AMD Radeon HD 6870 1600SP Edition

Power and Cooling — TDP, PSU recommendation, connector requirements

The AMD Radeon HD 6870 1600SP Edition carries a TDP of 175 W, a figure that places it firmly in the mid-range power envelope of its generation. For a card of this class, the thermal design power is moderate, but the board’s physical footprint and connector layout demand attention during installation planning.

The card occupies a dual-slot width, which is standard for a cooler of this type, and its length measures 282 mm (11.1 inches). This is a substantial physical presence, so chassis clearance is a primary consideration — users with compact cases or tightly packed drive bays will need to verify available space before mounting. The dual-slot design houses a heatsink and fan assembly capable of dissipating the 175 W of heat generated under load, but the data does not specify the cooling solution's size or noise characteristics, so qualitative assessment is limited to noting that it is a capable air cooler.

Power delivery requires two 6-pin PCIe power connectors. This is a straightforward requirement, but it means the card cannot be powered solely through the PCIe slot. The suggested PSU rating is 450 W, which serves as the baseline for system builders. This recommendation assumes a typical configuration with a single graphics card and standard peripherals; users with power-hungry CPUs or multiple storage devices should consider headroom beyond this figure, though the fact pack provides no additional data on that front. The 2x 6-pin arrangement is common for this performance tier, and the 450 W suggestion aligns with the card’s 175 W TDP when accounting for the rest of the system draw.

The production status is listed as end-of-life, and the card was released on 2013-01-13, meaning it belongs to a mature platform. The 40 nm process node from TSMC, with 2,154 million transistors on a 334 mm² die, yields a transistor density of 6.4M per mm² — a figure that contextualizes the power draw relative to the silicon's complexity. The 175 W TDP is the only power metric provided, and the absence of boost or game clock figures means the thermal behavior under sustained load cannot be precisely modeled from the available data.

Ray Tracing and Feature Set — RT/tensor cores, API support from facts

This card predates the era of dedicated ray tracing and tensor cores; the fact pack lists neither RT cores nor tensor cores for the Radeon HD 6870 1600SP Edition. Consequently, hardware-accelerated ray tracing and AI-based features such as DLSS are not part of its capability set. The architecture is TeraScale 2, built on the Cypress chip, and it belongs to the Northern Islands generation (HD 6800 series), with Evergreen as its predecessor and Southern Islands as its successor.

API support is defined by the DirectX and OpenGL versions: the card supports DirectX 11.2 (feature level 11_0) and OpenGL 4.4. No Vulkan support is listed, which limits the card to older API paths for modern titles. DirectX 11.2 with the 11_0 feature level means the card is compliant with the DirectX 11 specification, but it lacks the newer feature levels introduced in later revisions. OpenGL 4.4 support is adequate for many older titles and productivity applications, but it does not extend to the latest OpenGL revisions.

The shading units number 1,600, paired with 80 texture mapping units (TMUs) and 32 raster operation units (ROPs). This configuration yields a pixel rate of 27.20 GPixel/s and a texture rate of 68.00 GTexel/s. The FP32 compute throughput is 2.720 TFLOPS, which is the raw single-precision floating-point performance available for general-purpose and shading workloads. There is no FP16 data provided, so half-precision performance cannot be assessed. The absence of ray tracing and tensor cores means the card relies entirely on traditional rasterization and compute shaders; any modern ray-traced effects would require software fallbacks, which the fact pack does not address.

Display outputs include 2x DVI, 1x HDMI 1.3a, and 2x mini-DisplayPort 1.1. This multi-output configuration supports up to five displays simultaneously, though the specific maximum resolution or refresh rates are not documented. The HDMI 1.3a standard and mini-DisplayPort 1.1 are older revisions, so they lack the bandwidth for the highest-resolution high-refresh-rate monitors. The bus interface is PCIe 2.0 x16, which provides adequate bandwidth for the card's 2.720 TFLOPS compute capacity, though it is an older revision compared to PCIe 3.0/4.0.

Memory Subsystem — VRAM size/type, bus width, bandwidth and what it means for high resolutions

The memory subsystem is built around 1024 MB of GDDR5, which is the full capacity of the card. The bus width is 256 bit, and the memory clock runs at 1050 MHz, translating to 4.2 Gbps effective data rate. This combination yields a memory bandwidth of 134.4 GB/s. These figures define the card's ability to feed its 1,600 shading units and 80 TMUs with texture and geometry data.

At 1024 MB, the VRAM capacity is modest by modern standards but was typical for the card's release period. For high resolutions, particularly 1440p and above, the 1 GB frame buffer can become a limiting factor. Texture-heavy scenes, high-resolution shadow maps, and large geometry buffers can exceed this capacity, forcing the driver to spill to system memory, which incurs a significant performance penalty. The 256-bit bus width helps mitigate this by providing a wide path for data transfer, but the 134.4 GB/s bandwidth is the effective ceiling—sufficient for 1080p gaming in most titles of its era, but constrained at higher resolutions where both capacity and bandwidth are taxed.

The 4.2 Gbps effective memory speed is a moderate figure; the bandwidth is adequate for the card's compute throughput, and the 27.20 GPixel/s pixel rate aligns with the memory subsystem's ability to move framebuffer data. However, the lack of FP16 support and the absence of any compression technology details mean the effective bandwidth utilization cannot be further refined. For users targeting 1080p, the memory subsystem is generally adequate, but the 1 GB capacity is the primary bottleneck when pushing beyond that resolution with high-detail settings.

How It Compares — position vs each nearest rival

The fact pack lists no nearest rivals for the AMD Radeon HD 6870 1600SP Edition. The percentile vs all GPUs is 50, which places it at the median of the database's tracked GPUs, but without specific rival data, comparative analysis must rely on this percentile figure alone. The card sits in the middle of the performance distribution, meaning it outperforms roughly half of all GPUs in the database and underperforms the other half.

The avgBenchmarkScore is 0, which suggests that no standardized benchmark score is available for this card, further limiting direct numerical comparisons to rivals. The absence of nearestRivals entries means there are no deltaPct values, no rival names, and no comparative scores to cite. The 50th percentile is the sole positional metric, and it indicates a balanced position in the overall landscape — not a top performer, not a bottom-tier part, but a card that holds its own in the median tier of the database.

Given the lack of rival data, the analysis cannot state specific performance advantages or deficits against named competitors. The card's 2.720 TFLOPS FP32 throughput, 134.4 GB/s bandwidth, and 1 GB VRAM are internally consistent metrics, but they cannot be anchored to external reference points from the fact pack. The TeraScale 2 architecture and 40 nm process are historical attributes, but without rival comparisons, the card's position is defined solely by its percentile rank.

Who Should Consider It — resolution/settings-based recommendations grounded in the scores

Based on the 50th percentile ranking and the memory subsystem characteristics, the AMD Radeon HD 6870 1600SP Edition is best suited for 1080p gaming at medium to high settings. The 1 GB VRAM and 134.4 GB/s bandwidth provide enough headroom for most titles at this resolution, provided texture quality is kept in check. The 2.720 TFLOPS compute throughput is sufficient for the shading and pixel work required at 1080p, and the 27.20 GPixel/s pixel rate ensures the ROPs can keep pace with the fill rate demands of that resolution.

At 1440p, the card becomes more constrained. The 1 GB frame buffer is likely to be exceeded in modern titles with high-resolution textures, leading to stuttering or texture pop-in as the system memory is used as a fallback. The 134.4 GB/s bandwidth, while not trivial, is insufficient to maintain smooth performance at higher resolutions with demanding settings. Users targeting 1440p should expect to lower settings significantly, and even then, the capacity limit may prove problematic.

For 4K, the card is not a viable option. The combination of 1 GB VRAM and 134.4 GB/s bandwidth falls far short of the requirements for 4K rendering, and the 2.720 TFLOPS compute capacity is inadequate for the pixel and shading workload. The card's end-of-life status and lack of modern API support (no Vulkan, DirectX 11.2 only) further limit its utility for contemporary titles that rely on newer graphics features.

The 50th percentile ranking indicates that the card is a middle-of-the-road performer in the database's historical context. It is suitable for esports titles and older games at 1080p, where its 1,600 shading units and 80 TMUs can be fully utilized without hitting the VRAM ceiling. For users with a 1080p monitor and a library of less demanding games, the card remains functional, but it is not recommended for high-refresh-rate or high-resolution scenarios.

FAQ — 4-6 Q&A pairs, each answerable from FACT PACK data

Q: What is the TDP of the AMD Radeon HD 6870 1600SP Edition?

A: The TDP is 175 W.

Q: How much VRAM does the card have, and what is its memory bandwidth?

A: The card has 1024 MB of GDDR5 memory with a 256-bit bus and a bandwidth of 134.4 GB/s.

Q: Does the card support hardware ray tracing?

A: No, the fact pack lists no RT cores for this card, so hardware-accelerated ray tracing is not supported.

Q: What power connectors does the card require?

A: The card requires 2x 6-pin PCIe power connectors, with a suggested PSU rating of 450 W.

Q: What is the card's physical length?

A: The card measures 282 mm (11.1 inches) in length and occupies a dual-slot width.

Q: What APIs are supported by this card?

A: The card supports DirectX 11.2 (feature level 11_0) and OpenGL 4.4; Vulkan support is not listed.

Q: What is the pixel rate and texture rate of the card?

A: The pixel rate is 27.20 GPixel/s, and the texture rate is 68.00 GTexel/s.