 8.800 GPixel/s and 35.20 GTexel/s for AMD. FP32 performance is 5.645 TFLOPS versus 1,126.4 GFLOPS. TDP is 250 W versus 25 W. The TITAN BLACK is dual-slot with 1x 6-pin + 1x 8-pin connectors and a 600 W suggested PSU; the Vega 8 is an IGP with no connectors and no PSU recommendation. The TITAN BLACK uses PCIe 3.0 x16, while the Vega 8 uses an IGP bus interface. Display outputs are 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2 for NVIDIA, versus motherboard-dependent outputs for AMD. The TITAN BLACK measures 267 mm long, 111 mm high, and 38 mm wide; the Vega 8 has no physical dimensions as an IGP.

The Verdict

The data makes the performance hierarchy clear: the NVIDIA GeForce GTX TITAN BLACK is overwhelmingly faster in every shared benchmark, with margins from 125.8% to 263.4%. Anyone needing maximum compute throughput for Metal, OpenCL, or Vulkan workloads should choose the TITAN BLACK without hesitation. Its 5.645 TFLOPS FP32 performance, 336.0 GB/s memory bandwidth, and 6 GB of dedicated VRAM put it in a completely different performance class.

The AMD Radeon Vega 8 is the choice only for systems where a discrete GPU is impossible or undesirable. Its 25 W TDP, lack of power connectors, and IGP form factor make it suitable for small, low-power builds. Its modern API support — DirectX 12 (12_1) and Vulkan 1.3 — gives it a compatibility edge for the latest software, but the TITAN BLACK's raw speed means it will still outperform the Vega 8 in nearly every scenario.

The TITAN BLACK sits at the 46th percentile of all GPUs, while the Vega 8 sits at the 45th, yet their nearest rivals tell the real story. The TITAN BLACK trades blows with the NVIDIA GeForce GTX 760 (0.2% delta), AMD Radeon R7 M380 (1.7% delta), NVIDIA Quadro K5000 (-1.7% delta), and NVIDIA GeForce GTX 960M (-1.8% delta). The Vega 8 is within 0.9% of the NVIDIA GeForce GTX 850M and within 0.8% of the NVIDIA GeForce GTX 465. These are integrated-graphics-level peers, confirming the Vega 8's place as a budget IGP rather than a performance part. Choose the TITAN BLACK for performance; choose the Vega 8 only when power and space constraints leave no alternative.