Radeon HD 7870 XT vs Tesla K20Xm

AMD

Radeon HD 7870 XT

2012Core: 925 MHzBoost: 975 MHz
Similar parts
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VS
NVIDIA

Tesla K20Xm

2012Core: 732 MHz
Similar parts
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Radeon HD 7870 XT vs Tesla K20Xm Performance Spectrum

About G3D Mark

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Radeon HD 7870 XT vs Tesla K20Xm: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Radeon HD 7870 XT

2012

Why buy it

  • Costs $7,429 less on MSRP ($270 MSRP vs $7,699 MSRP).
  • Delivers 2794.9% more G3D Mark for each dollar spent, at 16.6 vs 0.6 G3D/$ ($270 MSRP vs $7,699 MSRP).
  • Draws 185W instead of 235W, a 50W reduction.

Trade-offs

  • Less VRAM, with 2 GB vs 6 GB for high-resolution textures and newer games.
  • 2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Tesla K20Xm

2012

Why buy it

  • 200% more VRAM for high-resolution textures and newer games (6 GB vs 2 GB).
  • More future proof: Kepler (2012−2018) on 28nm with a newer platform for upcoming games.

Trade-offs

  • 2012 hardware with 6 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • 2751.5% HIGHER MSRP
    $7,699 MSRPvs$270 MSRP
  • Lower G3D Mark per dollar, at 0.6 vs 16.6 G3D/$ ($7,699 MSRP vs $270 MSRP).
  • 27% higher power demand at 235W vs 185W.

Quick Answers

Which GPU is faster for gaming right now?
Radeon HD 7870 XT is the faster gaming card right now based on the synthetic data we have. It leads by 1.5% in PassMark G3D (4,470 vs 4,403), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
Radeon HD 7870 XT is the safer long-term pick for 2026 and beyond. The case is simple: the newer upscaling stack, FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack. That still leaves it as the safer long-term option on hardware alone.
Which GPU is the better buy today?
Radeon HD 7870 XT makes the most sense to buy today. It is $7,429 cheaper on MSRP at $270 vs $7,699, and it leads G3D-per-dollar by 2794.9% (16.6 vs 0.6), so the value case lines up with the gaming result.

Radeon HD 7870 XT vs Tesla K20Xm Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

AMD

Radeon HD 7870 XT

The Radeon HD 7870 XT is manufactured by AMD. It was released in November 19 2012. It features the GCN 1.0 architecture. The core clock ranges from 925 MHz to 975 MHz. It has 1536 shading units. The thermal design power (TDP) is 185W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,470 points. Launch price was $270.

NVIDIA

Tesla K20Xm

The Tesla K20Xm is manufactured by NVIDIA. It was released in November 12 2012. It features the Kepler architecture. The core clock speed is 732 MHz. It has 2688 shading units. The thermal design power (TDP) is 235W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,403 points. Launch price was $7,699.

Graphics Performance

The Radeon HD 7870 XT scores 4,470 and the Tesla K20Xm reaches 4,403 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon HD 7870 XT is built on GCN 1.0 while the Tesla K20Xm uses Kepler, both on a 28 nm process. Shader units: 1,536 (Radeon HD 7870 XT) vs 2,688 (Tesla K20Xm). Raw compute: 2.995 TFLOPS (Radeon HD 7870 XT) vs 3.935 TFLOPS (Tesla K20Xm).

FeatureRadeon HD 7870 XTTesla K20Xm
G3D Mark Score
4,470+2%
4,403
Architecture
GCN 1.0
Kepler
Process Node
28 nm
28 nm
Shading Units
1536
2688+75%
Compute (TFLOPS)
2.995 TFLOPS
3.935 TFLOPS+31%
ROPs
32
48+50%
TMUs
96
224+133%
L1 Cache
384 KB+71%
224 KB
L2 Cache
0.5 MB
1.5 MB+200%

Advanced Features (DLSS/FSR)

FeatureRadeon HD 7870 XTTesla K20Xm
Upscaling Tech
FSR Upscaling / FSR 4
Upscaling support
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
AMD Anti-Lag
Standard
💾

Video Memory (VRAM)

The Radeon HD 7870 XT has 2 GB of VRAM, while the Tesla K20Xm carries 6 GB. Tesla K20Xm gives you 200% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 256-bit on the Radeon HD 7870 XT and 64-bit on the Tesla K20Xm. L2 Cache: 0.5 MB (Radeon HD 7870 XT) vs 1.5 MB (Tesla K20Xm) — the Tesla K20Xm has significantly larger on-die cache to reduce VRAM reliance.

FeatureRadeon HD 7870 XTTesla K20Xm
VRAM Capacity
2 GB
6 GB+200%
Memory Type
GDDR5
GDDR5
Bus Width
256-bit+300%
64-bit
L2 Cache
0.5 MB
1.5 MB+200%
🔌

Power & Dimensions

The Radeon HD 7870 XT draws 185W versus the Tesla K20Xm's 235W — a 23.8% difference. The Radeon HD 7870 XT is more power-efficient. Recommended PSU: 500W (Radeon HD 7870 XT) vs 350W (Tesla K20Xm). Power connectors: 2x 6-pin vs PCIe-powered.

FeatureRadeon HD 7870 XTTesla K20Xm
TDP
185W-21%
235W
Recommended PSU
500W
350W-30%
Power Connector
2x 6-pin
PCIe-powered
Length
267mm
Height
111mm
Slots
2
Temp (Load)
80
Perf/Watt
24.2+29%
18.7
💰

Value Analysis

At launch, the Radeon HD 7870 XT came in at $270, while the Tesla K20Xm launched at $7699. On MSRP, Radeon HD 7870 XT was 96.5% cheaper ($7429 less). Performance per dollar on MSRP (G3D Mark / MSRP): 16.6 (Radeon HD 7870 XT) vs 0.6 (Tesla K20Xm) — the Radeon HD 7870 XT offers 2666.7% better value.

FeatureRadeon HD 7870 XTTesla K20Xm
MSRP
$270-96%
$7699
Performance per Dollar
16.6+2667%
0.6
Codename
Tahiti
GK110
Release
November 19 2012
November 12 2012
Ranking
#469
#473

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